That's exactly what my engine just started doing like 3-5 days ago....
I was thinkingit was something to do with running the veggie oil, but hte oil gauge was jumping a bit and the engine was jumping....and looking at my engine mounts they look fine....
I'll try adjusting it...and if not I'll order one too...

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'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."