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

few quick rebuild ?'s

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Old Oct 13, 2005 | 01:13 PM
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few quick rebuild ?'s

1) is it pretty common that i will have to buy a new housing or rotorfor the rotor that lost its compression

2) what tools are required that everyone keps refering too but never saying

Thanks for the help
Dennis

btw 86 n/a
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Old Oct 13, 2005 | 02:16 PM
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It depends on what happened. If you popped an apex seal and drove it for a while after it happened, then you will prob need at least new housings, and maybe a new rotor. If you stopped immediately once it happened, you might get away with just resurfacing. You really cant tell until the motors apart.
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Old Oct 13, 2005 | 02:27 PM
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have you taken it apart already? if so, do you have pix?

edit: as far as tools go, for disassembly, a dowel pin remover is a life saver, as well as a good impact gun-ive delt with some VERY stuck tension bolts before. pilot bearing remover and flywheel nut wrench are also helpful.
you'll also want a flywheel stopper, clutch alignment tool, if your dont already have one, a rotary engine stand adapter. hylomar is useful when putting the seals in.
tools can be found here: http://www.mazdatrix.com/toolmisc.htm

are you doing a stock rebuild or dong any sort of porting?

post pix of the process to let us know how it goes

Last edited by RXgirl7; Oct 13, 2005 at 02:32 PM.
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Old Oct 13, 2005 | 02:33 PM
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if it has lost compression plan on it needing a rotor and housing for that side, if either is usable then you will come out ahead.
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Old Oct 13, 2005 | 02:51 PM
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engine is not apart, bought the car not running in belief that something else was wrong (it sat for about 4 years before i got it) so maybe just sat too long and evrything is still good?

comp test is pending to tell exactly what the problem is
and i plan on street porting it since im in no rush because its not my daily driver

thanks for the info

Dennis

edit: the full story on the car is that it sat for a while, and ran before it sat as far as i know, when i got it, it did not run at all, the fuel pump was shot, changed it and still had problems till i posted vids of it running on here and was told it had lost compression on a rotor

Last edited by kanuk93gt; Oct 13, 2005 at 03:03 PM.
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Old Oct 13, 2005 | 03:27 PM
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Its possible that its only running on one rotor for another reason. Plugs bad, injectors not firing, etc. It might not have a bad rotor after all. Compression tests are fairly easy to do, at least to check if a rotor lost compression. Get a regular compression tester at auto zone, stick it in the spark plug hole, and see if the nnedle jumps. If it barely moves, then the rotor is shot.
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Old Oct 13, 2005 | 03:45 PM
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ok, going to do that tommorrow morning, will keep you guys posted
thanks
Dennis
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Old Oct 14, 2005 | 10:45 AM
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compression test results: 90 psi front rotors, 0 psi rear rotor
guess its time to tear it down
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Old Oct 14, 2005 | 10:56 AM
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Originally Posted by kanuk93gt
compression test results: 90 psi front rotors, 0 psi rear rotor
guess its time to tear it down

no arguing with those numbers...

good luck and keep us informed!
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Old Oct 14, 2005 | 11:04 AM
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ok will do
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Old Apr 7, 2006 | 11:46 PM
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Originally Posted by RXgirl7
no arguing with those numbers...

good luck and keep us informed!
http://www.cardomain.com/ride/2288266/2
the pix kinda tell the story

got 2 housings with 70k or less on them, and a new rotor, gonna begin porting 2morrow, and getting a full rebuild kit from Atkins as soon as finances allow

thanks
Dennis
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Old Apr 8, 2006 | 12:06 AM
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those damn rear rotors always going out. haha i bought mine with a bad motor too and when i took it apart my rotor was good, seal still intact but the housing had a nice gawg going around it.
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Old Apr 8, 2006 | 12:50 AM
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Originally Posted by Phantomkid
those damn rear rotors always going out. haha i bought mine with a bad motor too and when i took it apart my rotor was good, seal still intact but the housing had a nice gawg going around it.
tona of other parts need to be repaced on mine, i sure hope i like driving it whens its done, cuase if not i just wasted a ton of change on it
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Old Apr 8, 2006 | 03:07 AM
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can you do a rebuild without a dowelpin puller? flame me if you want as long as i learn how to do it right.
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Old Apr 8, 2006 | 10:56 AM
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Originally Posted by REnder
can you do a rebuild without a dowelpin puller? flame me if you want as long as i learn how to do it right.
a couple of mine slid right out, prolly still a pain not to do it w/o one tho
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Old Apr 8, 2006 | 01:31 PM
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Nasty.






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Old Apr 8, 2006 | 01:36 PM
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getting replaced
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