Getting hot after Hayden fan

4x4kingx889 · **Joined:** Sun Jul 17, 2011 6:42 pm **Posts:** 235

I installed the Hayden fan clutch with the v6 nylon fan and in 80-90 degrees on step grades with the ac on it starts to get hot the clutch is not even 2 months old has a new OEM tstat with the proper coolant also any suggestions?

Sent from my SAMSUNG-SGH-I537 using Tapatalk 2

4x4kingx889 · **Joined:** Sun Jul 17, 2011 6:42 pm **Posts:** 235

Sent from my SAMSUNG-SGH-I537 using Tapatalk 2

MRausch82 · **Posted:** Mon Jul 22, 2013 5:23 pm

This is interesting. I have seen several reports now of folks running hot after the Hayden fan clutch. I wonder if there are a bad batch of them out there, or if there are other factors involved, and folks just happen to have the Hayden installed...

65Corvair · **Posted:** Mon Jul 22, 2013 8:44 pm

It would be interesting to see if the problem went away if you reinstalled your metal 5 blade fan. I changed the clutch on mine to a hayden ad kept the metal fan and have not had a problem yet...

ATXKJ · **Posted:** Mon Jul 22, 2013 10:02 pm

well - I'd tend to look at coolant levels - did you get the air bubbles out?

there were/are folks running around with no engine fan at all - and not over heating.

so unless you're towing or climbing serious mountains -

I'm not convinced the fan/clutch makes too much of a difference.

(mine, stock got hot climbing Colorado mountain passes - Texas Hill country never made a difference)

DOC4444 · **Posted:** Mon Jul 22, 2013 11:15 pm

The OEM steel fan definitely moves more air than the nylon one.

DOC

ATXKJ · **Posted:** Tue Jul 23, 2013 3:50 am

DOC4444 wrote:

The OEM steel fan definitely moves more air than the nylon one.

DOC

Keith mentioned that - but never gave any numbers.

flash7210 · **Posted:** Tue Jul 23, 2013 8:01 am

ATXKJ wrote:

well - I'd tend to look at coolant levels - did you get the air bubbles out?

there were/are folks running around with no engine fan at all - and not over heating.

so unless you're towing or climbing serious mountains -

I'm not convinced the fan/clutch makes too much of a difference.

(mine, stock got hot climbing Colorado mountain passes - Texas Hill country never made a difference)

When I did my timing belt a year ago, I kept the engine fan removed.
Using electric fan only.
No over heating problems. (I don't ever tow anything)

I just completed a trip from FL to DE and back. No over heating, but there really were not
any mountains either.

FYI: with the A/C off, the electric fan comes on at 230 deg F.

4x4kingx889 · **Joined:** Sun Jul 17, 2011 6:42 pm **Posts:** 235

Before I did the Hayden fan i ran the entire winter and spring with no fan and had no problems then installed this for summer and have this issue I will try the metal fan and see if this fixes it

Sent from my SAMSUNG-SGH-I537 using Tapatalk 2

thermorex · **Posted:** Tue Jul 23, 2013 11:06 am

ATXKJ wrote:

DOC4444 wrote:

The OEM steel fan definitely moves more air than the nylon one.

DOC

Keith mentioned that - but never gave any numbers.

ATXKJ, I believe Keith answered to one of my posts a while ago, regarding stock fan cfm, and metal fan is somewhere in between 5,200 -5,600 cfm when locked, pretty hard to beat this number...
Edit: I found the original link:

viewtopic.php?f=5&t=74419&p=779811&hilit=stock+cfm#p779811

"The stock mechanical fan (at full engagement) will pull about 5400 cfm at rated speed (4000 rpm engine). You will be hard pressed to find another fan that will pull more air within ..."

flash7210 · **Posted:** Tue Jul 23, 2013 11:19 am

About 5400 cfm at 4000 rpm?
Sounds great, but who is driving their CRD at 4000 rpm?

Hexus · **Posted:** Tue Jul 23, 2013 11:45 am

The rpms at the fan and the rpms at the driveshaft are not the same sir.

Heh.

flash7210 · **Posted:** Tue Jul 23, 2013 11:48 am

Hexus wrote:

The rpms at the fan and the rpms at the driveshaft are not the same sir.

Heh.

My point is, who is driving their CRD, whether cruising down the highway or up a hill, with the
engine at 4000 rpm?
I suspect most people are cruising between 1800 and 2400.
They might get up to 3000 rpm if they are going up a hill with the O/D-off.

naturist · **Posted:** Tue Jul 23, 2013 1:39 pm

Buuuuut getting back to the OP's problem…it shouldn't be getting that hot at all, since you are not towing anything. I'm gonna second the "are you sure you got all the air out" question, and add that while it's never happened to me, there have been a few reports of the coolant gelling and plugging things up, notably the heater core, and if it can do that, why not the radiator, or other places.

To the OP, that is getting really close to the gauge reading when I hear the Hayden clutch kick the fan into action on mine. But it never does that unless I AM towing in hot weather.

There is clearly something wrong, and not the Hayden fan clutch. What you are seeing is totally inconsistent with normal behavior. I have NEVER seen the temp gauge that high when not towing. The presence or absence of a fan and clutch should have no effect on that. The central question is why is heating up in the first place.

Lancer · **Posted:** Tue Jul 23, 2013 5:33 pm

See the post I started on overheating and the helpful suggestions I had on there - for which I am grateful. A couple of members that I respect run the nylon fan and hayden combo and find it advantageous, and they live in hot/humid climes, which is why I went for it. I'm flushing the cooling system and replacing the coolant next Monday, and checking the electric fan tomorrow. I'll also be jetwashing the radiators and hosing the stack out from inside the engine bay.

ATXKJ · **Posted:** Tue Jul 23, 2013 6:01 pm

be careful on the jet washing - you can actually bend radiator fins - and end up with worse cooling

also if you think the fan clutch is a problem - one test is to just get rid of it - before thermostats - Kap worked on fans
he removed the clutch and did a 'Fixed Flex Fan' - you can try without the Flex - just use the spacer and either plastic or metal fan.

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?p=574419#p574419

also from the old discussion thread

LibertyCRD wrote:

We just came through our hottest Summer on record here in Kentucky. In August, temps. outside were regularly in the 100°F range with heat index temps. in the 115-125°F range for weeks on end.

Not one single time did my temperature guage in the Jeep ever go above half-way...and that is with NO fan whatsoever. Once, while towing 7,000 lbs. uphill in Tennessee it did go about 3/4 scale...but that's to be expected. Running with no trailer is no problem with no fan in any weather. So I'm sticking with the cheap route, and throwing the fan in the garbage.

4x4kingx889 · **Joined:** Sun Jul 17, 2011 6:42 pm **Posts:** 235

It only gets warm with the ac on hills I will try cleaning the radiator/intrrcooler/ac condenser

Sent from my SAMSUNG-SGH-I537 using Tapatalk 2

Hexus · **Posted:** Tue Jul 23, 2013 8:42 pm

flash7210 wrote:

Hexus wrote:

The rpms at the fan and the rpms at the driveshaft are not the same sir.

Heh.

My point is, who is driving their CRD, whether cruising down the highway or up a hill, with the
engine at 4000 rpm?
I suspect most people are cruising between 1800 and 2400.
They might get up to 3000 rpm if they are going up a hill with the O/D-off.

Wow, just.... well.... wow. :shock:

Lancer · **Posted:** Wed Jul 24, 2013 4:24 am

Sorry ATX - I meant that I'd be using the ordinary hose on the cooling stack, and the jetwasher on the rest of the vehicle.

papaindigo · **Posted:** Wed Jul 24, 2013 8:46 am

Back to the OP's bits of information about the problem:
1. ran winter/spring with no fan and no heat rise
2. installed Hayden fan clutch and nylon fan for summer
3. experiences heat rise on hills with AC on and ambient temps of 80-90F which is not all that hot.
I presume during the winter/spring those same hills were run with no AC and no heat rise.

So what's changed a) AC use and b) Hayden fan clutch and nylon fan install.

Offhand I'd suspect an AC issue possibly low freon or the AC associated electric fan not working properly if at all particularly at lower speeds where the mechanical fan may not be moving a lot of air especially if the AC condenser/intercooler/radiator stack is partially clogged. Also out there is the possibility that the temp gauge is not accurate due to miscalibration (http://www.greendieselengineering.com/f ... st/19.page) or a bad sending unit on the back of the tstat which is something that might be worth checking with and IR temp gun. For what it's worth if the OP temp gauge is accurate and temps of ca. 225F are being reached then both the AC electric fan and Hayden fan clutch should be engaged which would or should bring the temp down rapidly

Getting hot after Hayden fan

Who is online