I am setting my injection pump timing and have a question about the cam lobes on cylinder 1. I am following the DIY on this site and the maintenance manual variously. In the DIY article, it states that the cam lobes should be positioned up. I cannot see the lobes in the picture. When I set my balancer to 24 degrees BTDC with the cam lobes up, I cannot pump any fuel through the drip tube. When the lobes are down at 24 degrees BTDC, Fuel squirts through the drip tube. The DIY says to rotate the ip until drips are at 1 per second while using the hand pump. The Maintenance manual says to rotate the engine until the drops come at 1 per second. I have not seen drops yet.

1- Is this 180 degrees out?
2- are both of these methods correct?
3- Does an 83 240d have a mw pump?

The car does start and idle smoothly but with some smoke. I replaced the fuel injectors and heat shields. I can see no fuel leaks It was pinging or knocking under load before I began this work. I have adjusted the valves and replaced all rubber fuel hose and return hose and hand pump and crush washers. My timing chain is keyed to within specs.

This is your third thread on the identical topic.

Once upon a time, all of the superfluous threads would have been deleted.

Now, the onerous is on you to keep all of your questions on a single topic on a single thread.

I had no idea.
I have been working on my car a lot and it has been kind of a fluid situation. I apologize and will endeavor to keep it tidier in the future.

Set the crankshaft to around 60 degrees BTDC on the compression stroke, then rotate the crankshaft while pumping. Look for the point where substantial flow begins to slow to a drip. It's a lot like shutting off your kitchen faucet; you have full flow, then the flow slows to a drip just prior to the valve being completely closed.

Thanks,
-Are the cam lobes pointed down at the compression stroke? The DIY says they should be pointing up. (cylinder one)
-Is the idea to move the slot in the rear of the pump and then lock it down or is it more like on an axle?
-does one need to pump the primer pump the whole time during rotation?

No.

Yes.

It is actually better to rig up a container for the diesel and feed it to the back of the pump I believe...

this method has been described in the archives...

This gives you a much more consistent pressure...which will affect the drips per second.... but it means in setting it again or trying to see what your car does best with ( since no standard pressure is noted in the FSM ) so you can repeat the procedure and note exactly what you have done in case you need to do it again at some later time...
the speed of pumping and the condition of the hand pump gasket make consistency unlikely....and unmeasurable... but the height above your pump method can give you relative repeat pressure.

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Consistency is achieved when the relief valve is actuated.

Since I can not visualize that... can you expand upon your statement ?

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

I was able to set my ip timing using the drip tube method! but! I was only able to set it to 30 degrees BTDC, Ouch... The pump is as far away from the block as I can get it. I assume I will have to remove my injection pump and reinstall it. Pumping the primer pump during engine rotation does seem to work.
Thanks

Did you mean during IP rotation ?

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

To ascertain the existing timing, rotate the crankshaft and leave the IP alone. To adjust timing, rotate the IP and leave the crankshaft alone.

If the relief valve on the IP is "popping," delivery pressure is being regulated.

So, when you are pumping the hand pump and trying to slowly move the IP to the one drip per second.... can you hear this ' popping' .... or are you assuming because fuel is flowing that it is being regulated as to pressure ?
Back when this was being discussed before I don't remember anyone mentioning that our efforts to stabilize and standardize the fuel pressure was a waste of time( that it was being taken car of by an internal regulator).... it seemed like we started talking about fixes when someone indicated the flow rate changed without the movement of the IP.

__________________
1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Because of the audiable pinging etc it does sound like the pump may be a little advanced.

The fuel pump, by design, over delivers. Excess fuel (and pressure) is "vented" through the pressure relief valve. As long as supply exceeds demand, the upper pressure is regulated by the relief valve. No one should have any difficulty pumping fast enough to keep up with one drip per second.