Followup-- 2000 JGC V-8 still overheating
01-18-2007, 12:12 PM
#301
Guest
Posts: n/a
Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 10:24:14 -0500, Mike Romain <romainm@sympatico.ca>
wrote:
>The CJ7 has the 4 bladed fixed fan, no clutch there, it just roars all
>the time. A fan shroud also might be in order, it didn't come with one.
COnsider a aftermarket flex fan because it will move more air at lower
RPMs and feather out a bit at higher speed limiting air flow and noise
and a stock fixed fan does neither. I have a old J20 with a clutch fan
but when I used to work it hard towing horse trailers in summer heat
to trail ride year ago I removed clutch fan and installed a big clutch
fan in its place. Yes it was noisy at times but temp gage never moved
even towing in hot weather and it ran better too because it kept
underhood temps lower as well from increased airflow at all times and
the cab a bit cooler too (it has no A/C) because things where a bit
cooler up front including firewall. .
-----------------
TheSnoMan.com
wrote:
>The CJ7 has the 4 bladed fixed fan, no clutch there, it just roars all
>the time. A fan shroud also might be in order, it didn't come with one.
COnsider a aftermarket flex fan because it will move more air at lower
RPMs and feather out a bit at higher speed limiting air flow and noise
and a stock fixed fan does neither. I have a old J20 with a clutch fan
but when I used to work it hard towing horse trailers in summer heat
to trail ride year ago I removed clutch fan and installed a big clutch
fan in its place. Yes it was noisy at times but temp gage never moved
even towing in hot weather and it ran better too because it kept
underhood temps lower as well from increased airflow at all times and
the cab a bit cooler too (it has no A/C) because things where a bit
cooler up front including firewall. .
-----------------
TheSnoMan.com
01-18-2007, 12:15 PM
#302
Guest
Posts: n/a
Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 07:23:51 -0800, "Carl"
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
01-18-2007, 12:15 PM
#303
Guest
Posts: n/a
Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 07:23:51 -0800, "Carl"
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
01-18-2007, 12:15 PM
#304
Guest
Posts: n/a
Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 07:23:51 -0800, "Carl"
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
01-18-2007, 12:15 PM
#305
Guest
Posts: n/a
Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 07:23:51 -0800, "Carl"
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
<carlsaiyed@hotmailREMOVE.com> wrote:
>The trouble with a flex fan is if you hit mud or deep water its going
>EVERYWHERE and probably going to damage the fan.
Never seen it happen. The worst that might happen is you might throw a
belt. Mud has to get through raditor and shroud to get to fan (water
is not a problem) and if that much mud gets through raditor then it is
toast and you will not be running long regardless of fan type.
-----------------
TheSnoMan.com
01-18-2007, 12:17 PM
#306
Guest
Posts: n/a
Re: Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 08:13:26 -0700, "Earle Horton"
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
01-18-2007, 12:17 PM
#307
Guest
Posts: n/a
Re: Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 08:13:26 -0700, "Earle Horton"
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
01-18-2007, 12:17 PM
#308
Guest
Posts: n/a
Re: Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 08:13:26 -0700, "Earle Horton"
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
01-18-2007, 12:17 PM
#309
Guest
Posts: n/a
Re: Re: Re: Re: Followup-- 2000 JGC V-8 still overheating
On Thu, 18 Jan 2007 08:13:26 -0700, "Earle Horton"
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
<earle@vascongado.usa> wrote:
>As "dave AKA vwdoc1" points out, some manufacturers are advocating insanely
>long oil change intervals now. As one of my neighbors recently found out,
>this is only good for decreasing the service life of the engine.
It does look good on the sales hype sheet though because they use it
to somewhat justify higher prices with lower maintainance costs
offsetting them some over time. Most buy into it blindly.
-----------------
TheSnoMan.com
01-18-2007, 12:33 PM
#310
Guest
Posts: n/a
Re: Followup-- 2000 JGC V-8 still overheating
SnoMan wrote:
> On Thu, 18 Jan 2007 10:24:14 -0500, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> The CJ7 has the 4 bladed fixed fan, no clutch there, it just roars all
>> the time. A fan shroud also might be in order, it didn't come with one.
>
>
> COnsider a aftermarket flex fan because it will move more air at lower
> RPMs and feather out a bit at higher speed limiting air flow and noise
> and a stock fixed fan does neither. I have a old J20 with a clutch fan
> but when I used to work it hard towing horse trailers in summer heat
> to trail ride year ago I removed clutch fan and installed a big clutch
> fan in its place. Yes it was noisy at times but temp gage never moved
> even towing in hot weather and it ran better too because it kept
> underhood temps lower as well from increased airflow at all times and
> the cab a bit cooler too (it has no A/C) because things where a bit
> cooler up front including firewall. .
> -----------------
> TheSnoMan.com
The problem with a clutch or flex fan is I off road a lot. When
crossing 40" or so of water, a flex fan would likely take out my rad. I
have this monster 7 bladed thing sitting out in the garage.
I never have low speed issues with the CJ7, only high speed.
I/we also kill the clutch fans 'really' fast. The slightest bit of mud
gets in them and turns to liquid sandpaper destroying the seal. We are
on the 3rd clutch fan on the XJ. The parts seem to 'just' survive the
warranty period.
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)
> On Thu, 18 Jan 2007 10:24:14 -0500, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> The CJ7 has the 4 bladed fixed fan, no clutch there, it just roars all
>> the time. A fan shroud also might be in order, it didn't come with one.
>
>
> COnsider a aftermarket flex fan because it will move more air at lower
> RPMs and feather out a bit at higher speed limiting air flow and noise
> and a stock fixed fan does neither. I have a old J20 with a clutch fan
> but when I used to work it hard towing horse trailers in summer heat
> to trail ride year ago I removed clutch fan and installed a big clutch
> fan in its place. Yes it was noisy at times but temp gage never moved
> even towing in hot weather and it ran better too because it kept
> underhood temps lower as well from increased airflow at all times and
> the cab a bit cooler too (it has no A/C) because things where a bit
> cooler up front including firewall. .
> -----------------
> TheSnoMan.com
The problem with a clutch or flex fan is I off road a lot. When
crossing 40" or so of water, a flex fan would likely take out my rad. I
have this monster 7 bladed thing sitting out in the garage.
I never have low speed issues with the CJ7, only high speed.
I/we also kill the clutch fans 'really' fast. The slightest bit of mud
gets in them and turns to liquid sandpaper destroying the seal. We are
on the 3rd clutch fan on the XJ. The parts seem to 'just' survive the
warranty period.
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)
