Quote:
Originally Posted by Dieselwrencher
Yep, that's it. I'd take it to a machine shop and have it magnafluxed. It's better to find out now rather than later.
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Are those the heads with the 9mm injector bores? If so, the Cummins service manual says that they are fine to use as long as the crack doesn't go through the valve seat and if it does then just have a valve seat insert installed.