993 TT minimum leak down numbers
Nordschleife Master
Joined: Jan 2003
Posts: 8,498
Likes: 28
From: North Dakota
Chris,
See post #39, where bb993tt posted a link to a PPI procedure used by "Real Mean Garage" In Sunnyvale, California. Bob Grigsby, I think. They do a compression test, and then only if suspicious, do they do a leak down. This shop is considered tops in the bay area. That is why it might be interesting to get their take on your conflicting numbers. I will add that I have the highest regard for the guys who did your PPI at Schneider AutoHaus.
See post #39, where bb993tt posted a link to a PPI procedure used by "Real Mean Garage" In Sunnyvale, California. Bob Grigsby, I think. They do a compression test, and then only if suspicious, do they do a leak down. This shop is considered tops in the bay area. That is why it might be interesting to get their take on your conflicting numbers. I will add that I have the highest regard for the guys who did your PPI at Schneider AutoHaus.
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,037
Likes: 5
From: Southern Maryland
Thanks Steve, I did go to their site and I will call them. My dilemma is I don't understand how the leak down number could be so awful with good compression numbers. I'm off to the phone before they close for the weekend.....Chris
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,037
Likes: 5
From: Southern Maryland
I just called RMG. They said a bit of carbon can become dislodged with the removal of the spark plug and get between valve and seat if the piston wasn't perfectly tdc. When I told them who did the PPI they doubted that such a mistake was made, but it might be worthnwhile to run the car and retest the offending cylinder. I then called the owner, a
Prince IMO, who said he had ready told them to remove the engine and make the necessary repairs. At this point I'm thinking Checker Marathon just to make it stop!....Chris
Prince IMO, who said he had ready told them to remove the engine and make the necessary repairs. At this point I'm thinking Checker Marathon just to make it stop!....Chris
Nordschleife Master
Joined: Nov 2009
Posts: 5,076
Likes: 467
From: Toronto & Mont Tremblant
+1. No expert but find it odd such a low mile car could have this problem?
