Ford 655c Backhoe Manual

Hi guys, hoping for a little help. I've got a 655C Backhoe that I had the pump rebuilt on. I don't have the service manual, shame on me, I always get one, and will soon. Anyway, I lined it up, I thought, when I took it apart. After putting it all together, the timing must not be right. It starts, revs up, but don't have enough power. I think it must need timed to a different setting, but don't know what it should be to check everything. It was running fine when I took it apart, I had it rebuilt due to leakage. Could somebody tell me the timing specs? Don't want to wait for a manual, but I'm probably going to buy one anyway. Thanks! -Andy

I put an injection pump on a JD 8300 this summer, a JD Reman from JD. Didn't start real well, sluggish acceleration, smoky, almost like timing was off. But it wasn't, my timing of the pump was dead on, I must have rechecked it a dozen times. I retarded the timing as the adjustment slots would allow, guessing 20 degrees. It started and ran very well, like it should have run. Asked the service manager where I got the pump from what be thought, be said it was nothing with their pump, it was myself screwing up the pump to engine timing. Said he had never seen a pump timed wrong internally. So I asked a JD tech I know, he said he had changed 5 pumps this year that were timed wrong internally or just plain didn't work, all JD Reman pumps. I put the pump where it needed to be for removal, locked the flywheel with a 5/16 bolt, installed my lock bolt in the pump, called JD and told them to have their tech look at it. Be came out, verified my timing, unlocked the pump and flywheel, tried to start it, and being about 50 degrees outside, it wouldn't even try to start. I showed him how well it ran with the pump retarded as far as it would go, and he immediately condemned the pump. He ordered a new pump and brought it out when it came in and put it on and timed it the same way I had done the other one, and it worked like a charm. He said he couldn't have done it any better timing the first one himself, and that the pump WAS timed wrong internally, and even as badly as his SVC manager didn't want to admit to fault on JD's part, they didn't charge me to have their tech verify my problem with the 1st new pump and subsequently change it to the 2nd new pump. I can't remember if there is much for slots to adjust the timing much on that Lucas pump, but you could scribe the pump and housing where it is at right now, IF you are CERTAIN you have it timed correctly, and rotate the pump one way then the other to see if it clears up the problem. Not to leave it there, in a 'guessed timing location' but it may help you determine if there actually might be something going on with the pump.

Ross

Guess I should mention it's the injection pump on the motor. Lucas pump. And, when I lined it up at disassembly, I found the timing window on the flywheel, and took the front cover off for the drive gear. When 0 was centered on the flywheel in the window, the only dot on the drive gear meshed with the mating gear, and the line on the pump housing was at the 0 graduation in the engine block. Thought I had it all right! Would it need to be advanced a few degrees? -Andy

My 655A has an in line pump. I had it off several years ago, and can't remember those details. But it seems like the timing was 17 degrees. I only have an operators manual for it. As I recall it had whatever info. I needed.