IP 180deg off, is this possible? - PeachParts Mercedes-Benz Forum

Slow-Poke-220D · #1 07-01-2011, 09:53 PM

Quote:

Originally Posted by Diesel911

To answer your question; with out someone pulling the Fuel Injection Pump off of the Engine and re-installing it wrong it cannot be 180 Degrees off.
For what ever thier reasons previous owners do not always say the truth.

I would suggest checking the Camshaft Timing First to see if that is correct since the Timing Chain turns the Fuel Injection Pump.
Not hard to do. Line the Timing Mark on the Camshaft Gear up with the one on the Camshaft Bearing Tower and look down at the degree marks on the Crankshaft Damper.

Another issue is that the Degree Pointer sometimes bent or otherwise moved around.

Below is the rest of the repar section:
DIY Repair Links
http://www.peachparts.com/shopforum/diy-links-parts-category/

http://www.peachparts.com/Wikka/DoItYourSelf

Hi,

I followed the DoItYourSelf article for timing the IP and all I get is a steady stream from the drip tube even when I push the IP as near to the engine as possible. I will try again in the morning. The car has sat here for over 8 months now and I might as well try and get her going. Its a nice car and it would be great to get it on the road. I will part it out this winter if I fail to get her going.

Thank you for your comments and links.

Andrew

tangofox007 · #2 07-01-2011, 11:01 PM

Quote:

Originally Posted by Slow-Poke-220D

Hi,

I followed the DoItYourSelf article for timing the IP and all I get is a steady stream from the drip tube even when I push the IP as near to the engine as possible.

That happens when the timing is retarded to the point that you run out of adjustment before reaching the desired start of delivery point. Not at all uncommon. You will need to remove the IP and re-index it to allow the necessary range of movement for adjustment.

To determine the actual start of delivery, rotate the crankshaft, not the IP.

Slow-Poke-220D · #3 07-02-2011, 08:02 AM

Quote:

Originally Posted by tangofox007

That happens when the timing is retarded to the point that you run out of adjustment before reaching the desired start of delivery point. Not at all uncommon. You will need to remove the IP and re-index it to allow the necessary range of movement for adjustment.

To determine the actual start of delivery, rotate the crankshaft, not the IP.

Hi Tangofox,

Is there a DIY article or any information on re-indexing an IP?

Regards,
Andrew

tangofox007 · #4 07-02-2011, 08:47 AM

Quote:

Originally Posted by Slow-Poke-220D

Is there a DIY article or any information on re-indexing an IP?

The procedure is the same as when installing a new or replacement IP.
Set the crankshaft at desired start-of-delivery position, remove IP, align IP index marks, reinstall IP in center of adjustment range. Then adjust SOD.

You could probably get away with just pulling the IP out, rotating it (the entire pump, not the shaft only) in the retard direction, then reinstalling it. That will give you the needed range of movement in the "advance" direction.