[AT] Case diesel

[Mike Sloane]

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
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