5 cyl interference

[Joshua Van Tol]

>I saw all the responses from the other listers.  I concur the 10V turbo is an
>interference engine - I have repaired one where the valve contacted the
>pistons by cranking the engine with the starter.
>As a kid growing up with small block chevy V8s which had valve reliefs
>machined into the pistons,  I could never understand the reason the German's
>would not use them also.  The small difference in ultimate engine performance
>could not possibly be offset by the very real probability of piston valve
>contact.  I know there are people who will argue this point but my response
>is - if someone wants to consider themselves a "world class engineer" they
>should design a camshaft drive that doesn't fail instead of the current belt
>design that looks like it was stolen from a sewing machine.  I take care of
>my vehicles and change the belt more often than recommended but I can't count
>how many disappointed VW, Audi and Porsche owners I have talked to who
>experience this problem - all which could have been easily prevented.
>My .02 DM
>Jan Lahtonen  

But if you replace the belt on schedule, it won't happen either.
-- 
Joshua Van Tol -- josh at spiny.com