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04-05-12, 01:05 PM

OCDHerb

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Irons

I'm restoring an early RX7 12a but I can feel a small ridge on one side of the center plate where the side seals ride. How much is considered "acceptable".

Has anyone had irons resurfaced? If so, did you re-gas nitride the surfaces?

Learning a lot. Need to learn lots more.

Herb

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04-05-12, 01:08 PM

j9fd3s

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the spec is .0039", or basically if you catch a finger nail.

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04-05-12, 02:36 PM

jgrewe

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I've had a lot of them done. Never had them re nitrided, never expected the engine to last more than a couple hundred hours before I took it apart again.