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Old 05-02-2017   #1
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Cracks in valve tappet cup bores. Fiat 126, 652cc.

Hello.

Has anyone ever encountered cracks in the bored where the valve tappet cups are supposed to go. I was cleaning my engine block when I noticed them, I can even feel them with my fingernail.

How much of a problem is it? There seem to be no oversize valve tappet cups availible anywhere. Also, the cracks dont seem to continue on the chamfered part so I'm thinking they might not be very deep.

Sorry for the bad quality of the pictures. Thanks in advance.
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Old 05-03-2017   #2
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Re: Cracks in valve tappet cup bores. Fiat 126, 652cc.

I can't actually see any cracks. You could get them recut by a machine shop. As long as the seals seat properly I wouldn't think it will be an issue as the tubes just need to be sealed to prevent oil leaks
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