Re: IH 3444 backhoe special

Posted by JB on November 22, 2003 at 21:22:30 from (24.157.143.220):

In Reply to: IH 3444 backhoe special posted by LA Bill on November 22, 2003 at 10:21:58:

I have changed a CAV injector pump on a 434D which is the same BD154 engine as your backhoe.
It was about 30 years ago and I will try to remember the steps.
The method I used was take an awl and scratch a line around the injector mounting plate. You will also find a couple of timing marks on the engine plate by the bolt holes that the injector pump mounts to. To remove the injector pump you have to remove all the fuel lines and the timing gear cover on the fan side.
Make sure you mark the timing gears or take note of where the factory marks are. Remove the nut on the shaft on the fan side of the timing gear. Remove the 3 nuts holding tne injector pump. Use a wooden mallet to tap the shaft out of the timing gear. There should be a key in the shaft.

Reverse procedure to install new injector pump, making sure to use your scratch marks to align the new pump. Most cases if the new injector pump is install in exactly the same location as the old one the timing should be OK. If timing is to slow tractor will be hard to start, if timing is to fast engine will kick back on the start when starting. Timing is adjusted by loosening the 3 mount screws and rotating the injector pump a small amount. If I remember correctly rotating the injector pump toward the engine block will advance the timing.

Good luck
JB

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• Re: Re: IH 3444 backhoe special LA Bill 05:11:50 11/23/03 (0)

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