I have a 2000 60 series thats getting pressure in the cooling system, no oil in water or water in oil, and bypassed air compressor so thats not it either. I pulled the head and cant find the gasket being bad. Wondering what I should be looking at instead
60 series coolant pressure building, what is causing it?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 9200detroit, Nov 22, 2021.
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Any air operated HVAC controls on the truck?
Big Road Skateboard and Magoo1968 Thank this. -
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Guessing no fuel was mixing in oil or coolant?
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No cant find any fuel in oil or coolant
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I had 1999 S60 that was rebuilt at 1.1 million miles. They put a rebuilt head on as part of the job. After two week it was blowing coolant out the plastic holding tank. But only when pulling a big hill and engine would get up to 208+ F coolant. Took to another Detroit Diesel shop, they had put truck on Dyno and simulate pulling a hill. They found the rebuild head had a crack the only open when coolant was 208+F
little cat 500 and Rideandrepair Thank this. -
The gasket was intact when you pulled the head? I can’t understand how you can tell it wasn’t leaking. Check the liner heights. I think it’s .01-.05 thousand, with no more than .02 between 2 adjacent cylinders. Get the head pressure checked. Might as well do an inframe now.
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Check liner protrusion and have the head checked for cracks while its off.
Rideandrepair Thanks this. -
Ending up doing an inframe, anyone got any info on pai brand kits, are they good and where are they made. Thanks
Rideandrepair Thanks this. -
Last edited: Nov 29, 2021
RubyEagle Thanks this.
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