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  #1  
Old 10-19-2004, 02:33 AM
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Do any of you adjust your Injection Pump ?

Hey.....

Since I've had my 240D I've yet to mess with the injection pump. I heard that some people do the drip method. Good or bad idea ?

Any comments are welcomed

thanks

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  #2  
Old 10-19-2004, 05:58 AM
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Thumbs up Timing

I have read alot about setting the timing by drip method. Seems straight forward and easy. Have not done it yet. A guy on eBay was selling the drip tool a few weeks back. I am going to wait to set timing until I repllace the timing chain. Next week or two, depends on funds....
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  #3  
Old 10-19-2004, 09:39 AM
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Well for me...

I found that the drip method was quite easy. No need to buy a tool if you have an extra injector line lying around. You can make one! I set the timing on my '82 240D using this method and had great results. The reason I set it was because I had replaced the timing chain and just wanted to make sure that everything was as it should be. Get the Haynes manual. It has good instructions on the drip method.

Kevin
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  #4  
Old 10-19-2004, 10:22 AM
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We're procuring a doppler timer, screw that "drips per second" crap. Just throw the sensor over an injection line and turn the timer on (both operations can be performed with one hand, so no beer spilling hazard is risked)

Once I have one of these units (probably a few weeks), I'll offer a free timing check day here in Colo for Mercedes members.
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  #5  
Old 10-19-2004, 10:23 AM
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I made one too, but I wonder if the tool specifically made for this has a larger ID of the tubing. Cutting an old line works, but I was surprised to see how thick the tube wall was! The reason I mention it is the pictures of the drip tool in the FSM look like the tube used was much thinner, and I wonder if this would make it easier to distinguish the transition to drip rate flow.
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  #6  
Old 10-19-2004, 01:25 PM
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did you guys notice any difference when adjusting the pump ? it will definitely work on the 240D right ?
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  #7  
Old 10-19-2004, 03:04 PM
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Quote:
Originally Posted by TomJ
We're procuring a doppler timer, screw that "drips per second" crap. Just throw the sensor over an injection line and turn the timer on (both operations can be performed with one hand, so no beer spilling hazard is risked)

Once I have one of these units (probably a few weeks), I'll offer a free timing check day here in Colo for Mercedes members.
Nice! Keep us posted. I'm interested - I'll bring the beer.
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Old 10-19-2004, 04:38 PM
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I wedged a big metal bar between the IP and the block, loosened the mount bolts and made the adustments with the car running. I pushed the IP one way and the other until the engine ran the smoothest. I adjusted the ALDA at the same time.
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Old 10-19-2004, 05:17 PM
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made the adustments with the car running. I pushed the IP one way and the other

That is risky isn't it? The drip method is accurate.
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Last edited by dieseldiehard; 10-19-2004 at 06:13 PM.
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  #10  
Old 10-19-2004, 05:33 PM
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We're procuring a doppler timer, screw that "drips per second" crap. Just throw the sensor over an injection line and turn the timer on (both operations can be performed with one hand, so no beer spilling hazard is risked)


Will that work for us that don't drink beer?

Kevin
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  #11  
Old 10-19-2004, 11:07 PM
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Quote:
Originally Posted by oilslick
..........
Will that work for us that don't drink beer?
I'm sorry, but I'm afraid nothing will!
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  #12  
Old 10-19-2004, 11:23 PM
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There are really only 2 ways the injection pump can get out of time. Either the timing chain is elongated, or somebody has monkeyed with it. If the chain is elongated, replacing the chain will fix the timing.

This is a classic Rule # 1 situation. If it ain't broke, don't fix it.
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  #13  
Old 10-20-2004, 07:23 AM
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Talking The drip method works very well..

but you have to be patient and do it carefully. Finally you have to tighten the pump down each time you move it because if its not tight, you will get an erroneous reading.."flex" of the pump will throw the reading off.. I rotate it inwards until I get absolutely no flow. Then I slowly bring it back. What helps is to get a Punch or scribe and scribe marks on the pump flange where it meets the engine flange so you can get an idea of movement.

I highly believe in this method....
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  #14  
Old 10-20-2004, 05:30 PM
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Quote:
Originally Posted by Carrameow
but you have to be patient and do it carefully. Finally you have to tighten the pump down each time you move it because if its not tight, you will get an erroneous reading.."flex" of the pump will throw the reading off.. I rotate it inwards until I get absolutely no flow. Then I slowly bring it back. What helps is to get a Punch or scribe and scribe marks on the pump flange where it meets the engine flange so you can get an idea of movement.

I highly believe in this method....
There's a tool that is shown in the FSM that attaches to the IP and engine block and has an nut that will adjust the pump in either direction without the need to undo the IP lines. Now if there was some way of getting it.
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  #15  
Old 10-20-2004, 08:20 PM
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Quote:
Originally Posted by TomJ
We're procuring a doppler timer, screw that "drips per second" crap. Just throw the sensor over an injection line and turn the timer on (both operations can be performed with one hand, so no beer spilling hazard is risked)

Once I have one of these units (probably a few weeks), I'll offer a free timing check day here in Colo for Mercedes members.
Could you please point the interested toward more information about such a device? I've heard of injection timers that detect the pulse, and reference it to the pulse from the TDC sensor. I've also heard of doppler flowmeters, but never in the context of injection timing. So, "doppler timer" is a new one on me. Maybe I don't get out enough...

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