Usually, this is caused by the muffler being incorrectly installed or
the entire exhaust being miss-aligned. The tail pipe outlet should be at
~7 o'clock when facing it and the tail pipe should be facing slightly
down.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Tim Kasher
Sent: Monday, June 27, 2005 10:35 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Muffler knocking on Van

I noticed a wierd sound the other day and I finally figured it out...it
is
my muffler that when the engine runs a little rough at times it makes
the
muffler tail pipe come up and hit the van.  Thought I had an engine
knock
but it is my muffler just knocking the fiberglass.

So now my ? is do you think the whole engine may be loose somwhere (like
tightening a bolt)because the whole engine seems to shake a little when
this happens.

Also it only happens at turn off of the Van and at certain times during
idleing?