I am currently having my head gasket replaced on my 1987 300D Turbo
(124). The mechanic tells me that the wall where the gasket sits
between cylinder 5 and 6 is only as thick as a dime where as the
others have normal thickness, which is probably why the engine ran
hot. That isn't where the head gasket blew out actually though, even
though the other walls in similar places look normal -- it blew out on
another cylinder. Between 5 and 6 though he says there are like
gouges out of the top portion of the cylinder wall, due to heat he
suspects. He says he knows it was not caused during this latest time
it overheated as it looks like the previous owner replaced the head
gasket and redid the head and valves, but says he is concerned that
area will blow through at some point and suggests replacing the
Nonetheless, I'd like to get it running again with this engine because
even though it has those gouges it was running great before it failed.
Is there any way to fill those gouges and/or increase that cylinder
wall thickness to its appropriate thickness? Perhaps JB Weld??