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Mazda RX-7 Starting in the 1970s, the uniquely powered RX-7 helped put Mazda on the performance car map.

Will Thomas

   
Old Jun 29, 2010 | 08:24 PM
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I am in the process of renewing a 1985 RX 7. I am having troubble getting the engine to run smooth. I have done a complete tune-up and replaced the gas. It still runes very rough. What else can I do?
 
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Old Jun 30, 2010 | 03:46 AM
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Check for a clogged catalytic converter, or an EGR valve that is packed w/carbon.
Also, has the carb been rebuilt/replaced?

 
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Old Jun 30, 2010 | 07:20 AM
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First question...
Is this a 12A, or 13B engine?

-Sheldon.
 
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Old Jun 30, 2010 | 02:28 PM
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Good question! Did they offer both in '85?
I "***-u-me-d" 12A w/carb, of course. I thought FI, and the 13B came in '86?
 
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Old Jul 1, 2010 | 07:42 AM
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Yep ^^.
 
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