Jonce,

Thanks for your timely request for assistance with the loose exhaust bolts.  I am facing the same problem on my daily driver #4 exhaust bolts will not tighten sufficiently, now I can just read the responses to your post.:>)

Mark in AK

----- Original Message -----
From: Jonce Fancher <streetbugs@WHISPLLC.COM>
Date: Tuesday, June 19, 2007 7:08 pm
Subject: Re: Loose exhaust bolt again. fix if stripped?
To: vanagon@GERRY.VANAGON.COM

> Oops I meant #4. I will check my stash of bolts for a 8x1.25 30mm
> bolt tomarrow. I did replace the #1 bolts with a bit longer bolt
> and it fixed the job when I
> had basically the same issue last year. I think the bolt is short
> and the 1st little bit is lacking thread. Heat cycles could be a
> factor thats why I asked about
> lock tite of some sort to hold it from moving. the complete system
> has no stress ( as long as you dont count me). Everything is in
> tip top shape with no rust,
> Clean and all brackets are there and doing there job.
> Thanks for your input all. I guess I need to put it on the lift
> and fix it this week. Thanks
>
> >I use  30MM bolts on the #4 exhaust port under the water pump it
> might seem
> >to long but works fine shorter bolts tend to strip out the
> threads in the
> >heads.  the number 3 port gets studs. If you use stainless bolts
> they tend
> >to relax after a heat cycles and I recheck them when I change the
> oil the
> >first few times. Repeated backing off of the fasteners requires a new
> >approach
> >I do not know of a lock tight type stuff that works with that
> much heat
> >Is the exhaust secure are the muffler straps tight.  Does the
> exhaust move
> >as the engine moves if not the flexing system brakes pipes over
> time and
> >puts excess strain on hardware and connections
>
> >Bob Donalds
> >Boston engine
>
>
> >----- Original Message -----
> >From: "Jonce Fancher" <streetbugs@WHISPLLC.COM>
> >To: <vanagon@GERRY.VANAGON.COM>
> >Sent: Tuesday, June 19, 2007 5:29 PM
> >Subject: Loose exhaust bolt again. fix if stripped?
>
>
> >> Hi all
> >> Well the No.3 exhaust bolts seem to not want to stay tight. Is
> there a
> >> Lock tite to work in this heat? or should I pack it with
> sawdust and jb
> >> weld? (Kidding)
> >> Im always careful to not over tighten exhaust studs but this
> one never
> >> gets good and tight sorta tight but I stop before over torque.
> I did see
> >> this 2 part putty that
> >> they mix up and can tread once hard <not JB weld> at Fastenal.
> Not sure if
> >> it would work. I could always do the helicoil since ive got
> them. Actually
> >> I should pull
> >> the stud and see if I can go longer to bite into fresh threads
> deeper in
> >> the head. If I can is there a Lock tite for heat as per my 1st
> question.>> If I snug it up the
> >> thing is great for about 100 miles. Of course its the one under
> the water
> >> pump.
> >>
> >> I can get a 6" extension on it not a problem. Im just not in
> the mood to
> >> pull the exhaust system and all if I dont have to.
> >>
> >> Thanks Jonce
> >>
> >> Jonce Fancher
> >>
> >> 56 Single Cab
> >> 66 Sunroof Bug
> >> 66 Variant Squareback
> >> 66 Porsche 912
> >> 71 Sunroof Bus
> >> 84 Vanagon "Gottfried"
> >> 85 Vanagon Westi
> >> 2003 10 Passenger Sprinter
> >>
> >> Fancher's Upholstery Inc. -  www.fanchers.com
> >> Not-A-VW Club- http://mywebpages.comcast.net/jaransont3/notavwclub/
>
>
> Jonce Fancher
>
> 56 Single Cab
> 66 Sunroof Bug
> 66 Variant Squareback
> 66 Porsche 912
> 71 Sunroof Bus
> 84 Vanagon "Gottfried"
> 85 Vanagon Westi
> 2003 10 Passenger Sprinter
>
> Fancher's Upholstery Inc. -  www.fanchers.com
> Not-A-VW Club- http://mywebpages.comcast.net/jaransont3/notavwclub/
>