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Forum: Diesel Discussion

12-21-2003, 11:52 PM

Replies: 11

OM 603 delivery valve seals cure rough idle?

Views: 5,165

Posted By psfred

Adjust the idle speed on setting higher if you...

Adjust the idle speed on setting higher if you can (some cars don't have the adjuster -- black "wheel" next to the brake booster. Pull out and rotate one notch CCW and see what happens).

If the...

Forum: Diesel Discussion

12-21-2003, 11:54 AM

Replies: 11

OM 603 delivery valve seals cure rough idle?

Views: 5,165

Posted By psfred

Adam: The pressure valve holder lock rings...

Adam:

The pressure valve holder lock rings prevent the holders from unscrewing due to vibration. They need to go back in the same order they were originally, not the exact same orientation. ...

Forum: Diesel Discussion

12-20-2003, 10:37 PM

Replies: 11

OM 603 delivery valve seals cure rough idle?

Views: 5,165

Posted By psfred

If you only remove the seal, you don't have...

If you only remove the seal, you don't have anything to worry about. You can remove the pressure valve itself, and the plunger sleeve on this IP comes oot the top, too, but I'd just leave well...

Forum: Diesel Discussion

12-20-2003, 08:41 PM

Replies: 11

OM 603 delivery valve seals cure rough idle?

Views: 5,165

Posted By psfred

You must beg, borrow, or steal a splined socked...

You must beg, borrow, or steal a splined socked for the pressure valve holders.

I'd do this on a hot engine, for the simple reason that it will start much easier. You must remove the injection...

Forum: Diesel Discussion

12-20-2003, 07:41 PM

Replies: 11

OM 603 delivery valve seals cure rough idle?

Views: 5,165

Posted By psfred

Cracked head will cause low compression on one or...

Cracked head will cause low compression on one or more cylinders, so this is something you need to consider. It would be best to replace it. Mine is suspect, I'm going to check for cold pressure...

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