Finally, i started the project and have the head off....everything ready to go back in place....except, little guide sleeves for the rocker assemblies...the dealer may have them today (Sat.) otherwise i need to wait till Tues.!!!!

I started the job on Thursday....my goal was to immediately pull the prechambers to inspect them so if i needed a new one I could order Thurs and probably have by Fri. I was in such a hurry to remove them that I pulled the first prechember out BEFORE I REMOVED THE GLOW PLUG!!!!!!! No wonder it was a little difficult....it sheared the tip of the glow plug right off with almost no damage to the prechamber. After that I slowed down and took my time.

So far so good.

Mark

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1984 300TD Wagon, 407,800 mi (current daily driver)
1985 300DT Sedan, 330,000 mi (gone to that great autobahn in the sky)

How do you remove the pre-chambers? Can it be done with the head still fitted to the engine? Is there a special tool? some form of slide hammer? Im working with the 5 pot 617 engine.

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http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....

Yes, there is a special tool -- it screws into the prechamber and has a fitting to unscrew the lock ring.


Beg, borrow, or steal one -- it is very difficult to remove the prechambers without it. Never, never, ever, pound on the part the sticks out of the bottom of the head -- if you swage it out, it will be impossible to remove!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

I think there are two tools , one to unlock the lock ring... and then one to pull the precombustion chamber... ( two styles of this are available..... one screwing in and using a slide hammer to force it out.... the other a combination of screws and threads which pulls it out ) ...

Those guide sleeves... are those the ones which protect the valve stem seals when they are being installed ? Greg