Re: type3-d Digest V2007 #265

[russw <russw@classicvw.org>]

On Mon, 2007-06-18 at 01:37 -0600, Jim Adney wrote:


> You're exactly right, but even with those clamps, the HEs often rust 
> just in that spot and allow that jet of exhaust to blow in there.
> 
> The only sure cure is to make that exhaust joint leak tight. The 
> problem here is that the pipe on the HE gets necked down due to 
> corrosion under the joint clamp and seal, so that eventually the seal 
> can't crush enough to do the job. 
> 
> The cure that I've found is to cut up some very light (~.020") 
> aluminum sheeting into strips which can be wrapped around the pipe at 
> that point and which will make up for the loss in diameter. This is 
> all a bit fiddily, but it works. You can cut this stuff with tin 
> snips or large scissors. I also use alum foil when the sheet I have 
> is too thick.
> 
> I have a bunch of scraps of the alum I use, so if anyone needs some, 
> contact me.

I have the repair pipes that you replace the ends of the HE with. 

http://classicvw.org/gallery2/d/3965-2/adapter1.jpg

You cut away the bad portion at the end of the HE and drive these into
place. You then have them welded. You are then back to the original
diameter where the exhaust gasket seats. They do neck the ID of the HE
down just slightly. Maybe 1/6"-3/32". I have a couple of these that I
made, then luckily, I ran across a bunch of them on Ebay.
-- 
russw <russw@classicvw.org>

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