I also always use the spun metal type donut clamps instead of fiber as fiber
are prone to crack. The metal ones will move a bit to conform to the heaterbox
pipe shape
Ray
Sent from my Verizon 4G LTE smartphone
-------- Original message --------
From: 'Rayvwbug' via VintagVW - Air Cooled Volkswagen Discussion List
<vintagvw@googlegroups.com>
Date: 4/19/20 8:10 PM (GMT-05:00)
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Bug Exhaust Install
So great to see a vw question. No viruses!
Sent from my Verizon 4G LTE smartphone
-------- Original message --------
From: "Dave C Bolen" <dbo...@shockwaverider.com>
Date: 4/19/20 6:09 PM (GMT-05:00)
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Bug Exhaust Install
Dean,
LOL....I have seen two grown men cry over trying to install a stock vw
muffler...many years ago...
I never touch the heater boxes except with a carefully placed prybar
to force them to match up with the muffler.
I quit using the donut method years ago cause the pipes(after all these
years) are never the size they used to be....generally waaay too loose and
leaky.
Do the weld on flanges and you will never be sorry. You will still need a
gently used pry bar and punch to hold one set of the holes in the right
place no matter what.
Cheers, dave
On Sun, 19 Apr 2020, D Johnson wrote:
> I always start with confidence and enthusiasm. I loosely install the heater
> boxes to allow lots of wiggle room. Then the flat gaskets are slipped over the
> head bolts and the fiber donut with concave metal washers are pused onto the
> heat exchanger. That's when the trouble begins. I don't think I have ever
> successfully joined the muffler (or header) to the heat exchanger. Those
> clamp halves don't want to hug the muffler, the fiber donut, and the washer
> together. Something wants to slip out. Sometimes it works out with no leaks
> but it is never pretty, and I put on my first muffler in 1988. Should I be
> modifying the clamps to make them fit better or should I weld on flanges and
> give up on the old school method? Is there a better version of the old-style
> clamps out there?
> My 1915cc engine is back in the '71 Super Beetle with Dual IDFs. I need to
> work out the fuel system (tank, fuel line, fuel pump). Then more things to
> take
> care of because the car has been sitting for so long, brakes and lights need
> to be checked etc.
>
> Hope you all are well, keeping safe and busy.
> Dean Johnson
> WIlliamson, NY (Rural NY amoungst the apple orchards)
>
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