Results 1 to 9 of 9

Thread: 13b Compression

  1. #1

    Default 13b Compression

    I have a T2 motor that I did a compression test on. well half way. The front compression was 90+ all faces. I pulled the motor out and was going to tear it down because it was a jspec motor. is there a way to get compression numbers on the rear rotor without it being in the car? I doubt my muscles will allow me to spin the motor fast enough. I want to sell the motor and i know it's worth more of course if it's running. I previously had the motor started but had the wrong impedance injectors in.

  2. #2
    1990 mazda rx7 TII
    Join Date
    Oct 2008
    Location
    brookhaven
    Age
    39
    Posts
    321
    Rep Power
    16

    Default

    the front hub bolt is 19mm. spin that with a breaker bar.

    or... with the engine and tranny out, hook the stater up, wire it up, and zoom away.

  3. #3

    Default

    I'll wait til Rog comes over and we'll give it a spin and hopefully I can get a reading. We're not the strongest people around

  4. #4
    Slowest Car on IA David88vert's Avatar
    Join Date
    Nov 2002
    Location
    Johns Creek
    Age
    51
    Posts
    8,378
    Rep Power
    36

    Default

    You will not hand turn it and read the compression accurately. Put a starter on it, and test it properly. Also, a regular compression tester can work, but Mazda makes a special compression tester for the rotarys that give a printout. I only know of one person that owns one outside of dealership mechanics though. If you want the proper printout, PM me, and I'll give you his number.
    "Racing is life. Anything before or after is just waiting." - Steve McQueen

  5. #5

    Default

    thanks. I'll probably just sell for a couple hundred as is. motor runs I just don't have compression numbers for the rear rotor.

  6. #6
    Certified Gearhead
    Join Date
    Dec 2003
    Location
    Atlanta,GA
    Age
    43
    Posts
    990
    Rep Power
    21

    Default

    what are u all selling with it? i may be interested

  7. #7

    Default

    depends on what you're willing to spend my friend....
    as a shortblock I was looking for 260.
    longblock (will need assembly) I have all the parts, minus block off plates- 550
    T2 tranny- 250

  8. #8
    Certified Gearhead
    Join Date
    Dec 2003
    Location
    Atlanta,GA
    Age
    43
    Posts
    990
    Rep Power
    21

    Default

    hmm you said you have the comp numbers for the front but not the rear

  9. #9

    Default

    Quote Originally Posted by gottraction? View Post
    hmm you said you have the comp numbers for the front but not the rear
    yep.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
ImportAtlanta is a community of gearheads and car enthusiasts. It does not matter what kind of car or bike you drive, IA is an open community for any gearhead. Whether you're looking for advice on a performance build or posting your wheels for sale, you're welcome here!
Announcement
Welcome back to ImportAtlanta. We are currently undergoing many changes, so please report any issues you encounter with the site using the 'Contact Us' button below. Thank you!