OM 606 Drilled too deep trying to extract a stuck Glow Plug - PeachParts Mercedes-Benz Forum

funola · #1 04-11-2016, 12:33 PM

Per dimensions of the glow plug in this ebay listing

New Genuine * TRIDON * Glow Plug TGP For Mercedes Benz E300 D E300 TD W124 W210

28 mm is the portion of the tip that extends into the pre-combustion chamber, from the flare to the glow plug hex (assumed where it snapped off) is about 2 x 28 mm. 56 mm is 2.2 inches. Did you drill more than 2 inches deep?

mikemass1221 · #2 04-11-2016, 12:46 PM

Quote:

Originally Posted by KarTek

Beyond the tip of the glow plug is the opposite side of the pre-chamber and then the head casting. If you could drill through the pre-chamber wall, you would hit coolant.

Quote:

Originally Posted by renaissanceman

Coolant in the combustion chamber means you can't run it. If coolant is coming our of the glow plug, it us also filing the cylinder and draining past the piston into the oil.

^^^Two comments I was hoping not to hear.

Quote:

Originally Posted by funola

Did you drill more than 2 inches deep?

Sounds like it was just about that length.

funola · #3 04-11-2016, 12:50 PM

I would verify before doing anything drastic. Blow compressed air in the drilled glow plug. If it holds pressure, you only have a glow plug to remove. Otoh, if you get bubbles in the coolant tank....... my condolences.