[T3] Loss of power at speed- could it be overheating- update

[Dave Hall]

I understand my second Type 3 was bought cheaply by the PO as it wasn't
running well.  He went through the carbs carefully and found a hair in one
of the small jets.  It's surprising how much of a problem can be caused by
very small things.  Others have cut a sliver of rubber hose off when
refitting it, which can lodge in the needle valve, or more puzzling, move in
and out of it causing intermittent fuel starvation.  With two carbs, things
can be masked quite well if one carb is fine as the balance pipe evens the
mixture supply out.

Dave.
UK VW Type 3&4 Club
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-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org
[mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Mike
Fisher
Sent: 31 October 2010 23:23
To: type3 at vwtype3.org
Subject: Re: [T3] Loss of power at speed- could it be overheating- update

WTG Mark!  At least you didn't blame it on "lousy" VW's 5 years ago and sell
it at a loss! ;-)

On Sun, Oct 31, 2010 at 4:15 PM, Mark Seaton <markse at mo-sys.com> wrote:
> I think I finally found the cause of the problem that has been 
> haunting me for so long! 
Snipped
> I removed the float and noticed something I 
> had seen but never really thought about before, but this time it all 
> added up- there was a flaw in the casting of the carb body resulting 
> in a small raised worm like "flashing" on the top of the main jet 
> housing. 
Snipped
> Mark
> '73 twin carb Fasty, soon to be working as it was designed to!
> UK
>
> PS, here's a pic of the casting flaw:
> http://www.flickr.com/photos/37269790@N00/5133105029/sizes/l/in/photos
> tream/
>