813 clutch slipping smell? - Page 2 - Steel Soldiers::Military Vehicles Supersite

glcaines · 04-05-2011, 21:59

Quote:

Originally Posted by bevanet

I also noticed that my engine water temp crept up to about 230 degrees. There is only about an inch of coolant in the bottom of the "can" on top of the engine when hot. What level should it be? The coolant looked clean, so I'm wondering if it is low on coolant or the thermostat is stuck and that made the engine hot enough to make something stink. The outside air temp was about 55 degrees the truck was empty, so doesn't seem like it was working very hard.

Something is not right if your engine temperature climbed like that, especially with minimal load and cool ambient temperature. Two thoughts:

1. Perhaps the burning smell was the belt slipping causing the water pump to not move coolant through the radiator like it should.
2. Plugged up radiator, stuck thermostat or faulty water pump.

Also, your truck could have been making that smell all along, but the air blowing by carried the smell away before you smelled it. When driving slow packing the road in low range, there wasn't much wind to blow the smell away.

bevanet · 04-06-2011, 19:40

looks like I need to look into the cooling first. Does anyone know how full the coolant can is supposed to be, and what manual explains how to change the thermostat?

OPCOM · 04-08-2011, 00:41

The can should have a line on it I think about halfway. It should not be allowed to get empty.

bevanet · 04-28-2011, 18:24

I got back up in the woods today and looked at the 813. The belts all seem to be loose. I can turn the water pump, fan, and power steering pulleys with my hands. It sounds like this may be the problem - engine heating up -> causes stuff to smell (possible belt slipping smell) -> I think it is the clutch slipping. I'll read up on how to tighten the belts and give it a test run next time I'm up there. Thanks for the ideas!

m139h2otruck · 04-29-2011, 09:38

I have no idea how long you have had your truck, or how long it sat before you got it, but when we got the M812A1, the coolent looked like rusty water. All the little small hose lines that connect between the thermostat housing, the engine, the radiator and the surge tank were either plugged tight with rust or totally broken down on the inside so no fluid could flow. I installed a WIX coolent filter w/ SCA on the side of the block so the coolent would not go acid over time (at least not as quick). There are photos here somewhere.