I was a num nut and accidentally broke off a piece of the block when trying to remove the timing chain cover. The bolt was hiding about midway up the cover on the firewall side. I should have been more patient as I was trying to jostle it free. It snapped like a twig. Am I toast or do you think this can be fixed? I am worried that without the pressure of that bolt holding things together in that corner that there will be a big oil leak. The whole purpose for doing this was to fix some seepage from the gasket that had worn down over time.

 

Spray the block area and the broken piece with brake clean... then honda bond it back in place as you install the timing cover. Maybe you can get lucky.

 

call local auto wreckers get a new cover its going to be a hassle for you to reinstall have it leak and remove it again.....

 

The piece pictured is broken off from the BLOCK and not the timing chain cover... so are you suggesting that the OP replace the block instead of take a chance on patching up what he already has ?

 

your correct my mistake

if it were my car id be expecting to replace the block before covid engines could be fairly cheap used probably not now

I used jbweld on an aluminum carburetor on a float tower on a dirt bike years ago it worked for years soaked in gasoline but did not have a bolt threaded into it

any way to make that hole deeper in the block and get a longer bolt so the threads have something solid to grab? if doing that make sure you don't wreck something else

there may be a product to "glue" aluminum back together