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Motor mount help!

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Old 05-16-2010, 11:48 AM
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Default Motor mount help!

i feel like my motor mounts are shock and maby my trans mount. how would i be able to tell? right now if i hit the gas to the floor u feel something move. most likely the motor but also my manual shifter moves a tad bit wen i hit the gas hard? what dose that sound like? and how can i check it. thank you
 
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Old 05-16-2010, 12:00 PM
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Default Re: Motor mount help!

Originally Posted by Crossfire725
i feel like my motor mounts are shock and maby my trans mount. how would i be able to tell? right now if i hit the gas to the floor u feel something move. most likely the motor but also my manual shifter moves a tad bit wen i hit the gas hard? what dose that sound like? and how can i check it. thank you
when my engine motor mount broke, the shifter will move upon hard acceleration from stop. sometimes you can hear a thud as well.
 
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Old 05-16-2010, 12:01 PM
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Default Re: Motor mount help!

so then it most likely my mounts. is there a way to check?
 
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Old 05-16-2010, 12:50 PM
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Default Re: Motor mount help!

I have never done mine, but I would think if you start lifting the engine with a jack you will be able to tell pretty quickly by looking at them if one is broken.... your description sounds like one is...

I think the transmission it mounted on the back of the engine and will torque/twist with the engine on acceleration.....
 
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Old 05-16-2010, 01:06 PM
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Default Re: Motor mount help!

To check your mount pop the hood put the car in gear and foot on brake slowly give it some gas. The motor should just barely rise on the left side. If it raises a couple of inches and drops when you let off the gas your driver side mount is broke. For awhile I thought my tranny mount was broke because when I went over a hhard bump I would get a nasty thunk right in the center console. It turned out to be a blown rear shock. There is a TSB about the shocks going bad. Replaced rear shocks and problem solved.
 
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Old 05-16-2010, 01:57 PM
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Default Re: Motor mount help!

Originally Posted by MikeR
I have never done mine, but I would think if you start lifting the engine with a jack you will be able to tell pretty quickly by looking at them if one is broken.... your description sounds like one is...

I think the transmission it mounted on the back of the engine and will torque/twist with the engine on acceleration.....
You had better be careful where you put the jack when lifting the engine. Do not use the sump pan.
 
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Old 05-16-2010, 02:24 PM
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Default Re: Motor mount help!

Originally Posted by onehundred80
You had better be careful where you put the jack when lifting the engine. Do not use the sump pan.
where should i put the jack on then?
 
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Old 05-16-2010, 02:32 PM
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Default Re: Motor mount help!

Use an engine hoist. That's the only safe way to lift this motor up and jacking it up puts the pan in danger of cracking. If you absolutly need to jack it up, cut a 2x12 to size and spread the load of the engine over the whole board but remeber, as you lift it up, more and more pressure will be moved to the back of the pan so only lift it up a little. You don't need to get it up very far and if you can get under it while lifting the engine, you'll be able to see in there. It may be that dampener and not the mount that is bad.
 
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Old 05-16-2010, 03:04 PM
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Default Re: Motor mount help!

Originally Posted by rcompart
Use an engine hoist. That's the only safe way to lift this motor up and jacking it up puts the pan in danger of cracking. If you absolutly need to jack it up, cut a 2x12 to size and spread the load of the engine over the whole board but remeber, as you lift it up, more and more pressure will be moved to the back of the pan so only lift it up a little. You don't need to get it up very far and if you can get under it while lifting the engine, you'll be able to see in there. It may be that dampener and not the mount that is bad.
what is a dampener? how would i kno if that is bad or not?
 
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Old 05-16-2010, 03:05 PM
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Default Re: Motor mount help!

Originally Posted by Xray
To check your mount pop the hood put the car in gear and foot on brake slowly give it some gas. The motor should just barely rise on the left side. If it raises a couple of inches and drops when you let off the gas your driver side mount is broke. For awhile I thought my tranny mount was broke because when I went over a hhard bump I would get a nasty thunk right in the center console. It turned out to be a blown rear shock. There is a TSB about the shocks going bad. Replaced rear shocks and problem solved.
i did this. i had to heel toe it cause it manual but my passenger side of the motor dips down and the driver side rises when i put a load on it. so that means a bad mount?
 
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Old 05-16-2010, 03:15 PM
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Default Re: Motor mount help!

the best way to determine if the mounts are bad is a visual inspection. you need to get the car up go under and look at the mounts. they are liquid filled so and tears or breaks in the rubber would mean a bad mount
 
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Old 05-16-2010, 05:49 PM
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Default Re: Motor mount help!

How much did it raise? It is normal to move a small amount as it stretchs the drive side and compresses the pass. I did not know they were liquid filled so I would def do a visual inspection and look for any tears or fluid like 32 suggested.
 
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Old 05-16-2010, 06:05 PM
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Default Re: Motor mount help!

i hope you can see the pics in this thread. geat shots of a good and a bad mount
Replacing engine mount - Benzworld.org - Mercedes-Benz Discussion Forum
 
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Old 05-16-2010, 06:41 PM
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Default Re: Motor mount help!

Originally Posted by 32krazy!
i hope you can see the pics in this thread. geat shots of a good and a bad mount
Replacing engine mount - Benzworld.org - Mercedes-Benz Discussion Forum
It appears without MB membership the photos won't open and are now viewable
 
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Old 05-16-2010, 07:39 PM
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Default Re: Motor mount help!

Originally Posted by VALKRYDERGUY
It appears without MB membership the photos won't open and are now viewable
i emailed the guy on benzworld and asked he email me the pics so i could post them here. maybe it wont take to long
 
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Old 05-16-2010, 07:46 PM
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Default Re: Motor mount help!

Here you go.... I just copied them....







[IMG]file:///C:/DOCUME%7E1/MICHAE%7E1/LOCALS%7E1/Temp/moz-screenshot.png[/IMG][IMG]file:///C:/DOCUME%7E1/MICHAE%7E1/LOCALS%7E1/Temp/moz-screenshot-1.png[/IMG][IMG]file:///C:/DOCUME%7E1/MICHAE%7E1/LOCALS%7E1/Temp/moz-screenshot-2.png[/IMG]
 
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Old 05-16-2010, 07:47 PM
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Default Re: Motor mount help!

I missed one.... here is a good mount....


 
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Old 05-16-2010, 11:03 PM
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Default Re: Motor mount help!

Originally Posted by MikeR
I missed one.... here is a good mount....


So why not add it to the others?
Copying seemed the simple way to add them here.
 
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Old 05-17-2010, 07:03 PM
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Default Re: Motor mount help!

thanx mike!
 
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Old 05-18-2010, 02:49 PM
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Default Re: Motor mount help!

i cant view the pics of a good or bad mount?
 


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