Injection Pump Timing without OBD Interface

[ccfoshee]

Hi guys:

I'll be replacing the injection pump on my truck soon and wondered if it was possible to get it timed correctly without hooking up to the OBD port.

I don't have an ALDL cable and really don't want to wait for it to be shipped in...

Thanks, y'all,

 

[great white]

You can install the pump "straight up" and see how it runs.

Turning the pump will have to be done by ear.

But, you won't be able to run timeset or tdco learn.

I'm not sure how the OBDI system will deal with that, but the OBDII will run on the last stored value until it intitates a tdco learn. If the value is way out of whack when it does it, the truck will start running like crap.

My recommendation?

Try it, see how it goes.

But while you're waiting, order the proper program/cable to do it right.

 

[ccfoshee]

That's the plan...to order the cable, but I wanted to get the pump in and over with.

Thanks.

 

[THEFERMANATOR]

And I would reccomend babying it until you actually set the timing. A SMALL change at the pump can make a BIG change in total timing.

 

[WarWagon]

What is making you think it needs a pump?
I time the mechanical pumps by ear, but, the electronic ones will code if they are too far out.
Clean off the top if the pump and timing cover as their should be a line. Then you can set timing "line to line" with the pump straight up. On a high mile engine give it a dime advance to the driver side, line on pump moves to the driver's side. This will help with chain stretch.

 

[ccfoshee]

WarWagon - one of the plungers is worn enough to make one of the injector lines pop faster than the others causing terrible idle - sounds almost like a spun bearing - but the bottom end looks fine when opened up. It's not the injector - switched it out and the sound didn't move with the injector.

Does anybody have a good place to get an ALDL cable? I tried ALDLCable.com, but their order function is messed up.

Thanks again.

 

[Burning oil]

Try my web site www.pmdcable.com

Welcome to TTS. Your name seems familiar, have you bought from me before?

Leroy

 

[ccfoshee]

Thanks Leroy, will check it out. Nope, never bought from you before. But probably will.