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Thread: Oil pressurising coolant system

  1. #1
    Guest nismo's Avatar
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    Oil pressurising coolant system

    Got a bit of an issue with the ca , I have oil coming out off the rad overflow. The engine is a new build with arp studs and metal head gasket. I had the head skimmed and block decked I also shortened the stud above the water pump.

    I have only ran the car on tick over to check the timing and in approx 1 minute it emptied half off the sump in to the coolant system which pressurised it and forced it out off the overflow, could my oil cooler have split?thanjs nismo .

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    Is it easy to loop the coolant lines on the cooler on the CA ?

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    It’s not easy but that’s what I will try next.

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    See if you get a big spirt of oil out of the cooler unit

    Are you sure there was no dirt or anything on the head gasket when it went on

  5. #5
    Guest R3K1355's Avatar
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    Quote Originally Posted by autosri View Post
    Is it easy to loop the coolant lines on the cooler on the CA ?
    You can do a full delete on the oil cooler if needs be.

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    Thanks for the advice and info, I have found that the cooler has ruptured as I got oil coming out when I cranked the engine. It’s time for cooler delete mod.

  7. #7
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    Anyone got tips for getting oil out off the coolant

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    drain your coolant out and put some fairy liquid in instead of antifreeze. then run it for a bit and drain that out.

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    and Flush, flush, flush & flush again.

    Some people pop the stat out and rad hoses off, then run a hose through the engine for a good few minutes.

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    Are you sure it's shorten enough?

    Sounds like it's still tightening on the thread?

  11. #11
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    Quote Originally Posted by acs View Post
    Are you sure it's shorten enough?

    Sounds like it's still tightening on the thread?
    It’s defo coming from the oil cooler.

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