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What is this in my exhaust port??

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09-21-10, 11:25 PM

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RotorsRulePistonsDrool

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What is this in my exhaust port??

So i took apart my first 13b. It is the cosmo 13b-re engine btw. Inside the exhaust port is this metal flange. Is this some sort of exhaust diffuser made for the cosmo? The reason I ask is that I am goingt omild streetport the engine and I wanna know if this needs to be taken out and put back in or do i cut it out while porting? or... please helpm rebuild coming soon as I know.

here's the pic:

Last edited by mar3; 09-22-10 at 12:40 PM. Reason: Trimmed post to simply the question...

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Old

09-22-10, 12:42 PM

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mar3

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Thread released so rebuilders can weigh in with the facts.....and at 104 posts, ya really oughtta be posting in the real tech boards.

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