Reverse rotation fan clutch

[diesel_lv]

Having a hard time cruising at 60 in 115 temps keeping engine under 200. It's regularly 220. Custom aluminum shroud w 2 high cfm electric fans. Idles at 190 w a/c on for 20 minutes. Want to find a shop that will rebuild a Hayden low profile heavy duty fan clutch w a reverse rotation heavy duty clutch so I can run factory shroud and large, 19", reverse rotation fan. I have 3" between water pump pulley and radiator. Does anyone know of a company that can do this? Hayden will not.

 

[MoparLeo]

The fans do nothing after 45 mph. What are you trying to accomplish with the " reverse rotation" fan clutch? It is supposed to only work at low rpm/speeds. They are designed to not draw HP at higher speeds and freewheel.

 

[diesel_lv]

The fans do nothing after 45 mph. What are you trying to accomplish with the " reverse rotation" fan clutch? It is supposed to only work at low rpm/speeds. They are designed to not draw HP at higher speeds and freewheel.

It allows me to use a stock shroud which allows much more air through the radiator at a higher velocity than an aluminum electric fan shroud does at speed. Thought I explained that earlier. Sorry for my mistake

 

[diesel_lv]

Here's my current shroud w fans. It has as much area cut out as possible for highway driving but still does not keep temps down. I have a 2 1" row aluminum radiator, 2-1/4" thick total, 3 pass. I've used 180 and 160 degree high flow robert Shaw style thermostat, Flowcooler water pump. At idle, stays at 190° with a/c on high an 37° at the vents. This is a water flow, air flow or radiator capability problem. All of the red circles are cut outs for airflow at speed and rubber flaps to cover the holes at idle so fan can pull air.

 

[BeepBeepRR]

Saw this article 2 years ago it may help you to cool your car. Check it out.
https://www.hotrod.com/articles/mopars-need-extra-help-heat-heres-fix/

 

[Cranky]

My 95 Dakota with a V6 came with a copper/brass 2 row radiator from the factory and it would heat up in traffic and more so when stopped for more than a minute with the AC on and would continue to climb well over 200 in just a few minutes. Dealt with it until it finally sprung a leak and stuck in an aftermarket replacement that was aluminum but with big tubes even though it was a single row. Don't remember how wide the tubes were in the original radiator was but the replacement tubes were larger than both rows together in the old one. This thing has never run cooler stopped in traffic or running 80!

And on the reverse rotation fans....are you running a serpentine belt setup that requires a reverse rotation pump? If so, you might look at the fans on the full size trucks or even the mid size ones. Both of my Dakotas have the reverse rotation setup and so did my 2000 Durango.

 

[diesel_lv]

Saw this article 2 years ago it may help you to cool your car. Check it out.
https://www.hotrod.com/articles/mopars-need-extra-help-heat-heres-fix/

I am running all of that. I got their triple flow radiator because of this article.

 

[diesel_lv]

My 95 Dakota with a V6 came with a copper/brass 2 row radiator from the factory and it would heat up in traffic and more so when stopped for more than a minute with the AC on and would continue to climb well over 200 in just a few minutes. Dealt with it until it finally sprung a leak and stuck in an aftermarket replacement that was aluminum but with big tubes even though it was a single row. Don't remember how wide the tubes were in the original radiator was but the replacement tubes were larger than both rows together in the old one. This thing has never run cooler stopped in traffic or running 80!

And on the reverse rotation fans....are you running a serpentine belt setup that requires a reverse rotation pump? If so, you might look at the fans on the full size trucks or even the mid size ones. Both of my Dakotas have the reverse rotation setup and so did my 2000 Durango.

Yes, running serpentine setup. That is why I want a less than 3" thick overall reverse rotation heavy duty fan clutch. Unfortunately the new vehicles use a large nut on the fan clutch, not four bolts.

 

[Cranky]

Yes, running serpentine setup. That is why I want a less than 3" thick overall reverse rotation heavy duty fan clutch. Unfortunately the new vehicles use a large nut on the fan clutch, not four bolts.

Yup, they do have that large nut. I kinda like it as it's much easier to take the fan off. I run my Dakota without the fan in the winter time as I like to hammer the truck and seems like the water pump lasts much longer without the fan on it at high rpm's. It also run better in cold weather.....