Help with engine mounts
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Member
Joined: Nov 2017
Posts: 198
Likes: 20
2008 BMW M5, 2004 E55 AMG (RIP)
Help with engine mounts
Hey guys, I looked at all the good diy’s here for engine mounts and began the process today. I’ve got the steering rack dropped and the bottom 13mm bolts on the engine mounts off, as I understand it the next step is to jack the engine up a little to release some tension on the top bolts. I have a block of wood on the rear one of the two low points of the oil pan, only when I start to pump the jack it begins raising the entire car instead of just the engine. I immediately stopped when this happened and lowered the jack because I didn’t want the weight of this heavy car on the oil pan, but I must be doing something wrong. Did I miss undoing something that could allow the engine to raise independently from the chassis? Any help would be appreciated.
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Joined: Jun 2014
Posts: 1,036
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From: Portland, Oregon
2019 Jeep Trackhawk, 2002 CLK55, 2014 911 Carrera
I did one side at a time. Remove both upper and lower bolts from the mount (use the special tool for the top bolt), then use a 2x4 and a floor jack, offset to one side of the car (but still on the oil pan) and lift that side of the engine.
FWIW, I was also doing headers at the same time so my mounts came out easily through the back, where the exhaust would normally run.
FWIW, I was also doing headers at the same time so my mounts came out easily through the back, where the exhaust would normally run.
Member
Joined: Oct 2015
Posts: 234
Likes: 43
From: Bremerton, Wa
2005 E500 4matic wagon, 2006 AMG E55, 2009 Smart Fortwo
What you're describing makes sense, since as you lift the engine, you're also taking weight off the suspension allowing it to rise. At some point, the suspension will stop unloading at the engine will continue to rise. I changed out my mounts at the same time I installed my headers. If your mounts have failed, be prepared to catch any remaining hydraulic fluid. I wasn't prepared, and made a foul-smelling mess.
Member
Joined: Jan 2017
Posts: 96
Likes: 30
2006 E55 AMG
What you're describing makes sense, since as you lift the engine, you're also taking weight off the suspension allowing it to rise. At some point, the suspension will stop unloading at the engine will continue to rise. I changed out my mounts at the same time I installed my headers. If your mounts have failed, be prepared to catch any remaining hydraulic fluid. I wasn't prepared, and made a foul-smelling mess.
Also, no need to take any load off the top bolts. In fact, I do those first since they are the most difficult to get to, especially without the special MB tool.
