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I replaced the blown engine on a customer's '80, Ford 2600 and reinstalled the CAV diesel pump. I have cranked the stew out of this tractor and still cannot get it primed to start. Any suggestions?
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J Hamilton
Well-known Member
- Location
- Southern Illinois
Have you bled the air out of the lines,
pump and injectors?
pump and injectors?
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New User
I have bled from the main bleed screw, and checked both input lines. When I take loose the actual pump-end line, I can open the cock to fill the input orifice with diesel, crank the engine 1 revolution and watch it suck in the fuel. I have done this a dozen or so times. I still cannot get fuel to come out of either of the 3 injector lines. These CAV pumps have always been tough to prime, but this one has got me!
J Hamilton
Well-known Member
- Location
- Southern Illinois
How long since this pump was last in
service? And has it been checked to be sure
it doesn't have stuck internal parts?
service? And has it been checked to be sure
it doesn't have stuck internal parts?
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New User
It has been out of service for a year and a half. The owner cracked the block between the waterjacket and the valve pushrod chamber filling the engine (except for cylinders) with water, and also blew into the bell-housing and filled it up to the shaft and it sat that way for 8 months before getting it to me. 'Tis the worst mess I have ever seen. So...rebuilt engine, new-most-everything, except for CAV pump. I'll probably have to take off the top and check for stuck stop lever or governor/accelerator movement. Or...just get it rebuilt. It should shoot out of the ports on the pump body, but it does not.
Steve@Advance
Well-known Member
How does the engine shut down?
Is there a solenoid or a lever?
If a solenoid, be sure the lever inside is moving.
If the pump sat exposed with disconnected lines it may be gummed up inside.
If it is, have a game plan for if it does start, just in case of a run away!
Is there a solenoid or a lever?
If a solenoid, be sure the lever inside is moving.
If the pump sat exposed with disconnected lines it may be gummed up inside.
If it is, have a game plan for if it does start, just in case of a run away!
Dieseltech
Well-known Member
- Location
- Akron, Indiana
Setting that long without running, I'll bet the metering valve and/or rotor plungers are stuck. I see that each week on pumps I tear down for repair..
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New User
That's what I am thinking. I plugged the lines when I removed it several months ago. It took three months to get an engine back because all the shops in Southwest Georgia and around were closed due to nnalert. I am doing this for a good friend because no one wants to touch these old tractors any more. I have a full-time work and just "enjoy" doing these things, but this one has just stumped me. I've never attempted to rebuild one myself so I will just remove it and take it to a shop....or get a rebuilt one.
J Hamilton
Well-known Member
- Location
- Southern Illinois
I would contact Dieseltech on here and see
about sending it to him for repair. He just
finished one similar one for me.
about sending it to him for repair. He just
finished one similar one for me.
Did you happen to put a new Wix brand filter on it? You probably already know it, but Wix, in the last few years, changed the design of the 33166 filter. There is a grove in the top of the filter that the fuel must flow through, but it also looks like the ideal place for an o ring type gasket, and the filter comes with one that happens to fit the groove. If the gasket is placed in this groove, no flow to the pump. In the last few years, I have fixed at least three that were that way. Just thought I would mention it.
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New User
I have good flow going to the pump, but with an off-brand filter that the customer provided.
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