Re: Engine mounts

[Igor Kessel <four_rings@worldnet.att.net>]

Michael Murphy wrote:
> 
> The Monkey Lad (tm) transmission/diff repair saga (89 100, NF w/087)
> just exceeded workday #30 w/the shop mgr calling to say, "...the
> transmission/diff are now "perfect, but you've got a bad engine
> mount...".  One of their transmission "tests" was power braking and is,
> along with mount age, the probable cause of the failure.

Very probably so.

>  So I'm
> inquiring:
> 1. Should mounts be replaced as a pair (they only ordered one); and,

No.

> 2. Bentely's only mention of mounts (that I've found) indicates
>    mounts should be torqued while engine is at idle (Volume 1 10.26 -
>    Aligning engine/trans after engine removal).
> 
> Any BTDTs', about the mounts that is,

The RH mount goes first due to the turbo/EM heat soak. Visible only
after you remove it as the counter momentum squashes the RH mount down
rather than lifting it up effectively masking the mount's failure.

I did mine when I removed the head due to the cracked EM on my '89
200TQ. Mike Zamikhovsky drilled a hole in my ears insisting that I
replaced the RH mount and ordered it along with the head related parts.
Naah, I wouldn't believe, would I... Tried to save $52.
Removed the mount, it was hard as charcoal and just as charcoal crumbled
into dust in my fingers. Had to order the mount anyway, lost nearly a
week in downtime.

-- 
Igor Kessel
Two turbo quattros.