Hi I have a ford 3600 for the last few years always gave me a bit of trouble with the injector pump, would have to tap it to get tractor started but now it wont start at all after been lying up for six mounts ,I can get fuel to the bleeding screw but not to the injectors, now I have a change to get a recondition one of a ford 4600 was never fitted, the only concern I have is the dpa numbers are not exact , on my pump the number is 3233f380, on the pump I am getting it is 3233f390 will this fit, or will I have to get it timed/adjusted any help on this would be great , 