Hey...

I just changed my motor mounts and WOW what a difference. I barely get any shakes at all. However, I still need to change the transmission mount and I never changed the ENGINE SHOCK.

I feel as if the engine is shaking sideways now. Wondering if it is supposed to be that way or is something wrong ?

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Audi TT

Change engine shock.

thanks

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Audi TT

Kamil,

The engine shakes from side to side because it generates torque in pulsations at every power stroke and the torque, as well as the reaction, is a variable force around the crankshaft axis. This variable force results in a rocking motion of the engine on its mounts. At lower rpm these pulsations are at a frequency that is difficult to isolate or damp with just a rubber mount. Thus the hydraulic dampner or shock. At higher frequencies this phenomena is easier to isolate with rubber and the hydraulic dampner is less critical to your sense of the engine rocking sideways. Jim

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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

Kamil,
I had the same problem with my 300D. I had the IP timing set and no more shake, just a low level vibration. After I deal with a bad injector and replace the engine shocks that should also go away.

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84 300D 251K
87 190DT 281K - Sold
06 Ford Escape 172K
94 Ford Ranger 250K
99 Chevy Suburban 181K

Clean some of the horrible crud off the engine shocks if yours is half as dirty as mine were. I think its fairly likely that the SHOCK is OK but the elastomeric mounting at either end is shot. Look at the bottom rod and see if there is much relative motion to the shock body while a buddy rocks the engine side to side violently. It should be pretty obvious.