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

90-60 compression

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Old Nov 7, 2004 | 11:35 PM
  #1  
MOBEONER's Avatar
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90-60 compression

i just bought this t2 engine tranny,ecu and wire harnest for $450.
i wanna sawp this onto a 1990 convertible..

i took the compression and the front rotor had 91 and the rear rotor has mid 60`s.I realy dont wanna rebuilt this engine so i would like to know if at this compression i could swap the engine and not run into starting problems...i know it should be rebuilt but i realy dont wanna...what should it do???
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Old Nov 8, 2004 | 12:26 AM
  #2  
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how long has the engine been sitting or was it pulled right before he sold it to you?

the longer an engine sits, the less reliable a compression test will be.


and if it is about the time pulling the engine, it really isn't hard to pull an engine out of one of these cars, i had the engine pulled and fully disassembled (down to the rotors) in about 3 hours on my second try with 8 months between pulling it. if it were me and a reliable seller i would put it in and see how it does unless you feel like going through it.

Last edited by RotaryEvolution; Nov 8, 2004 at 12:32 AM.
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Old Nov 8, 2004 | 12:58 AM
  #3  
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No, you will have to rebuild that motor.. around ~80psi or less is where you really should rebuild the motor. Save youself the trouble and do it the right way. You will run into starting problems (flooding).

Check out some rebuild kits, and a video if you want to save some money and do it yourself..

www.rotaryaviation.com

www.atkinsrotary.com

-Justin
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Old Nov 8, 2004 | 01:52 AM
  #4  
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of course you should rebuild any questionable engine you purchase but it really is up to the person and whether or not they want to take the chance with their money or not.
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Old Nov 8, 2004 | 08:02 AM
  #5  
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From: Orange Park FL (near Jax)
Originally Posted by Karack
... i had the engine pulled and fully disassembled (down to the rotors) in about 3 hours ....
You must be working in a full shop (compressed air, lift, lots of room, maybe some help) ?

In my driveway with hand tools, jackstands, & a borrowed hoist, working by myself, I needed around 12 hours.


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Old Nov 8, 2004 | 03:20 PM
  #6  
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i forgot to mention i have been a technician for 11 years, the time was with all handtools with the exception of an impact gun to remove the front and rear eccentric shaft bolts.


crap i forgot i did use my electric 3/8" snap-on impact gun on a few of the bolts during the engine disassembly. makita also makes an impact 3/8" that works fairly well.

Last edited by RotaryEvolution; Nov 8, 2004 at 03:22 PM.
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Old Nov 8, 2004 | 03:26 PM
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From: Freaking Poland!!
I spent about 1 1/2 to 2 hours tearing one of these engines down (already out of the car) it's not too hard.

Putting it back together is the tricky part
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