[AT] Case diesel

charlie hill charliehill at embarqmail.com
Sat Apr 14 13:42:47 PDT 2012


Charles,  I replied to Mike's suggestion before reading yours.  Your 
technique sounds good too.

Charlie

-----Original Message----- 
From: charles bridges at blueridgeconnect.net
Sent: Saturday, April 14, 2012 3:50 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Case diesel

I believe there is a place on the injection pump to bleed it that you
are not seeing.  I don't know enough about it to tell you where to look.

I would hook another tractor to it and pull it.  If it still don't start
break the injection lines loose at the injectors and pull it again until
you see fuel at the lines.  When you see fuel, tighten them up and pull
it again.  I think it will start then.

This has worked for me in the past.

Charles

On Sat, 2012-04-14 at 14:57 -0400, john hall wrote:
> Case diesel guys--I need some help!
>
> I'm working on a Case 431 (I think) tractor with a Roosa Master model DB 
> fuel injector pump. According to the service manual it is a 188 series 
> engine. The owner changed the fuel filter (aftermarket) and now it won't 
> run. It will crank on starting fluid (we are not using the glow plugs, he 
> never has in the 17 years he has owned it) but that is it. I am assuming 
> an air-lock. There is a good supply of fuel going to the filter. When I 
> open the supply line at the pump there appears to be a reasonable supply 
> of fuel there also. I can't figure out where to bleed the pump itself. He 
> has a Case IH service manual and it mentions nothing about bleeding the 
> fuel system other than at the filter. I've checked and have nothing coming 
> out of the bypass line from the pump to the tank. I have noticed a pretty 
> substantial leak around the throttle shaft on the pump, wouldn't that 
> indicate its pumping? Any ideas?
>
> John Hall
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