L.W.(Bill) ------ III wrote:
> Actually all replacement pumps and carburetor kits made since about
> 1985 (?) are made to be used with alcohol. Before that period the best
> valves, diaphragms, and hoses were made out of neoprene, which dissolves
> in alcohol. Another bad rap we got during the japanese invasion.


They were hardly the best then, were they?


Alcoholproofing one's fuel system has been acknowledged as a necessity
for like twenty years now.

 

L.W.(Bill) ------ III wrote:
> Actually all replacement pumps and carburetor kits made since about
> 1985 (?) are made to be used with alcohol. Before that period the best
> valves, diaphragms, and hoses were made out of neoprene, which dissolves
> in alcohol. Another bad rap we got during the japanese invasion.


They were hardly the best then, were they?


Alcoholproofing one's fuel system has been acknowledged as a necessity
for like twenty years now.

 

L.W.(Bill) ------ III wrote:
> Actually all replacement pumps and carburetor kits made since about
> 1985 (?) are made to be used with alcohol. Before that period the best
> valves, diaphragms, and hoses were made out of neoprene, which dissolves
> in alcohol. Another bad rap we got during the japanese invasion.


They were hardly the best then, were they?


Alcoholproofing one's fuel system has been acknowledged as a necessity
for like twenty years now.

 

Drag racers and off roaders are still using Holley if the really
want to go fast: http://www.holley.com/categories.asp?division=Holley
yep, twenty years ago ARCO snuck a ten percent alcohol into their
gasolines to meet Kalifornia's SMOG requirements. ARCO, being the
cheapest that didn't ping I used until my engines flooded with bad
needle valves.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Bret Ludwig wrote:
>
> They were hardly the best then, were they?
>
> Alcoholproofing one's fuel system has been acknowledged as a necessity
> for like twenty years now.

 

Drag racers and off roaders are still using Holley if the really
want to go fast: http://www.holley.com/categories.asp?division=Holley
yep, twenty years ago ARCO snuck a ten percent alcohol into their
gasolines to meet Kalifornia's SMOG requirements. ARCO, being the
cheapest that didn't ping I used until my engines flooded with bad
needle valves.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Bret Ludwig wrote:
>
> They were hardly the best then, were they?
>
> Alcoholproofing one's fuel system has been acknowledged as a necessity
> for like twenty years now.

 

Drag racers and off roaders are still using Holley if the really
want to go fast: http://www.holley.com/categories.asp?division=Holley
yep, twenty years ago ARCO snuck a ten percent alcohol into their
gasolines to meet Kalifornia's SMOG requirements. ARCO, being the
cheapest that didn't ping I used until my engines flooded with bad
needle valves.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Bret Ludwig wrote:
>
> They were hardly the best then, were they?
>
> Alcoholproofing one's fuel system has been acknowledged as a necessity
> for like twenty years now.

 

Mike,

If the engine dates from the mid-80's, it's probably okay. The older
ones (my Olds Oddfire is a '64) use a rubber bellows and rubber flapper
valves in the mechanical pump. The $40 Purolator/Facet electronic pump
doesn't have any rubber parts. The one I use has a 4-6psi output, for a
carburetor. (Only drawback is noise. Mount it properly to the frame or
it will sound like a Model T when you are idling.) If you have fuel
injection, your system is probably safe enough for alcohol already.

I've used Arco gas for years, never had any problems with it. When MTBE
was being phased out, they added a small amount of alcohol, 3-5%, which
wasn't enough to hurt the rubber parts. Now that MTBE has been banned,
they upped the alcohol to 10%. All the gas is like that now. When my
Jeep stalled, the lady at the auto club and the tow driver both said
they have had a lot of calls lately from owners of older cars that
simply stopped running. Ethanol in the gas is like welfare for mechanics
and new car dealers.

I replaced the accelerator pump and float needle/seat in the Rochester
carb, so hopefully I won't have any more problems. Now I have to check
my '71 Datsun 240Z to be sure the alcohol isn't going to screw it up next.

Bill

Mike Romain wrote:
> Same goes for the 258 engine! The owners manual states 'no' amount of
> alcohol is safe in them. My float needle maybe lasts a year before
> getting gummed or crudded up.
>
> Do you know about the fuel pumps on those?
>
> 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!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Bill Lahr wrote:
>
>>Now that MTBE has been removed from gasoline, the government mandated
>>replacing it with 10% ethanol. If you are running an older engine (like
>>the '64 Olds V6 in my CJ), the alcohol will tear up the fuel pump and
>>hoses. I speak from experience when my '61 Jeep died and I had to call
>>the flatbed to get it home. Fuel pump pressure had dropped to about
>>1psi. I replaced the stock pump with a Purolator/ Facet electronic pump
>>(around $40) and get a steady 4psi at the carburetor. (If you are
>>running one of the older Dupree plunger pumps, be advised that the
>>alcohol will tear up the bellows in it too. There are no replacement
>>parts to solve the problem.) Be sure to replace the old hoses and fuel
>>filters too. Alcohol will tear up older rubber hoses and they can plug
>>the filter inside the carburetor inlet.
>>--
>>
>>Bill Lahr
>>mr.bill@pcmagic.net


--

Bill Lahr
mr.bill@pcmagic.net

 

Mike,

If the engine dates from the mid-80's, it's probably okay. The older
ones (my Olds Oddfire is a '64) use a rubber bellows and rubber flapper
valves in the mechanical pump. The $40 Purolator/Facet electronic pump
doesn't have any rubber parts. The one I use has a 4-6psi output, for a
carburetor. (Only drawback is noise. Mount it properly to the frame or
it will sound like a Model T when you are idling.) If you have fuel
injection, your system is probably safe enough for alcohol already.

I've used Arco gas for years, never had any problems with it. When MTBE
was being phased out, they added a small amount of alcohol, 3-5%, which
wasn't enough to hurt the rubber parts. Now that MTBE has been banned,
they upped the alcohol to 10%. All the gas is like that now. When my
Jeep stalled, the lady at the auto club and the tow driver both said
they have had a lot of calls lately from owners of older cars that
simply stopped running. Ethanol in the gas is like welfare for mechanics
and new car dealers.

I replaced the accelerator pump and float needle/seat in the Rochester
carb, so hopefully I won't have any more problems. Now I have to check
my '71 Datsun 240Z to be sure the alcohol isn't going to screw it up next.

Bill

Mike Romain wrote:
> Same goes for the 258 engine! The owners manual states 'no' amount of
> alcohol is safe in them. My float needle maybe lasts a year before
> getting gummed or crudded up.
>
> Do you know about the fuel pumps on those?
>
> 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!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Bill Lahr wrote:
>
>>Now that MTBE has been removed from gasoline, the government mandated
>>replacing it with 10% ethanol. If you are running an older engine (like
>>the '64 Olds V6 in my CJ), the alcohol will tear up the fuel pump and
>>hoses. I speak from experience when my '61 Jeep died and I had to call
>>the flatbed to get it home. Fuel pump pressure had dropped to about
>>1psi. I replaced the stock pump with a Purolator/ Facet electronic pump
>>(around $40) and get a steady 4psi at the carburetor. (If you are
>>running one of the older Dupree plunger pumps, be advised that the
>>alcohol will tear up the bellows in it too. There are no replacement
>>parts to solve the problem.) Be sure to replace the old hoses and fuel
>>filters too. Alcohol will tear up older rubber hoses and they can plug
>>the filter inside the carburetor inlet.
>>--
>>
>>Bill Lahr
>>mr.bill@pcmagic.net


--

Bill Lahr
mr.bill@pcmagic.net

 

Mike,

If the engine dates from the mid-80's, it's probably okay. The older
ones (my Olds Oddfire is a '64) use a rubber bellows and rubber flapper
valves in the mechanical pump. The $40 Purolator/Facet electronic pump
doesn't have any rubber parts. The one I use has a 4-6psi output, for a
carburetor. (Only drawback is noise. Mount it properly to the frame or
it will sound like a Model T when you are idling.) If you have fuel
injection, your system is probably safe enough for alcohol already.

I've used Arco gas for years, never had any problems with it. When MTBE
was being phased out, they added a small amount of alcohol, 3-5%, which
wasn't enough to hurt the rubber parts. Now that MTBE has been banned,
they upped the alcohol to 10%. All the gas is like that now. When my
Jeep stalled, the lady at the auto club and the tow driver both said
they have had a lot of calls lately from owners of older cars that
simply stopped running. Ethanol in the gas is like welfare for mechanics
and new car dealers.

I replaced the accelerator pump and float needle/seat in the Rochester
carb, so hopefully I won't have any more problems. Now I have to check
my '71 Datsun 240Z to be sure the alcohol isn't going to screw it up next.

Bill

Mike Romain wrote:
> Same goes for the 258 engine! The owners manual states 'no' amount of
> alcohol is safe in them. My float needle maybe lasts a year before
> getting gummed or crudded up.
>
> Do you know about the fuel pumps on those?
>
> 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!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> Bill Lahr wrote:
>
>>Now that MTBE has been removed from gasoline, the government mandated
>>replacing it with 10% ethanol. If you are running an older engine (like
>>the '64 Olds V6 in my CJ), the alcohol will tear up the fuel pump and
>>hoses. I speak from experience when my '61 Jeep died and I had to call
>>the flatbed to get it home. Fuel pump pressure had dropped to about
>>1psi. I replaced the stock pump with a Purolator/ Facet electronic pump
>>(around $40) and get a steady 4psi at the carburetor. (If you are
>>running one of the older Dupree plunger pumps, be advised that the
>>alcohol will tear up the bellows in it too. There are no replacement
>>parts to solve the problem.) Be sure to replace the old hoses and fuel
>>filters too. Alcohol will tear up older rubber hoses and they can plug
>>the filter inside the carburetor inlet.
>>--
>>
>>Bill Lahr
>>mr.bill@pcmagic.net


--

Bill Lahr
mr.bill@pcmagic.net

 

Bill Lahr wrote:

>
> I replaced the accelerator pump and float needle/seat in the Rochester
> carb, so hopefully I won't have any more problems. Now I have to check
> my '71 Datsun 240Z to be sure the alcohol isn't going to screw it up next.
>

Twenty years late is better than never, I guess.