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Old 10-25-2002, 12:08 PM
Posts: n/a
Thanks to the info supplied by several members I believe I know the solution to this problem and there is a beautiful symmetry to it. It explains everything. The two mechanics who rebuilt the engine have rebuilt hundreds of engines, but never a MB V8. They did not know and I did not know that the camshaft bearing towers are a matched set. They almost certainly mixed the towers. This would explain the sheared cam key. I had been thinking that the timing chain would explain the sheared cam key. when the valves bent, it would shear the cam key, but that is unlikely to be true. More likely, when the valves bend they stop the engine and with the automatic xmsn I never knew the engine had stopped. With the engine stopped it could not shear the cam key. Soon as I get back to the car I will check it out. Maybe there is a mark that shows which set the towers belong with.
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