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Old 04-20-2015, 08:22 PM   #1
appleburger
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Default Hairline cracks in block or casting imperfections?

I picked up a 2.5 block with the intention of rebuilding it and eventually putting it in my bugeye. On closer inspection I found what look like hairline cracks in the bottom side near the crank. The closer I look the less I can tell if these are actual cracks caused by stress or just imperfections in the casting. I don't have a lot of experience with the EJ's yet so I don't know if this is common or not. Haven't been able to find any similar issues searching around.

It doesn't seem like a place of high stress where a stock motor would crack. Hoping maybe someone has seen this before and can shed some light. Just wondering if its worth rebuilding or if its scrap. Any insight is much appreciated.




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Old 04-20-2015, 09:14 PM   #2
wrxhard
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Spray with carb clean and blow it off. If it continues to seep out, obviously a crack/cracks.

Looks like casting flash though
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Old 04-20-2015, 09:47 PM   #3
04ScoobyWtf
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Old 04-21-2015, 01:01 PM   #4
appleburger
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Awesome! Thanks guys.
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Old 04-21-2015, 02:25 PM   #5
TeddyK
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If the carb cleaner is too volatile use 70% Iso-propyl alcohol, as it might allow better bleed-out, or you could go all out and buy some Magnaflux liquid penetrant.
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Old 04-22-2015, 01:38 PM   #6
wrxhard
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Good call on the iso teddy
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