M104 sudden lifter(?) noise

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M104 sudden lifter(?) noise

03-19-2009, 12:24 AM

bsettlefl

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Join Date: Apr 2006

Posts: 12

M104 sudden lifter(?) noise

Literally overnight my 93 300E 2.8 started up with a slight stumble and louding tapping noise. Compression tests OK, stethoscope doesn't identify a real smoking gun, but 5 and 6 exhaust valves seem loud. Bottom end sounds OK. Is it normal for lifters to go out this suddenly or am I chasing the wrong thing?

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