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Coolant leak after upper pan replacement

Old 12-14-2018, 07:43 PM
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Crawford842
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Default Coolant leak after upper pan replacement

Does anyone have any idea why I would have a coolant leak into the engine and around the corners of the upper oil pan after doing the upper oil pan removal and installation. I had to replace it due to cracking it from tightening up the oil pressure sensor to tightly and I didnít have an oil leak with the replacement, however I do have currently. I did not replace the two red openings so Iím wondering if maybe thatís where the coolant goes to cool the oil. Itís been along time since I started up the car and saw the coolant and have been working on it for months now so I donít remember quite where it was but I believe it was a steady drop at the corner near the oil cooler. Might have been both front corners for all I know since itís been so long. Just hoping to get some ideas before I go ahead and re-install tomorrow or Sunday

Last edited by Crawford842; 12-14-2018 at 07:46 PM.
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Old 12-14-2018, 07:51 PM
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bealljk
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Are you getting oil in your coolant or coolant into your oil?

I speculate that you forgot to install the orings between the timing chain case and the front of the block and/or the upper oil pan to to bottom of the block and/or you didnt RTV correctly between pieces.

Plan on disassembling everything and re-doing the process at sometime. Did you follow the factory service manual when you reassembled?

Load-up some pictures if you have a minute
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Old 12-15-2018, 07:56 AM
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Coolant in the oil I don’t recall getting oil in the coolant when I drained it. I didn’t remove the timing chain case. But I did reuse the O-rings between the upper oil pan and the block. Are those for coolant? I’m certain I did the RTV correctly, as I followed the manual.
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Old 12-15-2018, 11:58 AM
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It's hard to say ... the coolant system runs +/-15psi where the oil pressure is anywhere from 30-120psi.

If you want to further the diagnosis you could do a leak-down test and compression test to ensure your heads are sealing correctly/aren't breached.

How many miles on the car? any other significant work on the engine?
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