Xel

Test drove an 87 5ktq for sale today. has 192K kms on the clock. It was a backup car for the owner so it didn't get driven much. The engine ran with a little clunking kinda sound. Not very loud, but not how it ran on my old 200t. When I drove it pulled pretty nice. The owner said that usual boost is 1.3 bar but sometimes it wnt up to 1.5/ When I test drove it hill it would take off at 3K rpm, so I am guessing the turbo is still in good shape. That clunking noise in the engine is what I don't really like, so I was going top do a compression check and see if it is still good. I know that it should be consistent number through out all 5 cylinders, but what would a good number should be? What was it for a brand new engine?

I love booooost

TIA

Adam Mowafy

According to my bentley manual the limit for comression on this motor is 94.

So if it's any lower than that....ehhhh no

I'm not sure but nornmal might be around 120?

remember to open the throttle all the way when doing the test otherwise you will get a false reading. Just pull the coil wire off so nothing fires...

boxerfan

about 125 to 126 I believe... but don't hold me to it. Most importantly you don't want the readings to fluctuate wildly from cyl to cyl. +/- 1 is OK from what I've been lead to believe.

Cheers;

Boxerfan

Xel

<center><img src="http://members.shaw.ca/mlovas/audi/DSCF0016.JPG"></center><p>

boxerfan

you're welcome... thank you too.

Adam Mowafy

you dont want a diffrence of more than 10 between cylinders.....

treehunter

Heyyyyy, is this the one in the van buy-sell for $1900? You gonna buy it? Owner mentioned a parts car too...

treehunter

Could it be a busted motor/tranny mount?

cuatrokoop

Rusted cat. conv. hangers (they are metal brackets), bad motor/trans mounts (any of the 5), bad alt. bushings, all sorts of stuff can make a rattle/clunk.

Xel

by the time I made up my mind(6 hours later) and gave him a call back, he said that somebody bought 2 hours after I left, lol

Oh well, gonna keep looking :-)