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

renaissanceman · #11 04-12-2016, 01:16 PM

Quote:

Originally Posted by funola

This prechamber diagram is from a 190D and may resemble your 606 prechamber. Per Kartek, you would have had to drill through the glow plug then through the opposite side of the pre chamber into the aluminum head casting for coolant to leak into the pre chamber. In that case, the set screw is not going to help....it will hydro lock.

Two cases I see:

1.) he drilled all the way through the GP, opposite side of the prechamber and through the AL wall of the head into the coolant jacket. A set screw would not cause hydrolock -- it would plug the hole on the opposite side of the prechamber.

2.) The drilled hole was off axis enough to start cutting into the head before reaching the tip of the GP, and cut into the water jacket. If this is the case, there should be little or no coolant in the prechamber or cylinder. This may be able to be patched up too. I'm hoping Mike will post photos from the borescope so we can see/help.

Quote:

Originally Posted by funola

...What were you thinking?

Probably that he was tired and frustrated and thought hewas doing what he should do. Don't beat him up more than he already is doing to himself.