I need to get to work on this '93 300D I got recently so I got the following tools to start with:


A prechamber lock ring socket from Mercedes and made by Stahlwille for $22, a glow plug hole reamer from Mercedes for $73 and a prechamber remover from Zdmak off Ebay and made by SIR Tool for $47 delivered.

Don't you just love Christmas in February!

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too many w123's
84 280 SL 5 speed

Prechamber remover? What the heck are you doing, rebuilding the engine?

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

That Reamer looks pretty sweet....but not worth $73!

The lock ring socket would be handy....

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I can hear and feel by hand compression leaking out by the #3 injector so I assume the PC is loose as others here have suggested. Need to pull it out and clean it so it seats tight in the head.

Let us know how that goes. I've got a minor leak at the #1 prechamber (bubbles when wet). I'm kinda curious to see what needs to be done. Don't forget to remove the glow plug before removing the prechamber!

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1982 240D, sold 9/17/2008
1987 300D TurboW124.133 - 603.960, 722.317 - Smoke Silver Metallic / Medium Red (702/177), acquired 8/15/2009
262,715 and counting

Those heat sheilds must wear over time, I've had some bubblers also.

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Gone to the dark side

- Jeff