crack testing engine block question

pzs · Post by **pzs** » Sun May 25, 2014 7:44 am

How is this done, do both halves need to be bolted together, or can the blocks be test in halves? I am looking at taking the the block to be honed and tested with the heads, next time I go to Adelaide

Post by **TOONGA** » Sun May 25, 2014 11:22 am

If it was a steel block you would magnaflux it...

but as we have aluminium blocks in subarus they would use dye penetrant inspection

TOONGA

Magnafluxing

http://www.youtube.com/watch?v=R-yXb5nO_Kg

Aluminum block crack detection techniques

http://www.youtube.com/watch?v=109-Uzu2ihw

pzs · Post by **pzs** » Mon May 26, 2014 6:52 pm

Thank you, I will look into trying it out myself

RSR 555 · Post by **RSR 555** » Mon May 26, 2014 7:28 pm

Never seen any Subaru blocks crack, so doubt you really need to worry about it. Even on the most heavily used rally cars the only issues with the blocks is the separation on bore sleeve. As long as the block is clean and oil free, then I'd just use a can of white DyMark Flawchek near the top of the bore.

pzs · Post by **pzs** » Tue May 27, 2014 7:07 pm

Excellent, I'll research that product, thanks you saved me some work