| Major exhaust renovations. [message #184865] |
Mon, 17 September 2012 17:32  |
Bob Horton
Messages: 81
Registered: December 2005
Location: Brandon, Manitoba, Canada
Karma: 0
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Exhaust on my 75 Glenbrook is due for major renovations. Both mufflers to be replaced and both manifold gaskets.
Question?? Do I replace manifold bolts or reuse them?? Any preference regarding gaskets. Midas Muffler quotes under $20. for the gaskets - or are there something special I should be looking at. Mufflers about $100. each. Whole works including labor under $600. which seems reasonable to me. (assuming no broken bolts)
Any special advice will be appreciated.
Bob Horton
Brandon, Manitoba.
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| Re: [GMCnet] Major exhaust renovations. [message #184888 is a reply to message #184875] |
Mon, 17 September 2012 19:40  |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma: 0
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Based on my highly scientific sample size of one, I would expect 2 of 10
manifold bolts to break... after you soak them for a week with penetrating
oil and try to ease them out as carefully and patiently as any male can.
I just installed the Remflex gaskets which seem quite nice. If I were
doing what you describe, I would replace every bolt and also the donut
gaskets and bolts, as well as the pipe between the manifold and muffler.
That would leave you a single break between old and new behind the muffler.
http://www.gmcmhphotos.com/photos/member-galleries/p45528-403-exhaust-manifold-r.html
Mike, Dublin OH, PB 403
On Mon, Sep 17, 2012 at 7:32 PM, Larry <weidnerl@wwt.net> wrote:
>
>
> Bob Horton wrote on Mon, 17 September 2012 17:32
> > Exhaust on my 75 Glenbrook is due for major renovations. Both mufflers
> to be replaced and both manifold gaskets.
> >
> > Question?? Do I replace manifold bolts or reuse them?? Any preference
> regarding gaskets. Midas Muffler quotes under $20. for the gaskets - or
> are there something special I should be looking at. Mufflers about $100.
> each. Whole works including labor under $600. which seems reasonable to
> me. (assuming no broken bolts)
> >
> > Any special advice will be appreciated.
> >
> > Bob Horton
> > Brandon, Manitoba.
>
> I pieced my system together. After all was said and done...spending a lot
> of time and effort doing it, if I had it to do again, I'd buy the SS rear
> muffler kit from Jim K and be done with it. Most that have done that kit,
> have said the it fit like a glove, and will probably out live the owner.
> JWID
> --
> Larry :)
> 78 Royale w/500 Caddy
> Menomonie, WI.
> _______________________________________________
> GMCnet mailing list
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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| Re: [GMCnet] Major exhaust renovations. [message #184895 is a reply to message #184888] |
Mon, 17 September 2012 20:10 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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Another vote for Remflex gasket. Call JmK and get them from him. Follow the mounting instructions fully, you will be very happy, and quieter.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: Major exhaust renovations. [message #184909 is a reply to message #184865] |
Mon, 17 September 2012 22:31 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Senior Member |
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Probably cheaper and better to change to single two in one out muffler mounted in the front or a rear mounted single muffler.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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