2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

why you can't rebuild a blown seal engine...

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Old Mar 18, 2002 | 07:49 PM
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why you can't rebuild a blown seal engine...

this thing has been sitting in my room for months and I finaly just took some pics for something else. this is what happens when your seal blows. by by rotor housing!!



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Old Mar 18, 2002 | 07:54 PM
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and the rotor is shot too.....


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Old Mar 18, 2002 | 08:16 PM
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I think mine was worse than that on my old car. I found chunks of apex in the precat, two rotor tips were trashed, and the housing were scuffed all over the place.

edit: I guess that driving it around the neighborhood after it died didnt help much
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Old Mar 18, 2002 | 08:22 PM
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Now that's a good reason for someone to invent the "nerf" rotor...Max
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Old Mar 18, 2002 | 10:46 PM
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When i took my last motor apart i actually saw a piece of apex seal imbeded on the rotor!..ohhh and my rotor housing was worst than the one in the picture.
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Old Mar 18, 2002 | 10:54 PM
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Hey, maybe a little ATF will help...
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Old Mar 18, 2002 | 11:27 PM
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beat these, its an overheat not, not blown seals though

this are the old housings from my 13b-rew, before my rebuild

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Old Mar 19, 2002 | 12:22 AM
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Poor pretty engine, once fresh and lively...*sniff sniff*
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Old Mar 19, 2002 | 01:48 AM
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hehe, I still have to take pictures of mine, but they're far worse The rear rotor housings was awesomely screwed up, and all three of the apex seal grooves in the rotor are trashed. There are bits of seal in the rotor, and gouges all over the place.

That must have made an AWESOME sound when it went (i bought the car used, so i didn't have the pleasure of experiencing it...)

Manolis
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Old Mar 19, 2002 | 01:56 AM
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Normally I take blown rotor housings/rotors, clean them up real good, paint the outside of the rotor housing, put the rotor inside the rotor housing, and then turn them into a clock
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Old Mar 19, 2002 | 08:47 AM
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my7.rx-7.org/PJ (so it's not an FC, but it IS blowed up ) No TRACE of the blown apex seal in the engine... every piece of it gone, but the spring was still lodged in there... you can see where it got stuck between the rotor and the housing, and it actually punched a hole in the rotor face in at least one spot.

I wonder... I have an engine that still has compresson on one face of the rear rotor. Given that, one would think that the rotor housing would still be good, since the two remaining seals still build good compression. Then again, maybe not. (One of these days I'll take that engine apart to see)
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