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coolant leak between head and block at head bolt location.

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coolant leak between head and block at head bolt location. Empty coolant leak between head and block at head bolt location.

Post  Kobelco November 9th 2021, 12:49 pm

I think one of my lower head bolt holes has a crack\pin hole etc, block and head are straight not even .001 warpage. It was pushing coolant between head and block when warmed up. Head gasket (fel pro 1018) seal rings are complete no tears. I see rust in the cavity for bolt in head so coolant getting up there. Chased the threads with a thread chaser very clean. I attempted magnaflux the bolt hole see nothing. I don't have access to a pressure tester.

Use RTV or pliable thread sealer?  On non blind threaded holes( BBC, 302) I always use Loctite 567 with good results I just wanna do this "repair" once.
Anyone experience this?

Kobelco

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Join date : 2019-02-21

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coolant leak between head and block at head bolt location. Empty Re: coolant leak between head and block at head bolt location.

Post  dfree383 November 10th 2021, 10:19 am

I’d try some sealer on that bolt and maybe spray copper the gasket.
dfree383
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