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

DIY motor build horror stories

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Old Sep 8, 2010 | 09:19 AM
  #26  
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Originally Posted by DemonicPupil
I've got 35+ pulses on all 6 faces.. 120+ psi on both rotors. Looking forward to loading the **** out of it and finding out what didn't hold together so well =).
Whaaa...your getting 35 pulses on all 6 faces? Dude...you should only get 1 'pulse' per face.
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Old Sep 8, 2010 | 02:21 PM
  #27  
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What are the "pulses" per face? Sorry guys I really don't know what that phrase means..
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Old Sep 8, 2010 | 02:31 PM
  #28  
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Originally Posted by Poker Player
What are the "pulses" per face? Sorry guys I really don't know what that phrase means..
basic compression test...

pull a spark plug, turn the crank, listen for a "pulse". should be 3 per side.
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Old Sep 8, 2010 | 02:35 PM
  #29  
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I think he meant 35 psi on all 6 faces lol
But even then...I pulse at 90psi on my front rotor....85 on my rear....

isnt 35 low
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Old Jun 25, 2011 | 01:03 PM
  #30  
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I installed the CAS gear upside down.. took me 2 years and a 3rd rebuild to figure that out.
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Old Jun 26, 2011 | 06:05 AM
  #31  
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Fresh rebuild and the "stock" ports the original irons had ate a side seal. Cleanly took out every seal on that side, and costed me a rotor. Atleast the brand new housings didnt get harmed, i would have shot myself.
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Old Jun 26, 2011 | 03:07 PM
  #32  
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Originally Posted by RevinRx7
I installed the CAS gear upside down.. took me 2 years and a 3rd rebuild to figure that out.
Holy crap. I remember being a little confused when I first read about the orienting the beveled side but man that sucks.
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Old Jun 26, 2011 | 11:12 PM
  #33  
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I forgot sealant on the "legs" of 3/4 housing faces.

Then it just popped an oil cooler line off while idling in the garage, apparently the push-lok hose wasn't all the way onto the fitting. Ever see 4 quarts of oil sprayed all over a bunch of kids toys? Not pretty. Lol.
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Old Jun 26, 2011 | 11:28 PM
  #34  
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damn. Just what i want to read before starting my rebuild! lol I never rebuilt a rotory but have a 300zx build and many honda motors under my belt.
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Old Jun 27, 2011 | 10:27 AM
  #35  
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From: https://www2.mazda.com/en/100th/
Originally Posted by papiogxl
I forgot sealant on the "legs" of 3/4 housing faces.

Then it just popped an oil cooler line off while idling in the garage, apparently the push-lok hose wasn't all the way onto the fitting. Ever see 4 quarts of oil sprayed all over a bunch of kids toys? Not pretty. Lol.
it moves a lot of oil really quick!
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Old Jun 27, 2011 | 12:50 PM
  #36  
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best one i've done is a corner seal boot popped out while putting the rear iron on, the seal managed to get stuck right between the rotor housing and iron. when i pulled it apart there was an apex seal corner seal boot pressed flat into the rotor housing..
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