Elvis, I can get and have most all 7mm bolts if needed. I'm making up kits
all the time for them.If you will email what you need I will see if I can
get them. They all come out of Germany.
John Hervey
-----Original Message-----
From: elvisnocita@xxxxxx [mailto:elvisnocita@xxxxxx]
Sent: Thursday, June 12, 2003 6:11 AM
To: DMCForum@xxxxxxxxxxxxxxx
Subject: Re: [DMCForum] Changing the exhaust gasket
7mm bolts are very uncommon here in Europe, too, therefore I would
really
be
amazed if you could find good tools to repair such a thread in the
states.
But who really needs that ? tap it with an 8mm thread and it is fine,
more
reliable and the parts are available at any Volkswagen garage.
Especially for exhaust studs I would take care. Aluminum head, SS repair
thread and a zink plated stud. Then there's lots of heat and moisture.
And
of
course some kind of copper grease. ...
Go for M8 and skip the problems with M7.
My 2 cents
Elvis
> > I've read and heard horror stories about this. Is this something I
> should
> > leave to a pro or can I attempt this on my own?
>
> Travis,
>
> My answer to this is biased because I believe in doing this sort of
work
> myself no matter what it takes. I've have replaced exhaust gaskets
once
> before. It took all of one day, all night, and until about noon the
next
> day. This job had to be finished before the out-of-town owner could
drive
> it home. When I do it again, I would definitely schedule time for the
car
> to be apart for a while.
>
> All the studs come out fine on the passenger side. But 3 broke off on
the
> drivers side. Luckily these didn't break off at the surface, so I was
> able to grab and remove them with a cam-type stud extractor. I have
since
> learned that there are better/smaller extractors available. But the
7mm
> studs used on our engines are an unusual size. I think that Sears is
the
> only company that sells an extractor specifically meant for 7mm. I
have
> check NAPA and Snap-On, and their extractor sets include an 8mm and a
9mm
> but skip 7mm. Perhaps one or the other or something from an inch set
> would be close enough.
>
> I'm in the middle of a full tune-up on my daily driver and broke an
intake
> manifold bolt. I drilled it out and damaged the threads in the
process.
> I
> could have either drilled it out to the next larger size or used a
thread
> repair kit, so I opted for the repair kit. It is a 7mm x 1 which is
the
> same thread as the exhaust manifold studs. It is basically a magnetic
SS
> alloy spring. Works fine; looks great. And this is fine to use for
> exhaust manifolds, too.
>
> Walt
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