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Old 08-02-2002, 04:20 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,118
Try the Diesel Discussion forum.

On my OM603 which is pretty much the same engine as your OM602, there's a port towards the rear of the IP that lets you insert a lock which holds the pump to the housing. The lock engages when the crank pulley reads 15-degrees ATDC of #1. If the IP is off the engine, you'll have to pop the valve cover to be sure it's ATDC of #1.

If I understand the manual, you have to turn your engine to 15-degrees ATDC and install the IP with the lock in place. That should get you as close as you can without the mega bucks electronic timing tool.

91 300SE
87 300SDL
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