Engine/Transmission (1994 - 1998) I think I messed up.... Injection pump reinstall timing.....

[MPascino]

Long story short, the KDP claimed another(I bought the truck with a broken gear housing). I am in the middle of replacing the housing. I did not lock the injection pump timing pin in place before removing the gear from the pump. Is this a problem? I was orignially under the impression that all I needed to do was line up the camshaft TDC pin at reinstall and then line up the pump pin and tighten down the gear but now I am not so sure. Am I going to have to go through the whole dial indicator timing method now? Was there any avoiding it to begin with? I was under the impression that timing could be set on the bench, but now that I see the pump gear can be installed in basically any position I'm confused.



Where is the best place to get the timing dial indicator set? Is there any way to use a standard issue dial indicator? What is the thread on the delivery valve holder? Any info you guys can shed on my ignorance at this point is appreciated. Thanks,

Mike

 

[CumminsPower98]

Yes you could have pined the pump before removing the gear but that would have given you stock timing. So yes you will have to time it now. I got my set from Snap-On back in '02 for about $221 and don't know of other sources. I'm not sure if you can use a standard dial indicator or not but I'm sure someone knows. If you can you would at least need the DV holder socket and dial indicator adapter and extension. I have no idea on the threads.

 

[MPascino]

So if nothing else, if I reinstall the pump using the pins, I should be able to get the truck to stock timing, correct?

 

[CumminsPower98]

Yes you should be able to time it that way and get stock timing without the dial indicator. If you want to advance it at all then you will need the tools.

 

[MPascino]

sounds good, at least this will get me on the road for now until I pick up the timing tools. Thanks for the help!

 

[DBraunig]

The timing pin is set to TDC during engine assembly. If you have changed the case, then the timing pin is no longer accurate for tdc and can be several degrees off, if not more. At this point you should use the drop valve method to locate TDC and then mark your balancer as a reference. If you still have your old broken timing case with you, loosen the screws in the timing pin holder and see how it will move around in the case . The pin/holder is set to tdc on each engine individually during assembly . you may get lucky and pin them both, but chances are you timing will be off.





Dave

 

[MPascino]

This is making the idea of welding my case back up seem like a good idea... . Oh well, looks like I am in the market for a snap on setup... ... Thanks,

 

[MPascino]

Just a dumb thought, but why couldn't I use a magnetic base dial indicator to set the timing?

 

[burnin oil]

I tried and gave up. There is nothing good for the base to hook too that will put it in a working angle. I highly recomend buying the DV adapter or drilling out an old drin pan plug. Either one will work alot easier.

 

[CumminsPower98]

You can still pin the pump on the bench to get it's timing set at the factory spec regardless of the timing pin in the gear case. You can then use the drop a valve method as DBraunig suggested to find TDC on the engine, then all you have to do once both are set is put it together and flip the pump pin around and put the cover plug back in. So you don't need the special tools unless you want to advance the timing from stock. I don't know about a magnetic setup, it might not work good enough.

 

[Jim Fulmer]

If you drop valve TDC the motor and pin the pump at TDC and lock it down then you will be at stock timing, if you back the motor up from TDC prior to tightening the pump nut the you just advanced the timing... ... ... ... do a search under the 12V form and my name... . I've posted it before.



Jim