[AJD] Model 40 Question

[Dean VP]

Cal:

My first guess would be that you have a partially plugged fuel tank outlet,
fuel line, or screen in the carburetor that is dirty.  Basically you are
getting flow but not quite enough. I would recommend starting at the
carburetor bowl and checking flow and if not satisfactory check to see if
you carburetor has a screen in the inlet and clean it if necessary. Then
check the fuel line for flow quantity and then back to the sediment bowl and
fuel tank outlet. Something is restricting adequate flow.

The only other thing I can think of is that the float on the carburetor is
set too low but I think the problems you describe is more than likely
inadequate fuel flow from the tank. I would suspect that if you worked the
tractor the run time would drop dramatically.

In a hurry I have been known to just simply blow compressed air back through
the fuel lines and if it is just dirt/junk plugging up the tank outlet it
will clear it out temporarily. But over time the problem will come back. 

Dean A. Van Peursem
Snohomish, WA 98290

I'm a walking storeroom of facts..... I've just lost the key to the
storeroom door 


www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
wb5cys
Sent: Thursday, November 25, 2004 12:56 PM
To: Antique John Deere mailing list
Subject: [AJD] Model 40 Question

My model 40 cranks on first turn even in freezing weather. Compression is 
perfect, oil pressure is perfect. When I first start it, the tractor will 
run for about 30 minutes great, then it dies as if it ran out of gas. I 
restart it and it restarts fine and runs for about 5 minutes then does the 
same thing.
If I let the tractor sit for about an hour, it will run for another 30 
minutes before repeating the cycle above.

Any ideas on what might be my problem?

Thanks!

Cal Barton
Nacogdoches, Texas


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