[AT] Case VAH won't run; carb issues /followup post

[CEE VILL]

Dean,

If you go to the A.T.I.S. forum and click on my name somewhere to get to my page, check out my "other interesting stuff" album.  In the picture of the dis-assembled JD L carburetor, you will see the exact elbow with screen I referred to in my last reply.  Actually, I am pleased to notice you have already been th that page.

Charlie V.  




> From: dean at vinsonfarm.net
> To: at at lists.antique-tractor.com
> Date: Tue, 23 Jun 2009 23:24:58 -0400
> Subject: [AT] Case VAH won't run; carb issues
> 
> I was up at my dad's farm last weekend and continued tinkering with the old
> VAH.  This is the tractor we had when I was a kid, and which I bought back
> in 2006 about 20 years after my dad sold it.  It's still up at the farm and
> I haven't made many trips up there to work on it, so don't know much about
> its recent history.
> 
> When I first brought it back to the farm in 2006 it started and ran very
> well, but it hasn't run since sometime in 2008 I guess, not really sure when
> the last time was.
> 
> On my last two visits, a few months ago and just this past weekend, I
> disassembled, cleaned, and reassembled the sediment bowl and fuel line, and
> there's a good fast flow of fuel through the line when it's disconnected
> from the carburetor.  Put new gas in the tank, which had been very very low,
> maybe empty.  Disassembled and cleaned the air cleaner.  In the process
> discovered the air cleaner was mounted too low in its vertical adjustment
> range, causing the air pipe to be about 1/4" out of alignment with the carb
> intake pipe, which over some long number of years had reduced the rubber
> connecting hose to a twisted rotten oily mess.  Fixed all that stuff.
> Confirmed that there's a good spark, and that there's a reason to be careful
> with your finger placement when testing for spark.  Cleaned off the exterior
> of the carburetor, but haven't opened it up.  
> 
> After all that, the tractor will start right off and run great for a second
> or two, then die and won't fire again until some more time passes.  I
> fiddled with the main jet and idle adjustment screws but couldn't get it to
> do any better.  So my theory is that something is clogging the carburetor,
> and the next step is to take it to a shop for a rebuild or to try a
> maintenance kit myself.
> 
> Any recommendations?  It's a Marvel-Schebler TSX-597.  There's an
> in-progress photo at
> http://www.vinsonfarm.net/photos/Case_VAH_carburetor.jpg.
> 
> Thanks--
> 
> Dean Vinson
> Dayton, Ohio
> www.vinsonfarm.net
> 
> 
> 
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