Author Topic: Cast iron head crack repair?  (Read 609 times)

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frogeye

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Cast iron head crack repair?
« on: 25 May, 2018, 13:24:31 »
Have a small crack in the cast iron head of my b31, near the pushrod access cover. Does this old iron lend itself to weld repairs?

AWJDThumper

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Re: Cast iron head crack repair?
« Reply #1 on: 25 May, 2018, 13:32:02 »
Simple answer is not normally. You might make the situation worst trying to weld it. Do you have a photo of the crack?

Bess

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Re: Cast iron head crack repair?
« Reply #2 on: 25 May, 2018, 14:02:31 »
Hi,
    Depends where the crack is and if its load or pressure bearing.

Use crack detection fluid and developer to find the extent of the crack. If possible drill a small hole at the end of the crack to stop it migrating then fill the crack with braze.

Best wishes...