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PPI Evaluation help

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Old Dec 16, 2015 | 12:09 PM
  #16  
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Sounds like the PPI on my '92. Not a big deal to make most items right.

FMI.....
if compression numbers are high and even, what would a leak down test tell you ? Other than parts are wearing evenly and within spec ?
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Old Dec 16, 2015 | 12:19 PM
  #17  
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It's a 1990 Canadian spec car. My question is: did these have passenger side airbags? (I read somewhere that they did starting in 1990 but the PPI evaluator said he didn't get a signal).
Concerning the airbag light, the bulb may have been removed or have burnt out because the steering wheel has been replaced by a non airbag wheel.
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Old Dec 16, 2015 | 12:23 PM
  #18  
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Originally Posted by abarthguy
Sounds like the PPI on my '92. Not a big deal to make most items right.

FMI.....
if compression numbers are high and even, what would a leak down test tell you ? Other than parts are wearing evenly and within spec ?
Check this thread....https://rennlist.com/forums/964-foru...n-testing.html
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Old Dec 16, 2015 | 12:46 PM
  #19  
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Tires from 2004 and still 'good'? PASS.

50K car, and people can't be bothered to put nice tires (the most important thing) on the car. I would walk away in disgust.
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Old Dec 17, 2015 | 02:54 AM
  #20  
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Originally Posted by Ken D
In that thread, Steve Weiner states that the subject cars compression numbers are even, so the motor is good. If there was a low cylinder, a leakdown test would tell if it is valves or rings.
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Old Dec 17, 2015 | 07:36 AM
  #21  
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Originally Posted by abarthguy
In that thread, Steve Weiner states that the subject cars compression numbers are even, so the motor is good. If there was a low cylinder, a leakdown test would tell if it is valves or rings.
His full reply:

Originally Posted by Steve Weiner-Rennsport Systems
Mauro,

I can't offer you much on the compression values since there are too many variables that affect the test results; this is why we ONLY do leakdown tests any longer.

That said, your numbers are very close to each other suggesting the engine is OK.
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Old Dec 17, 2015 | 09:26 AM
  #22  
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If this is a Porsche specific shop I am surprised to see comments like tire tread good but tires from 2004. They should state they need replacing due to age irrespective of tread depth. Too many yeses and not enough specifics like rotor thickness and other cosmetic potential issues.

Otherwise looks like it is worth a closer look.
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