Do not know the source of the sticky stuff
Hi Bob
Not sure of the source of the sticky stuff, this is the second time that I have run in to it. Both times it has developed on clutches that had worked fine but were out of the truck for some reason then when reassembled the clutches did release correctly and sometimes I would have to start the engine with the truck in gear, brake on and clutch peddle pushed all the way in. Only cure seemed to be to pull the clutch out again and replace or really clean it.
Only thing I can suspect is that I had degreased or cleaned the clutch plate while it was out but not gotten it really clean. Then the first time the plate was warmed up the oil or grease came to the surface. But what confuses me is that when I overhauled the HUP I had this problem when I reassembled. Had to pulled the clutch again, really cleaned it, flywheel and pressure plate. Second time cleaned it I know I used brake cleaner and then a water based degrease and rinsed the whole thing with very hot water 160F and it worked fine since then.
Now as to the thermostat what I wanted was a 140F but they are no longer available so went with a 160F drilled a 1/8th hole in the thermostat to be sure that there would be flow to get the hot water up into the thermostat housing. Without a heater connected to the thermostat housing and the water pump as on all current cars there can be a real lag in getting the thermostat to open. On my 261 I actually put a small bypass tube to be sure of flow.
As to worrying about not getting the engine warm enough don't think it will be a problem. The dog house is tight enough that my 261 with no manifold heat riser starts and runs fine even below "0"F do put the radiator muff on to drive in real cold weather but that is more for the driver.
My IR gun readings of the oil pan tell me that drives of hour even in cold weather the oil is getting up to 180F. The remote oil filters on 261 do not get that warm though. Suppose in arctic conditions there might be a problem with water collecting and freezing in the oil filters.
Cheers Phil
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