time for rebuild? or am i just a hypochondriac?
i have an '82 rx7 and, the other day, i went and drove the dragon with a few buddies, and the car did wonderful, nothing bad ever happened... but then yesterday i went to drive it to work, and it ran ok for about 5 minutes, then ran like poo. has done so ever since. i figured out that the issue is within the front rotor. i checked about everything i know to check.. timing, spark, fuel, fuel filter, spark plugs. the spark plug for the front rotor had some carbon build-up and was really wet with oil, but didnt smell too bad of gas. one thing i did figure out, is that i can unplug both plug wires from #1 rotor and the engine doesnt change. tried starting it today, still runs like poo... time for rebuild?
dead rotor - YouTube |
The engine will still run on one rotor. Try cleaning out some carbon with seafoam then checking compression i believe it sould be around 95 or above. You may be able to check your seals if you look through the plug holes also.
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Originally Posted by FBlife
(Post 11470550)
The engine will still run on one rotor. Try cleaning out some carbon with seafoam then checking compression i believe it sould be around 95 or above. You may be able to check your seals if you look through the plug holes also.
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Remove the four spark plugs and turn the engine over, If a rotor is bad, you can hear the uneven weazing .--->time for a rebuild. As a last resort, try seafoam/atf treatment.
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can you do that by yourself? lol i normally dont have anyone at the house to help, but i guess i could do the "wheeze test" by sticking my head out the door...
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Swap your ignitors around. The leading may have died. Sounds like you getting no spark on leading maybe.
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I'm getting spark on leading and trailing, even on both rotors.. I'm probably going to pull the manifold and check out the apex seals, if I can see them.
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Originally Posted by midnight mechanic
(Post 11470613)
Remove the four spark plugs and turn the engine over, If a rotor is bad, you can hear the uneven weazing .--->time for a rebuild. As a last resort, try seafoam/atf treatment.
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Well... I'm pretty darn sure it rebuild time.. did a compression check and the rear rotor had 3 good pulses of about 70psi, but the front only had one pulse and it was only about 25-30 psi. Oh and the plugs on the front rotor were wet with oil, not just black.. that's what scared me to begin with lol
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Sounds like we have a similar issue. AKA broke-as-fuck engine. :)
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Originally Posted by Starfox07
(Post 11472223)
Sounds like we have a similar issue. AKA broke-as-fuck engine. :)
but!!! i may be selling the 350 i built for my s10 tomorrow, so ill be like halfway there for the rebuild kit lol |
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