hey guys i got the pump back on and was going to pull the pin out and it wont move,,,,i mean i put a small pry bar behind it and it wont move at all,.,.,can i move the fly wheel back and fourth just a bit maybe loosen it up,,,,i was rotating the flywheel with a screwdriver while my brother pushed the pin in,,,could it just be jamed in....thanks for all the help guys.....

 

They tend to get stuck due to dirt and grime getting lodged in the housing itself after years of driving. A little penetrant or WD-40 should help. I used a pair of channel locks or vice grips to jiggle and twist the pin in order to get it moving freely.

 

thanks man ill give it a try

 

When I pulled the pump on our son's truck, the timing-pin --- it is more of a peg than a pin --- came loose in my hand; it had been held in place only by a big glob of silicone.

It has been so many years ago that I can't quite recall just how I blocked off that hole, but I did block the big hole and the peg is in the box of spare parts.


It seems like I may have had to do likewise on a couple other engines over the years; as good as everything else about a Cummins is, that TDC pin is a joke.

 

I noticed it's sticky too. When I use the timing pin, I pull it out, clean it, wipe out the hole, lightly oil it, and operate it with my finger tips. There's a bit of a detent to hold it in place free of the gear when it's not being used.

It's obvious that if it's grimy and you just push it in, you're asking for trouble.

 

it popped in kinda hard i didnt know you could take it out,,,ill try the channel locks in a few ,,,but i should be able to pull the whole thing out right?,,,,clean it ,,,then pop it back in,,,if this dont work would it hurt to barely rotate the engine ,,,,hopefully i dont have to do this for another 600,000 miles,,,

 

Turn it the other way just a tiny, tiny bit and see if it releases any tension on it. It would be real easy to turn it too far.

 

Very true, it would be fairly easy to go over a compression "hump" and shear it off...Mark

 

hey guys i got it with the channel locks ,,,i put some pb blaster on it and twisted it a few times and it popped right out ,,,thanks for all the help guys...

 

That's great!! How does it run?...Mark