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FYI... 16v Euros ARE interference motors!

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Old 04-26-2010, 10:59 PM
  #16  
R.Pires
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Originally Posted by Drewster67
Rule of thumb - treat ALL Porsche motors as if they are interference engines.

Thanks for the confirmation !!
Good advice!
That means always take care of the TB and WP, carefully respecting change intervals!
I do it on mine and, for what I knew and what I read here, I confirm my car it's a non interference.
But I'm sure a broken belt won't give any health to any car!

Regards
Old 04-26-2010, 11:02 PM
  #17  
GregBBRD
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Originally Posted by Andrew Olson
I know the institutional knowledge/memory on 16v Euros is a bit thin especially when it comes to whether or not the motors are interference motors or not. I'm here to set the record straight.

Recently one of the Detroit faithful with an 85 Euro had a timing belt failure. Many teeth were stripped from the belt, the tensioner pulley was toast, belt shavings everywhere, you get the picture.

The owner, not knowing any better, tried to restart the motor many many times to no avail.

In comes Davek9 and SueDen (Dave and Dennis) to help the poor soul. They got everything apart, rebuilt the tensioner, got a new timing belt, lined everything up and gave it a start. It ran, but ran poorly and had a definite "miss."

Today a compression test was run. Going from memory the results were something like this.

1: 165
2: 0
3: 0
4: 165

5: 110
6: 0
7: 0
8: 165

So basically, he's got maybe 3 good, 1 marginal and 4 kaput.

Let this be a lesson that 16v Euros are definitely interference engines.

Poor guy.

And for those that know the players here in Detroit, it was not Stan.
Actually, anyone who allows the cam belt to get that bad, especially on a 16V with the round tooth design, is tough to feel sorry for. Those belts, in that low load situation, have to be able to go 80,000 miles without even a whimper.
Old 04-27-2010, 01:34 AM
  #18  
Vilhuer
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All engines which do not have 45 degrees market in damper are not interference by design. But any engine can be if there is enough buildup on top of piston.



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