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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 04-21-2009, 06:40 PM   #1
rx4ur7
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Bad install, bad bearing to start with. Blocked oil passage. Anything is possible.

Yes oil pressure should usually give you some indication.

If turbo isn't coming apart not much more that can cause that kind of noise. Fuel delivery or ignition issues usually don't sound like a bad rod. Could be quality of sound on vid but sure sounds like metal on my computer.

Air pumps can make really nasty noises especially when they shuck a seal. Parts get stuck in the ACV and cause rough running. Partially blocked exhaust will cause lack of top end power, but you would notice higher water temps when run for any length of time.

If you can get a hold of the old tape compression tester to use it gives you much better read out for diagnostic.
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Old 04-22-2009, 02:29 PM   #2
djmtsu
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Quote:
Originally Posted by rx4ur7 View Post
Bad install, bad bearing to start with. Blocked oil passage. Anything is possible.
Don't think that is it. I stand behind the company that built my engine, and it has ran FLAWLESS until now.

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Yes oil pressure should usually give you some indication.
And my Oil Pressure is spot on.

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Originally Posted by rx4ur7 View Post
If turbo isn't coming apart not much more that can cause that kind of noise. Fuel delivery or ignition issues usually don't sound like a bad rod. Could be quality of sound on vid but sure sounds like metal on my computer.
I am thinking that clunking is something else, like something banging because the engine is shaking so much. It isn't that loud in person. I might need to look into some new motor mounts. LOL.

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Originally Posted by rx4ur7 View Post
Air pumps can make really nasty noises especially when they shuck a seal. Parts get stuck in the ACV and cause rough running. Partially blocked exhaust will cause lack of top end power, but you would notice higher water temps when run for any length of time.
No air pump, infact I have never had one on this car.

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Originally Posted by rx4ur7 View Post
If you can get a hold of the old tape compression tester to use it gives you much better read out for diagnostic.
When I bring it home, I will look into it more. Starting with replacing the coils, and checking the injectors harness, and the injectors themselves.

The only good thing is, if it is toast I will make it better next time.
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