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-   -   Running cold (http://www.risingsun4x4club.org/forum2/showthread.php?t=8367)

subzali 10-13-2008 09:57 AM

Running cold
 
My engine has been having a hard time getting up to operating temperature since before Cruise Moab and I can't figure it out. I just put a new t-stat, o-ring and gasket in and it's a little better but not much :rant:

Before I search endless threads on MUD for other solutions, does anybody have any thoughts? I need HEAT for the Spooky Night Run!

treerootCO 10-13-2008 10:14 AM

Determine what the operating temperature of your engine is first. If the engine is operating at 170+ then your heater should work. Use a lazer temp gauge or something other than your gauge. I cleaned out my heater core and found a solid inch of dog hair on top. The lines can be flushed with a garden hose.

treerootCO 10-13-2008 10:18 AM

1 Attachment(s)
http://forum.ih8mud.com/40-55-series...ater-core.html

Crash 10-13-2008 11:01 AM

Quote:

Originally Posted by treerootCO (Post 88168)
Determine what the operating temperature of your engine is first. If the engine is operating at 170+ then your heater should work. Use a lazer temp gauge or something other than your gauge. I cleaned out my heater core and found a solid inch of dog hair on top. The lines can be flushed with a garden hose.

Sure, blame it on dogs you cat person!! :hill:
Hey, clean out your pm box - I tried to leave a message and couldn't.

subzali 10-13-2008 11:15 AM

Yeah, and you have to change your sig line cause the Ptarmigan don't look like that no mo'! :hill:

I can check my heater core for hair, but I've had it apart the last two summers/falls/winters so it should be pretty clean unless something got into it over the past couple of months. I've done the muriatic acid treatment several times on the tubes, so they should be clean as well.

I'm not understanding how my engine is overcooling since I have the t-stat in correctly with the o-ring etc. I should probably take the t-stat out and check to make sure it opens and closes. Oy :rolleyes:

If I can't figure it out I'm just going to put cardboard in front of the radiator just for the Spooky Night Run so we have some heat!

subzali 10-13-2008 11:51 AM

Maybe I need to lean out the fuel a little bit? It might be running a little on the rich side...

subzali 10-13-2008 01:03 PM

Or maybe my cooling system needs to be burped?

rover67 10-13-2008 11:56 PM

i dunno, but maybe the t-stat is sticking open?? even though it's new....

does the rad hose stay cool till the truck warms up, or does it slowly warm up with the truck?

Rzeppa 10-13-2008 11:59 PM

Quote:

Originally Posted by treerootCO (Post 88168)
Determine what the operating temperature of your engine is first. If the engine is operating at 170+ then your heater should work. Use a lazer temp gauge or something other than your gauge. I cleaned out my heater core and found a solid inch of dog hair on top. The lines can be flushed with a garden hose.

Don't forget pine needles and cat hair!

http://rzeppa.org/tech/heater.jpg

subzali 10-14-2008 09:22 AM

I'll pull the inlet duct to the heater core and check for obstructions and I'm going to replace the thermostat tonight (I happen to have a new spare a just bought as well that I just remembered). Has anyone ever had to double o-ring the top of the thermostat?


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