Hi,

It has happened to my engine at 90K. The parts are really very cheap- all you need is to take the valve cover off and replace the broken timing chain guide.

Anyway, all the replacement parts that I've seen are MB. I guess that it's best to make it a regular maintenance part- every 50K sounds good.

And, just has bad, are the cam oil tubes. 1992 and earlier engines have aluminum ones so there is no problem with them; later 119s have plastic ones and they definitely go bad- but you can get replacement ones make out of aluminum.

Attached is my engine with a replacement timing chain guide installed- and you can also see the oil tubes, too.

Peter C. Sessler

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