PeachParts Mercedes-Benz Forum - how to check/tune ip timing on an OM606?

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- - how to check/tune ip timing on an OM606? (http://www.peachparts.com/shopforum/diesel-discussion/300053-how-check-tune-ip-timing-om606.html)

Couple notes of caution:

The timing tool will NOT ride around on the "governor" (no governor on OM606.962) and snap into place because the ramp up on the edge of the device is too steep to push it up and out of the way.

Too, you have to only move the engine clockwise when lining up the locking device. If you overshoot, you have to turn the engine around 2 more times rather than backing it up.

Quote:

Originally Posted by KarTek (Post 2749180)

Correct. However, there is about a quarter inch either way that the tool will ride on the tip of the blade, and snap in. The first time I used one of these tools (rented from a local Euro auto repair), I got the blade close, and turned the crank the slightest amount and heard a "snap" as the tool engaged. But you are correct, in that one should not insert the tool and then turn the crank.

Quote:

Originally Posted by KarTek (Post 2749180)

Couple notes of caution:

Too, you have to only move the engine clockwise when lining up the locking device. If you overshoot, you have to turn the engine around 2 more times rather than backing it up.

I learned this one the hard way. Turn ONLY clockwise!

Quote:

Originally Posted by ROLLGUY (Post 2749142)

Yes that looks correct. However, I think the crank is put at whatever degrees BTDC for installing the pump with the timing pin holding the governor.
At least that was what I did on the 2.2. I think it was 24 degrees BTDC.
If your engine is together, you can check where the timing is at now by removing the plug on the gov housing, and lining the blade in the center of the hole. Look at the crank pulley and note where the pointer is. The A/B light does this exact thing, only much more accurate. The professional timing tool is spring loaded, and snaps in when the blade lines up with the slot.Here is an ebay listing with photo:

http://cgi.ebay.com/ebaymotors/Mercedes-Diesel-Engine-Injection-Pump-Pin-Timing-Tool-/110695171365?pt=Motors_Automotive_Tools&hash=item19c5f24525

Excellent! The engine is together currently and I hope to keep it that way :) Now I understand that your alignment was based on a pump install. I will keep that in mind if/when I decide to replace the o-ring and/or pump. For now I just want to know where my timing is compared to ideal.

Thanks for the link to the ebay listing. I had seen this tool before, but I was unsure how to use it. Now it makes sense!