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Title: Cast iron head crack repair?
Post by: frogeye on 25 May, 2018, 13:24

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?

Title: Re: Cast iron head crack repair?
Post by: AWJDThumper on 25 May, 2018, 13:32

Simple answer is not normally. You might make the situation worst trying to weld it. Do you have a photo of the crack?

Title: Re: Cast iron head crack repair?
Post by: Bess on 25 May, 2018, 14:02

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...

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The BSA Workshop => Singles => Topic started by: frogeye on 25 May, 2018, 13:24