Re: A 414 Fuel Pump timing

Posted by jb2 on February 15, 2005 at 18:53:16 from (66.185.84.198):

In Reply to: A 414 Fuel Pump timing posted by Mike414 on February 15, 2005 at 14:15:06:

Hi Mike414, it been almost 35 years since I replaced a fuel injection pump on a 434 which has same BD-154 as B414.
From my memory I believe there were 3 cap screws connecting the pump drive shaft to the timing gear. The timing gears should have timing marks that align. The fuel pump can be 1/3 of a turn out of time as I don't recall any marks on the pump drive shaft to align to timinig gear. This is a trial and error method of course timing.
After bleeding the air out of the fuel system by using the hand pump and loosening the injector lines then if tractor won't start then rotate pump drive shaft by 1/3 and try again. Repeat until engine starts.

To do fine tuning of the timing, start off by setting the pump in the middle of the timing marks on the mounting plate. Mark a reference piont then attempt to start the tractor.

If the tractor kicks back on the starter then the pump is timed to fast and if it is hard to start then it is timed to slow.
Rotate the pump about a 1/16 inch in either until the best starting position is found.

Good luck
JB2

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