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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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#3 |
RCC Addict
Join Date: Mar 2008
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You can typically knock off this kinda of "surface rust" with some light oil and a fine grit sandpaper.
This should not affect compression in any way. This is the good news. The bad news is that Mazda gas-nitrides those surfaces for wear. Rust will usually eat through this gas-nitride surface, causing accelerated wear on the housing. -Ted |
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