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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

 
 
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Old 04-13-2011, 10:43 PM   #11
RETed
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Join Date: Mar 2008
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RETed will become famous soon enough
I see the tear - it's trash; replace it.
The system has to be airtight - a tiny leak like that will compromise it's effectiveness.

15psi is about as high as I would go.
20psi is way too much pressure - in fact, most cooling system will start to leak all over the place.
Remember, the stock radiator cap is only rated to 0.9 bar(?), which is like 13psi.

15psi drops to 14psi is okay in my book.
This pretty much eliminate a major water jacket o-ring failure.

Replace the cap...
Burp all the air out of the system...
I think your engine should be okay...
Cross fingers!


-Ted
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because you're only as good as your backup
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