On other engines (haven't done a cummins) it's easily possible to be 180 deg out. Wtih a turbo engine both valves closed can be harder to pick too as they have less valve overlap.I'm looking to find top dead center on my motor so I can remove the injection pump. Is using the pin below the pump a fail safe way for tdc, or is it possible to be 180 degrees out. I was hoping to avoid removing the valve cover.
That's the main reson for that pin is to find TDC , the pump can be out if it wasn't lock or if you have bought a used one .Why do you think it might be out ?Are you just asking ?I'm looking to find top dead center on my motor so I can remove the injection pump. Is using the pin below the pump a fail safe way for tdc, or is it possible to be 180 degrees out. I was hoping to avoid removing the valve cover.
I removed mine to repair the throttle shaft and replace seals.I was curious if the timing gear will go anywhere or can get a tooth out of alignment if I remove the puller with the timing cover still on? I also like how the manual doesn't tell you that the pump nut cover UNSCREWS! I judged by the manual that it must have been a snap-in thing.. Almost bought a new one... bounce
The reason I ask is that I was think of taking two IPs to get rebuilt.. maybe get a better price (probly not)..
1. Locate timing pin in timing gear for TDC.
2. Remove #1 valve cover
3. Verify there is valve lash in both rocker arms by moving both rockers and noting both are tension free.
4. Loosen injection pump shaft locking bolt and remove the "crows foot spacer washer."
5. Using a small piece of wire, attach washer to your engine (using the hole provided in the washer) in a secure location.
6. Torque shaft locking bolt to 15 ft/lb there by locking pump in position.
7. Note or mark injector lines for position. Remove injector lines and place in a clean trash liner bag.
8. Remove pump mounting brackets.
9. Remove the remaining associated fuel lines. Place in a clean trash liner bag.
10. Note timing mark on pump and gear case.
11. Remove the three injection pump attaching fasteners.
12. Remove the pump gear attaching nut and lock washer.
13. Using a small gear puller, separate the pump from the timing gear. Be careful to avoid dropping the pump.
13. Using a scribe, reference mark the location of the keyway on the pump body.
If you are also removing the timing cover then you should note the letter on the pump timing gear's point of contact letter in the timing marks. The gear is now loose in the timing case and can fall to the floor if the timing cover is removed.
http://dodgeram.info/tsb/1994/18-10-94a.htm figure 12 for people like me who need extra visual picturesI've pulled both my VE and P7100 pumps and basically the hardest part was reaching down with the 15mm to turn the engine by the crank pulley until it was lined up. Once I had it lined up I threw my cheap ebay puller on there and things progressed quickly from there.