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  #1  
Old 04-11-2012, 10:31 AM
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Join Date: Oct 2006
Location: Indian Waters, Florida
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Motor mounts

í91 420SEL. Getting ready to reinstall my A/C compressor and thought it might be a good time to replace the engine mounts. So itís on the lift and Iím staring at right side mount scratching my head trying to figure how this thing comes apart. The big single bolt from underneath, easy. The smaller outboard bolt on top, easy. The inboard smaller bolt, no access at all?
The arm to the engine mounting plate which also is the engine shock mount covers it.
The four hex bolts on the engine mounting plate could be removed except for the upper left one that bottoms out on the mount itself.
Iíve searched the forums. Nada.
Has anyone done this, or have a link. Iím thinking the W126 V-8ís may all be the same.
Iím stumped. I have the FSM CDís but havenít looked at that yet. Looking for some real life experience.

TIA
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Old 04-12-2012, 01:12 AM
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I'm having a little trouble visualizing this at the moment, but I seem to remember always doing the 126 mounts and shocks at the same time. I think maybe if you take the shocks off first you can get to it. I haven't done one of these for a while, so I may be wrong...
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  #3  
Old 04-12-2012, 09:50 AM
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Remove large allen bolt under car, remove small shock mount at bottom, jack up motor , wood under trans /engine surface where they both join, remove upper metal shield, use 1/4 rachet with 6mm allen socket , take mount out , replace.done
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  #4  
Old 04-12-2012, 09:54 AM
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Here's the FSM document on doing the 420's engine mounts:

http://www.startekinfo.com/StarTek/outside/12253/disc%202/program/Engine/107/M117_56/22-211.pdf
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  #5  
Old 04-12-2012, 02:13 PM
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Motor mount

Thanks all:

My problem was just the inboard 6mm mounting bolts. I found the secret from LANDSCAPE who had just done his a week before (on that other forum). On the W126 V8 gasser, even with the engine jacked up, there is very limited hand or wrench space. Used an L-shaped Allen wrench. 1/8 turn at a time. Very, very, BORING!
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