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Diesel engine overheating


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eng.moh.4u
New User

Jul 26, 2017, 11:21 AM

Post #1 of 2 (311 views)
Diesel engine overheating Sign In

I have engine overheating when working on hot weather. I checked everything(Thermostat, Hoses, coolant, pump, Radiator, Fan) all ok.

when the temp rises over 95C I spill water on radiator then the temp go down to 80C. Also when I feel radiator hoses I found that it is over pressurized. Also no gasses coming out at the top of radiator so I think head gasket is ok.

any body have any idea what is this should be?


(This post was edited by eng.moh.4u on Jul 26, 2017, 11:21 AM)


Discretesignals
Ultimate Carjunky / Moderator
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Jul 26, 2017, 1:07 PM

Post #2 of 2 (298 views)
Re: Diesel engine overheating Sign In

Year, make, model, and engine size?

95 C is around 203 F. That doesn't seem like an overheating issue.

The hoses are going to be pressurized when the coolant system is hot. The pressure (controlled by the radiator cap) keeps pressure in the system to lower the boiling point of the coolant.

Of course spraying water on the radiator is going to be a lot more efficient at heat transfer than air blowing through the radiator, that test may be inconclusive.

Does it supposedly overheat sitting still, cruising, idling, high speed??





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