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Author Topic: M90 Head Gasket leak  (Read 177 times)

Mattbower78

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M90 Head Gasket leak
« on: April 12, 2020, 06:11:54 am »
Hi all,
Is it usually common for there to be a little leak out of the cylinder head gasket? I noticed that there was very small bubbles coming out of the head when i turned the engine over, does anyone else have this problem?
Thanks,
Matt.
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yozhek

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  • Location: Somerset, England
Re: M90 Head Gasket leak
« Reply #1 on: April 12, 2020, 07:20:47 am »
Hi Matt,
I have seen this a few times on these M90s, the top of the liner sits in a recess in the block which is a tiny bit too deep to keep good pressure on the gasket. A very thin smear of gasket sealer where the gasket mates to the liner will fix it, or you could anneal the head gasket and try that (personally i had no success with this).
Hope this helps
Ade
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Mattbower78

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Re: M90 Head Gasket leak
« Reply #2 on: April 12, 2020, 12:02:34 pm »
Okay I will try that, thanks for your help.
Matt
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