CJ5 Heaters
11-04-2005, 03:46 AM
#41
Guest
Posts: n/a
Re: CJ5 Heaters
It is not a "fact of life" that a Jeep is a cold ride. My Wrangler is
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
11-04-2005, 03:46 AM
#42
Guest
Posts: n/a
Re: CJ5 Heaters
It is not a "fact of life" that a Jeep is a cold ride. My Wrangler is
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
11-04-2005, 03:46 AM
#43
Guest
Posts: n/a
Re: CJ5 Heaters
It is not a "fact of life" that a Jeep is a cold ride. My Wrangler is
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
comfortable, even though I live above 9,000 feet in the San Juan Mountains
of Colorado, and it is darn cold in the mornings. The Wrangler does not
have a lot of insulation either, like the "Girl's Jeeps" mentioned in other
threads. All I have are vinyl floor mats, without even insulating pads
under them. You can lose heat capacity from a clogged, partially
obstructed, or even just dirty heater core, either in the coolant passages
or in the air part. Any air leak, either in the vehicle or in the
heater/defroster system, is going to cause problems. Replace the thermostat
if the engine isn't running hot enough. This will make the engine last
longer too. The Windjammer helps too. If you really have to, put some
cardboard in front of the radiator. I haven't found this necessary. In my
experience a properly operating thermostat is adequate.
It also helps to have genes, from people who weren't afraid to make an
Atlantic crossing in the dead of winter, in an unheated wooden ship. Or
going further back, whose preferred battle attire, was a coating of blue
clay. People are too soft now. I once drove a Honda 600 passenger car, an
air cooled vehicle with hardly any heating system, thirty miles in Western
Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Earle
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>
>
>
11-04-2005, 09:12 AM
#44
Guest
Posts: n/a
Re: CJ5 Heaters
Wow, I used to have to wear ski warm ups and felt boots with mitts and a
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
11-04-2005, 09:12 AM
#45
Guest
Posts: n/a
Re: CJ5 Heaters
Wow, I used to have to wear ski warm ups and felt boots with mitts and a
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
11-04-2005, 09:12 AM
#46
Guest
Posts: n/a
Re: CJ5 Heaters
Wow, I used to have to wear ski warm ups and felt boots with mitts and a
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
scraper in one hand on highway runs before I changed the blower motor
and tuned the heater. I now can drive the same trip with pants and
shoes and the coat wide open, let alone bare hands.... I do sometime
still wear a left hand glove in the real cold.
I got a radical difference.
I flushed the heater core and got a bit hotter heat, but the large
temperature increase I got was when I rerouted my heater hoses. I had
cold heater hoses when compared to my rad hoses.
The heater hoses have a tendency to physically run higher than the level
of coolant in the radiator. This makes for an air lock that only lets
half the volume of coolant that could flow pass into the heater core.
Mine was high in two places, the hose from the pump to the intake
manifold wasn't a molded hose so it went up too high as it passed over
the valve cover and the long line back that passes over the alternator.
We had the exact same issue with our Cherokee. The level in the
reservoir was 1" too low so the long hoses were above it.
I do have to warm them both up 'before' hitting the highway though. If
I start out cold at -25 or so, it doesn't really warm up.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Aug./05 http://www.imagestation.com/album/in...?id=2120343242
(More Off Road album links at bottom of the view page)
Greg wrote:
>
> I also did the upgrade last year, 81 CJ7, and like the other poster,
> better but not the 100% better that others talk about, more like 20% better.
>
> "Frenchy" <mfrench@mt.gov> wrote in message
> news:1131061135.455904.195480@g14g2000cwa.googlegr oups.com...
> >I have a 1980 CJ5. The heater works good but the blower leaves
> > something to ones imagination. I read once where an older stlye blower
> > motor out of a GMC/Chev truck would work by opening the housing hole
> > just a little but would bolt right up. Is this true and if so what
> > year & type blower motor does a guy need to increase the air flow?? Or
> > any other ideas to get more heat and defrost?
> > Thanks
> >
11-04-2005, 10:36 AM
#47
Guest
Posts: n/a
Re: CJ5 Heaters
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>-----------------------------------------------------
I moved from Phoenix, AZ to eastern Washington state. My heater did not get
used for 22 years, so I replaced, the duct work and the heater core. (The
nasty/high mineral AZ water had plugged the core completely) I was going to
do the blower motor upgrade, but mine blows so much hot air now that I don't
need it. I'm looking forward to testing my defrosters when the temperature
gets below zero. I'll post here if it doesn't keep me warm this winter.
Norman
1982 CJ-7
11-04-2005, 10:36 AM
#48
Guest
Posts: n/a
Re: CJ5 Heaters
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>-----------------------------------------------------
I moved from Phoenix, AZ to eastern Washington state. My heater did not get
used for 22 years, so I replaced, the duct work and the heater core. (The
nasty/high mineral AZ water had plugged the core completely) I was going to
do the blower motor upgrade, but mine blows so much hot air now that I don't
need it. I'm looking forward to testing my defrosters when the temperature
gets below zero. I'll post here if it doesn't keep me warm this winter.
Norman
1982 CJ-7
11-04-2005, 10:36 AM
#49
Guest
Posts: n/a
Re: CJ5 Heaters
"Rich" <harrisfam1988@verizon.net> wrote in message
news:m8zaf.6093$9E4.532@trndny02...
> Bill that will increase the flow of hot water only. It doesn't address the
> airflow problem with the fan. The blower upgrade works well, but as I and
> the other posters have found out, it's not the cure all for CJ heater
woes.
> I even put a new heater core in my CJ (for $25.00 it was worth it while
it
> was out) and performance was better with the new fan but still far short
of
> ideal. It's a fact of life when you drive a Jeep you either live in a warm
> place or drive a cold ride. Last year I moved from San Diego to Rhode
Island
> (You think dirvers in Califoria are bad you should see what they do out
> here.). I now drive a cold Jeep. Gloves, coats and hats I already have, an
> Aux heater is not in the stars for me. One thing that helped was to use my
> Besttop Windjammer in the winter. It compatmentalizes the interior of the
> Jeep and makes it so the heater only has to heat the front seat area.
Cheap
> fix for someone who doesn't need to use the back seat.
> Rich
>
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:436ABA5A.E65FA3FC@***.net...
> > Take a large garden hose, clamp it on and flush out the heater
> > core. Being higher than the engine it often gets an air pocket that
> > solidifies deposits that clog many of the tubes. Even well maintained
> > radiators need that little extra.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > Greg wrote:
> >>
> >> I also did the upgrade last year, 81 CJ7, and like the other poster,
> >> better but not the 100% better that others talk about, more like 20%
> >> better.
>-----------------------------------------------------
I moved from Phoenix, AZ to eastern Washington state. My heater did not get
used for 22 years, so I replaced, the duct work and the heater core. (The
nasty/high mineral AZ water had plugged the core completely) I was going to
do the blower motor upgrade, but mine blows so much hot air now that I don't
need it. I'm looking forward to testing my defrosters when the temperature
gets below zero. I'll post here if it doesn't keep me warm this winter.
Norman
1982 CJ-7
11-04-2005, 04:11 PM
#50
Guest
Posts: n/a
Re: CJ5 Heaters
On Fri, 4 Nov 2005 08:46:08 UTC "Earle Horton"
<nurse-nospam-busters@msn.com> wrote:
> I once drove a Honda 600 passenger car, an
> air cooled vehicle with hardly any heating system, thirty miles in Western
> Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Now THAT explains a lot of things <g>.
--
Will Honea
<nurse-nospam-busters@msn.com> wrote:
> I once drove a Honda 600 passenger car, an
> air cooled vehicle with hardly any heating system, thirty miles in Western
> Massachusetts, in the dead of winter, with no windshield, to the glass shop.
Now THAT explains a lot of things <g>.
--
Will Honea