603 timing procedure - PeachParts Mercedes-Benz Forum

LAbioCars.com · #1 09-10-2009, 09:12 PM

anyone have a link ?

Brian Carlton · #2 09-10-2009, 10:30 PM

You need the A-B light.

Plug the the probe into the port and connect the battery lead.

Have someone slowly rotate the engine until the "B" light comes on. Now rotate it very slowly until both lights come on.

Read the damper.

The spec is 15° ATDC +/- 1°

babymog · #3 09-11-2009, 10:46 PM

+/- 4°? Shoot, I can eyeball that.

;~)

Brian Carlton · #4 09-11-2009, 10:54 PM

Quote:

Originally Posted by babymog

+/- 4°? Shoot, I can eyeball that.

;~)

My mistake.

The IP timing is +/- 1°

The timing chain stretch is allowed up to 4° at the crankshaft.

I'll edit post #2.

LAbioCars.com · #5 09-15-2009, 05:05 PM

I got the pump in and it starts but its LOUDDD!!!
sounds like all the cyls are nailing
im going retard it a bit and see if it quiets down

any other suggestions?

Diesel911 · #6 09-15-2009, 07:47 PM

Quote:

Originally Posted by LAbioCars.com

I got the pump in and it starts but its LOUDDD!!!
sounds like all the cyls are nailing
im going retard it a bit and see if it quiets down

any other suggestions?

Pump in but is it timed?

A different Engine but I tried to time mine a little advanced and it was nailining some; and as you are thinking of doing had to retard the timing.
From the threads and posts I have read it seems the after 1985 Fuel Injection Pumps that use O-rings as part of their seal have more problems with Nailing than the 617 types. They also seem to have more duedads in their fuel supply system that become sources of air leaks that can cause nailing. Despite the self air bleeding in some of them.

LAbioCars.com · #7 09-16-2009, 03:59 PM

I got the pump timed correctly but now it wont stay running for more then 3 seconds

any ideas

sixto · #8 09-16-2009, 06:43 PM

What exactly did you do to set timing? How much did the IP move in the process of setting timing?

Long list of possibilities includes:

Need to bleed the injector lines
Clogged fuel filters
Clogged fuel tank vent
Exhaust system restriction
Disconnected or non-functioning idle control

Sixto
87 300D

Diesel911 · #9 09-16-2009, 09:21 PM

Quote:

Originally Posted by sixto

What exactly did you do to set timing? How much did the IP move in the process of setting timing?

Long list of possibilities includes:

Need to bleed the injector lines
Clogged fuel filters
Clogged fuel tank vent
Exhaust system restriction
Disconnected or non-functioning idle control

Sixto
87 300D

I have sort of the same question.

When it was running lound and nailing did it run for more than 3 seconds?

You were going to retard the timing. Did the Engine start runing for 3 second only after you retarded the timing?

With the littl information it you are having a Fuel Supply Problem like an air leak or something else is cutting of the Fuel.
I like to get a container with clean Diesel Fuel and run a longer Fuel Inlet hose to that as this bypasses anything to the rear that could cause a problem.

I do not know much about the newer engines but I remembe seeing the one of them had the Primary filter in the same housing with the Spin On Filter. There was an O-ring and the filter itself seemed to have a rubber sealing area attached to it. Perhaps those have gone bad and are leaking air.