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

Bad motor with NO SMOKE???

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Old Oct 2, 2005 | 04:31 PM
  #1  
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From: Spring Hill TN 37174
Bad motor with NO SMOKE???

I bought this vert. It will be really nice when I get done with her. The car starts right up, idles, and runs smooth, it just has absolutely NO power at all and the oil pressure is in the negative and never moves. I have another motor to go in her but would like to not replace it if it doesn't need to be..

Like I said it fires right up doesn't smoke at all, not white or blue. Previos owner claims no compression on rear rotor which makes sense. But i have never had one NOT smoke when the motor was toast.

Anyways any comments or suggestions? I added a few pics... And one of my yard... lol.
Attached Thumbnails Bad motor with NO SMOKE???-000_0226.jpg   Bad motor with NO SMOKE???-000_0228.jpg   Bad motor with NO SMOKE???-000_0229.jpg  
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Old Oct 2, 2005 | 04:41 PM
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i wish i had that many 7's

very looks pretty nice, i guess id amke sure that nothing is clogged (cats and intake filter)
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Old Oct 2, 2005 | 04:57 PM
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ummm...I'd do a compression check.
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Old Oct 2, 2005 | 05:00 PM
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Originally Posted by Makenzie71
ummm...I'd do a compression check.
Yeah, it doesnt take very long and its pretty easy to tell if its bad.
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Old Oct 2, 2005 | 05:54 PM
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Cool

It's probably due to a broken oil pressure sender and no power is probably associated these cars being... you know.. old and torqueless but, Yes do a compression check, only sure way.
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Old Oct 2, 2005 | 06:12 PM
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Well as per the last picture I am aware of the old and torqueless part, but this is far from just old. 70mph top speed... 0-60 in about 2 minutes.. Guessing bad seals. But I was trying to get a general thought on weither it was worth MMo-ing it or just pulling it and saying screw it. Stuck seals may have caused the 0psi reading... I was just surprised that it doesn't smoke. It only has 114K on the clock too....
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Old Oct 2, 2005 | 08:52 PM
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make sure the oil pressure sender is hooked up, and not super dirty. My friends OPG didnt work because the sender's connector slipped off.

These are probably stupid question to ask you, but, is it the original clutch, could it just be slipping to no end?

Sticky/hard throttle body.

Try seafoam?
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Old Oct 2, 2005 | 09:10 PM
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I've had a blown motor that didn't smoke.
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Old Oct 2, 2005 | 09:23 PM
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my blown motor did not smoke also.
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Old Oct 3, 2005 | 12:42 AM
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Mine either. By the way Trevor, I heard you go that vert for a few hundred? True? If so and you want to get rid of it, PM me.
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Old Oct 3, 2005 | 07:31 AM
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From: Spring Hill TN 37174
True. But I probably won''t be getting rid of this one.
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Old Oct 3, 2005 | 07:36 AM
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Why are you pounding on it and trying to guess what is wrong *before* doing a compression check?
I would like to see the numbers with my own eyes.
Hell, even a quick&dirty compression check just to see if you can hear "whooshes" from front and rear rotors would be nice...

You know what they say about "assume"...


-Ted
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