Tractor Repair: Fuel injector pump, dowel pin, throttle linkage
Question
> what is the correct way to remove and reinstall a fuel injector pump on a ford
> 4000 1974 tractor? how do I set or reset the timing marks? The manual I have is not
> very user friendly. Especially how to get to the bolt behind the pump holding it on?
I would say I am a beginner level. I did not realize I could upload a picture or I would have had a better one for you to view. Thank you for your time Andy.
>
AnswerHello,
This procedure is for a CAV pump which I hope is correct for the model year of your tractor. To remove the pump, take off the cover on the front of the engine over the injection pump drive gear, and unbolt the gear from the pump. Do not move the gear, just let it sit there. Remove the injection lines, throttle linkage, and fuel lines. Remove the bolts holding the pump onto the engine. The bolt on the back side can be removed with a socket on a long extension inserted between the pump and the engine. A wobble drive extension makes it easier. Do not turn the engine over while the pump is removed. When installing the pump, there is a dowel pin on the pump shaft that fits into a hole in the drive gear. Bolt the pump onto the engine with the scribed line on the pump mounting flange lined up with the scribed line on the engine. Install the drive gear bolts, and attach the fuel lines and throttle linkage. Loosen the injection lines at the injectors and crank the engine over until fuel with no bubbles comes out, then tighten the fittings again.
