CUCV Cooling System Upgrade Kit

[sschaefer3]

I do not have the sensor. But if you tell me what sensor it is, I'll buy one. I just want to make sure I'll get all this stuff back in the end.

 

[911joeblow]

Oh absolutely, I just need to them to make sure everything fits correctly. I could buy the sensor too if I had the part number.

 

[sschaefer3]

As far as I can tell, this is the sensor. It is for the glow plug controller card.

http://www.steelsoldiers.com/showthread.php?116079-Temp-Sensor&p=1455692&viewfull=1#post1455692

 

[richingalveston]

that is the glow plug controller card sensor but not the one you need That one goes in the passenger side port right behind exhaust manifold. The one you need is for the idiot light.
It goes in the block off plate. I can possibly get a picture of mine.

 

[sschaefer3]

Idiot light sensor is the front of the driver side head. That is where I plumbed my mechanical temp gauge and I no longer have the idiot light. My truck has a GP sensor on the back of the drivers side.

 

[sschaefer3]

This is the rear of my Drive Side head.

 

[sschaefer3]

This is where my coolant idiot light sensor was. The front of the drive side head.

 

[richingalveston]

maybe it is the temp sensor for high idle solenoid. can't remember what it is for but not the glow plug card.

 

[sschaefer3]

Warthog seems to think it is in this thread.

http://www.steelsoldiers.com/showthread.php?116079-Temp-Sensor&p=1455692&viewfull=1#post1455692

 

[choll]

Hopping you get this figured out I will buy one ASAP. I have the same issue as sschaefer3 going up long hot inclines gets the temp to 210+

 

[ken]

Have yall tried swapping to a 180 deg thermostat? I also swapped to a 6 blade 20inch fan. The stock 5 blade fan isn't up the task. Even towing my tractor in 100+ Texas heat it never breaks 190 now.

 

[ssdvc]

I think the OP's intent is to come up with a system that attempts to improve the 6.2 cooling by directing some coolant flow directly to the rear of the block, where temperatures are much high than average and have an adverse effect on block longevity. Just swapping out stats won't do that.

 

[ken]

I agree. I am planning on adding his kit my self. I can understand a 195 tstat for trucks in New England. But for those of us in a warmer climate running so close to critical temps can't be a good idea. I would think a lower inlet water temp could only help keep these hot spots in check. A bigger 6 blade fan and a lower tstat should help reduce these temps through out the block/heads. Some guys out west are running well over 200. too hot for my comfort.

 

[911joeblow]

This is the rear of my Drive Side head. View attachment 682387

This is what I need in hand. I assume both the two wire and the single wire are identical thread count and size. What I am going to do is fabricate a custom block off plate to contain both the sensor and my coolant fitting but the packaging is VERY tight and I dont want to start making these unless I know it will fit properly. I am getting a bunch of HMMWV kits out this week and will get back on this once I have a sensor in hand. I should be able to get this done next week or two.

 

[911joeblow]

I have a sensor on the way to facilitate the fitting process.

 

[rsh4364]

Where does the AN fitting to hose barb 90 go to? I'm thinking heater but my humvee crossover has heater hose outlet in same spot as my cucv crossover.

 

[911joeblow]

Where does the AN fitting to hose barb 90 go to? I'm thinking heater but my humvee crossover has heater hose outlet in same spot as my cucv crossover.

I have fabricated an adapter that moves the thermostat and cover out from the crossover a bit and allows for the return from my system into the adapter.

 

[rsh4364]

Interested, looking forward to the end product, thanks.

 

[richingalveston]

You can purchase in line thermostats, just wondering if it would be simplified and give better flow if the rear cross overs connected to an in line thermostat which could then return to the radiator side of thermostat. It would be possible also to split the radiator hose with a simple T.

This would bypass the need for the dual thermostat setup that the cucv does not have

just a thought. carry on
Rich

 

[sschaefer3]

The plate with the threaded hole is on the way to you in the mail.