IP timing

[treemonkey]

Is it possible to time a new IP without a scan tool? Just fitted new IP to my truck and now it cranks and almost fires but not quite! I've tried cracking off the injector lines to bleed the air out. I don't have access to a scan tool locally so any advice would be very welcome!
Best Wishes
Mike Simpson

 

[great white]

Is it possible to time a new IP without a scan tool? Just fitted new IP to my truck and now it cranks and almost fires but not quite! I've tried cracking off the injector lines to bleed the air out. I don't have access to a scan tool locally so any advice would be very welcome!
Best Wishes
Mike Simpson

Pump mounted stright up should at least get you running.

You will need a scan tool to verify timing and set TDCO.

If you don't have fuel at the injectors, you need to keep bleeding out the air before it'll tick over.

If you can't get fuel at the injectors, you may have a bad fuel shut off...

 

[ak diesel driver]

you can't totally time it without it running. Point the shut off cylinder straight up and it should be close enough to run. sounds like you still have air. try pulling the glows so it will crank over easier and crank until you get fuel at all injs

 

[treemonkey]

Thanks guys, your help is priceless as theres a real lack of knowledge here in the UK!

 

[orrum]

Give it a rest between cranking to cool the starter, cranking too long will ruin the starter.

 

[orrum]

Give a rest to the starter to cool it down between bouts of cranking, u dont want to overheat and buern up the starter.

 

[buddy]

To time yours you do not need a scan tool, but to verify it you do. Also have to know its not a normal timing thing with degrees and a light or anything like that but the computer figures it all out on its own and you just need to be in a tolerance.

To time it, pointing straight up, or use the timing mark on the timing cover. The IP mounting flange turns down right where the timing mark (wedge that sticks out of timing cover) is pointed. The IP flange should be just a bit, like 2-3 millimeters to the drivers side of where the timing mark is pointed. Then you can run the KOKO, key on key off, procedure to initiate the TDCO learn function of the PCM.

That procedure out of the timing sticky is, and only an option for OBD2 PCMs

ECT must be at operating temperature ~170*F

1.With Key OFF, press fuel pedal to floor and hold it there
2.Key ON 45 seconds
3.Key OFF
4.Release pedal
5.Wait 30 seconds
6.Turn key and start engine after glow cycle

As the engine fires up, engine rpm may increase, engine may hesitate and stumble as PCM determines newly-adjusted IP position, then will smooth out to normal idle after new TDCO value is calculated

If it works and you do not get a SES light/code then its good to go. Having a code reader at least would be helpful, because if you have a light/code then you could verify its for DTC P1214 Injection Pump Timing Offset. If it is, delete it, adjust the pump a tad back towards the timing mark and repeat the KOKO procedure. Thats not the precision method, but will run just fine. A lot of people like to know its around -1.5 or at least a negative value, since factory timing is -0.25 to -0.75 TDCO.

Attached a pic of that timing mark and IP flange position, although difficult to see with the dual thermostat housing on your truck. The edge line of the IP flange needs to be just a couple millimeters towards drivers side of timing wedge tip.

 

[treemonkey]

Thanks Buddy, thats a huge help! I'll give it ago in the morning. Can't wait to get her up & running again! Thanks again