1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

looks like i got some flaking...need new housing??

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Old 07-22-04, 02:15 PM
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Question looks like i got some flaking...need new housing??

ok well i got my spare motor apart to begin the street ported turbo 12a project.

and it looks like i have some flaking on the rear housing...how big of a deal is this?

also on the front, center, and rear plates. if i just bearly touch them and lap if off. will it hurt em to much. (i read that laping them will decrease life...is this true?)

what can i use to clean out all the nasty yellow/white **** in the coolant passages?? the ozzyjuice wouldnt clean it all out.

Thanks

Brad
Old 07-22-04, 08:13 PM
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the engine that was running just fine when I pulled it out after 119k of propelling my '80 around, has maybe six-seven inches of 1/8-1/4" wide flaking.

My theory is, it ran fine, so it will still run fine. I'm putting together a weirdball porting arrangement that has a slim chance of not working well, (although months/years of planning suggest it'll work great, and some SAE papers that I recently discovered showed testing of an arrangement coincidentally *very* similar to mine, and the results were *very* similar to what I am aiming for, so I feel *very* confident... But there's always that slim chance!) so if it doesn't work I won't feel bad like I would if I was using pristine housings.
Old 07-22-04, 10:38 PM
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Originally Posted by peejay
the engine that was running just fine when I pulled it out after 119k of propelling my '80 around, has maybe six-seven inches of 1/8-1/4" wide flaking.

My theory is, it ran fine, so it will still run fine. I'm putting together a weirdball porting arrangement that has a slim chance of not working well, (although months/years of planning suggest it'll work great, and some SAE papers that I recently discovered showed testing of an arrangement coincidentally *very* similar to mine, and the results were *very* similar to what I am aiming for, so I feel *very* confident... But there's always that slim chance!) so if it doesn't work I won't feel bad like I would if I was using pristine housings.
I'm intrigued. PP? Secondary PP?
Old 07-22-04, 10:44 PM
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I'm thinking partial PP. Thru the manifold coolant holes. Way too easy not to try it.
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