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General Information => Troubleshooting => Topic started by: prysm on May 31, 2006, 09:34:08 pm

Title: help: basic injection pump timming
Post by: prysm on May 31, 2006, 09:34:08 pm

Does anybody know of a technuique to initially set the injection pump timming? I dont have the tools to accurately time it myself

I am almost done reassembling my engine.

I was thinking of just mounting the injection so that there is equal angle between the clockwise and counter-clockwise of injection pump mounting.
and then set the IP sprocket to the timming notch and mount the timming belt that way. Is this ok?

thanks
prysm

Title: help: basic injection pump timming
Post by: Maarten on June 01, 2006, 12:50:08 am

No, that is not ok..

There is absolutely no way to set the pump timing without the proper tools.

JUst put it in the middle or slightly towards the engine to start with, but when it runs, get it primer properly (You can ruin your engine with wrong timing).

Title: help: basic injection pump timming
Post by: prysm on June 01, 2006, 05:54:52 am

Yes, that is the plan. I just want to get the timming aproximately in the proper stting so that I can drive to the shop to get the propper timming.

So I will just put it in the middle and get going from there

thanks
prysm

Title: help: basic injection pump timming
Post by: Maarten on June 01, 2006, 05:57:32 am

And listen when it runs...  :wink:

Title: help: basic injection pump timming
Post by: prysm on June 01, 2006, 06:12:26 am

should I consider the drip method or the glow plug milli volt method described in this thread

http://www.mercedesshop.com/shopforum/showthread.php?s=e8df8ac10f32179462f736a97291b10b&t=152389

,prysm

Title: help: basic injection pump timming
Post by: Maarten on June 01, 2006, 06:43:34 am

I'm not familiar with those methods, but... an interesting read :)

The coil inside the plug generates a tinyvoltage when heated by the burning diesel, so there is a kind of temperature sensor in the prechamber which is (according to the writer on the MB forums) usable to prime the pump.

Thinking furher: higher voltage = hotter burn = more power = better mileage (last 2 applyafter good priming too)

But I think the method is not very constant and needs base/top/bottom measurements every time you check the timing.

I'm going to check this method when my 1.9 runs again :)