[AT] Case diesel

[charlie hill]

John,  I'm not familiar with that engine but what Mike suggests is exactly 
what I would do if it were mine.  loosen one line at the injector and spin 
the engine over until you get all fuel and no bubbles.  Tighten it down and 
repeat on the next injector.  If you can get good fuel to all of them you 
have all the air out of the pump and lines.  It should start then.   Be 
careful using the starting fluid.  Don't use it unless you have to.

Charlie

-----Original Message----- 
From: Mike Sloane
Sent: Saturday, April 14, 2012 3:46 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Case diesel

I have the service manual for that engine also, John, but I couldn't
find any reference to bleeding the injection pump. What I did find was
the section on checking the injectors  (Section "I"), and on page 6 it
suggests "loosening the high pressure fuel lines at the injectors, one
at a time" and crank the engine. I would think that would also serve to
bleed the lines. Be very careful around those lines and only crack the
3/4" fitting a little, and keep your face and hands away from the
connection.

Mike

On 4/14/2012 2:57 PM, 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 _______________________________________________ AT mailing
> list http://www.antique-tractor.com/mailman/listinfo/at
>
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