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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 09-07-2009, 11:52 PM   #1
RETed
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Originally Posted by Silver86 View Post
i did get 3 decent pulses on the front rotor... and only 2 on the rear... that was also 3 years ago.
Only 2 on the rear might mean just a stuck side seal.
Try soaking the rear rotor in ATF or MMO or whatever your fav is.
1 good and 2 bad / no pulses is indicative of a bad apex seal and guarantee a rebuild.

If it's a stuck side seal, there's a chance you could resurrect the engine without opening it up...


-Ted
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because you're only as good as your backup
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Old 09-08-2009, 03:16 AM   #2
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Quote:
Originally Posted by RETed View Post
Only 2 on the rear might mean just a stuck side seal.
Try soaking the rear rotor in ATF or MMO or whatever your fav is.
1 good and 2 bad / no pulses is indicative of a bad apex seal and guarantee a rebuild.

If it's a stuck side seal, there's a chance you could resurrect the engine without opening it up...


-Ted

how would i go about positioning that side of the rotor down so itll soak? crank the engine by hand?

err i worder that wrong... how would you do it Ted?
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Old 09-08-2009, 01:32 PM   #3
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Yeah, crank by hand.
I typically use the 19mm bolt in the center of the main pulley.
I'll pour the liquid via a hose and funnel through the leading spark plug hole(s).
Crank just enough just to get the liquid to go through.
Don't crank it too many times, and it starts to get spit out the exhaust.
Allow to soak 24 hours or overnight.
With ATF, it should fire up.
Just be warned that ATF burning causes a HUGE SMOKE CLOUD.
It'll take a few minutes to burn off.


-Ted
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because you're only as good as your backup
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Old 09-08-2009, 02:09 PM   #4
Silver86
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Quote:
Originally Posted by RETed View Post
Yeah, crank by hand.
I typically use the 19mm bolt in the center of the main pulley.
I'll pour the liquid via a hose and funnel through the leading spark plug hole(s).
Crank just enough just to get the liquid to go through.
Don't crank it too many times, and it starts to get spit out the exhaust.
Allow to soak 24 hours or overnight.
With ATF, it should fire up.
Just be warned that ATF burning causes a HUGE SMOKE CLOUD.
It'll take a few minutes to burn off.


-Ted
easy enough... any particular brand of ATF? not sure if i can find MMO in my area.
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Old 09-09-2009, 07:57 PM   #5
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Buy any of "cheap" ATF.
Don't buy the stuff that's specific to one model - i.e. Honda.
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