[urq] kevlar timing belts

[David Ritter]

I think the real answer on the 10V WX Urq is "sometimes interference". You
could pop the belt and get lucky, or you could bend some stuff. I believe
that it has gone both ways in the past.

I did the timing belt, balance belt, water pump, rollers and idlers on a 87
924S this summer. I'll email you a bit more on that one off the list.

Dave

On Tue, Sep 3, 2013 at 3:11 PM, Schaible, David <
David.Schaible at jrspharma.com> wrote:

> I believe the wx is an interference engine yes. I know the 20v is ?   I
> know the 944 I have is, the timing belt I have on there is in good shape
> with low miles but is almost 10years old.  Any opinions on replacement?
> The last quote was $2500 for the job so this is going to be a DIY.  Is
> anyone running a Kevlar timing belt?   the opinions on the Porsche forum
> vary and don't seem to be based on any real knowledge or experience.  The
> mk4 tdi timing belts for the 1.9l went from 60k to 100k interval during
> their production by a belt and increased size pulley change but the belt
> was not Kevlar.
>
> Is it really worth it to make interference engines with the potential
> downsides?
>