Getting worried about my 258
Cheepjeep85
Crazy Sr. Respected Jeeper
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- Location
- Chickamauga, Ga
- Vehicle(s)
- 1985 Jeep CJ7, 258, t-176, D300, AMC20, D30
sounds like a solid plan
Well some good and mixed news. Head gasket was good, compression and oil pressure were good. Oil sending unit was bad. I took the mechanic the oil sending unit and gauge I had ordered from quadretec, they were having problems tracking one down around here. They are checking the grounds for the fuel gauge as well.
The mixed news is it's still running hotter than it should. But everything checked out good. The mechanic speculated that the airconditioner condenser in front of the radiator could be the culprit, but I doubt that since either the factory or dealer installed it in 83. Seems like it would have been an issue before now. My uncle gave me an article this weekend from a classic car mag(he is a classic car guy) where a guy had restored an early 80's jeep and was having overheating issues. He drilled a hole on the flat part of the thermostat and that solved the issue. He said built up steam was stopping the flow of water through the thermo. If you are still reading does that seem like it's worth a shot?
Maybe I missed this but is your rad new or old, my jeep overheated and I checked everything top to bottom replaced hoses were rotted out, thermo, new pump blew a hole in the casing. What fixed my problem was taking the rad to a shop and having them rod the tubes out and clean it out good. Don't just get it boiled out I did that also and didn't help. The rodding did.Like you Im not buying the condensor story. Even though the thermostat is new it wouldnt be the first Made in China part to be faulty. I would take it out and make sure its rated to open at the proper temp. If it is Id take it into the kitchen and drop it in a pot of water on the stove. Then Id heat the water and with the wifes thermometer ( Dont try while shes there ) see if it opens at the correct temp. Also look for a radiator hose that collapses at temp. That'll cause air pocckets in the radiator. Not likely if they were replaced though.
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