New Motor Mounts Today

Discussion in 'General Motoring' started by Randy G., Sep 22, 2005.

  1. Randy G.

    Randy G. Guest

    [following based on 1990 245 with a stick shift tranny]

    I replaced all three motor mounts today- actually the two motor mounts
    and the tranny mount. They had not separated, but the right one was
    somewhat deformed as well as the tranny mount. I will say that this is
    not a job to tackle lightly because you will be working under the
    motor with (at times) little holding it in place. I did one side at a
    time- a fall-back to my climbing and rescue days when we were taught
    to always have three good holds at all times (pucker factor did not
    count).

    The job becomes more difficult as the existing mounts become more worn
    because they distort and place the drive train in an incorrect
    position, and moving it back into position to line the bolts up can be
    a real challenge. You NEED to have a floor jack to do this job (IMO).
    I placed a pair of ramps under the front wheels to keep the car in
    place. Jack stands could be a problem here because you need to jack up
    the motor and it can lift the car. If a jack stand unloads and you
    kick it, the car can come down leaving a stand imprint in a floor or
    rocker panel.

    The right side is fairly easy because the engine-mounted side of the
    mounting can be left in place. All you need to do is remove the
    engine-side mount nut and the three lower nuts that hold the mounting
    base to the cross member. jacking the motor up with a wood block as
    the oil pan flange at that side will suffice to tip the motor
    sufficiently. be sure to always place hands and fingers as if the
    motor could fall off the lifting jack! Using pliers to retrieve the
    loosened assembly is a good idea!

    The left side is another matter. This is where the floor jack and some
    Tetris experience comes in handy. There isn't much room to work and
    the entire mount (upper and lower with the rubber portion) needs to be
    removed as an assembly. That's not a problem- getting it all back in
    there is another matter. It takes some creative jacking to position
    the motor correctly to get the three upper bolts in place.

    The tranny mount is a piece of cake. Remove the rear nut holding the
    rubber mount in place. Support the tranny fully and remove the two
    bolts holding the cross member on the driver's side then loosen the
    two on the passenger side and the cross member drops away. A box end
    wrench can access the nut holding the rubber mount to the tranny
    bracket. Put it back together in the opposite order, and Bob's your
    Uncle, or maybe your aunt... ;-)


    __ __
    Randy & \ \/ /alerie's
    \__/olvos
    '90 245 Estate - '93 965 Estate
    "Shelby" & "Kate"
     
    Randy G., Sep 22, 2005
    #1
  2. Randy G.

    Randy G. Guest

    ....snip

    Took the 240 for a nice drive today and what a difference the new
    motor mounts made! Even though the mounts were only slightly deformed
    (at least compared to a lot of pictures I have seen) and they had not
    at all separated, the (manual) tranny now shifts a LOT smoother and
    easier! Obviously, a little shifting of the drive train from its
    intended position puts a lot of strain on the external portions of the
    manual shift linkage.


    __ __
    Randy & \ \/ /alerie's
    \__/olvos
    '90 245 Estate - '93 965 Estate
    "Shelby" & "Kate"
     
    Randy G., Sep 22, 2005
    #2
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