Engine Mounts: NEED HELP! 1998 E320 (car on blocks now!) - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 01-17-2008, 02:02 PM Thread Starter
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Exclamation Engine Mounts: NEED HELP! 1998 E320 (car on blocks now!)

I'm in a state of severe frustration!

Right now my 1998 E320 (W210) is up on stands so that I can replace my motor mounts. Here's what I've done so far:

1. Put front end up on drive-on ramps
2. Disconnected battery
3. Removed top engine shroud (pop-off cover)
4. Removed lower engine shroud
5. Disconnected A/C compressor and slid forward out of the way
6. Located top bolt for driver's side mount (USA version car)
7. Banged knuckles trying to free top bolt
8. Threw wrench back into toolbox and cursed up a storm

My frustration is getting to this bolt!! I have tried everything. I have purchased a 16mm Craftsman wrench with closed-end ratchet (72-tooth fine ratcheting for $23USD). Still, I can't seem to get enough play in the wrench to turn the bolt. Is there a special tool I should go buy?? I tried to find a stubby, but how can that give me enough leverage??? It's driving me crazy!!

I consider myself a good backyard mechanic and this job does not intimidate me, but this bolt has got me stumped! What is the easiest way to get it out?

HELP!!!

Johnny
California
January 17, 2008 12:30pm PST
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post #2 of 7 (permalink) Old 01-17-2008, 02:34 PM
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I'm not actually familiar with your car but have you raised the engine yet? Sometimes that gives you a better shot at it. It's a struggle on the V engines. Some you can get from below but that's tough too. My theory on this, not yet put into practice, is to get a wood one by two, couple feet long, drill 1 inch holes every couple of inches, wedge or c-clamp it into the engine compartment above the frame rail, put a two foot half inch galvanized pipe into one of the holes and use it as a lever against your rachet. Leverage seems to be the answer, that is when you don't have access to air tools.

Last edited by deanyel; 01-17-2008 at 06:04 PM.
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post #3 of 7 (permalink) Old 01-17-2008, 05:10 PM
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I might need to change my engine mounts.
I havent done anything that intense before. But i'm an avid learner, I have a spare care to drive around if i mess up the benz.
Are there any guides on how to change the mounts, DIY style? lots of pics etc...
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post #4 of 7 (permalink) Old 01-17-2008, 06:54 PM Thread Starter
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If you go to the DYI section of these forums, you find a great one with photos. Some words to help you along since I just washed my hands from the job not 10 minutes ago:

1. Get a shorty (stubby) 16mm wrench for the top bolts. I ended up using a Craftsman 16mm ratchet wrench (at Sears for $23). Its the fine-ratcheting (I think its 72-ratchets in the internal sprocket) and this will help you since its a bear to get at the top bolts.

2. Definitely take out the three bolts holding the A/C compressor and move it forward. It uses an E-12 Torx Socket. (Not a T-10 Torx). Buy these tools at Autozone since Sears is so freakin' expensive. You'll also need the E10 to take out a small bracket holding a fluid line just below the A/C compressor. I took it off to make room to get my socket into the lower bolt of the compressor.

3. Get a good shop light or good flashlight. I also have a good Snap-On extension mirror to get down and see what I'm looking for.

4. I used a Sharpie Marker to mark the front of the old mounts so I knew which side was closest to the front of the car. Just made it easier to orient myself. I then made a mark on the new ones to allow me to put them in with the correct side facing front. Just added help.

5. I weigh 180lbs and I consider myself having thin hands. If you are a monster with fat hands, forget it. Its going to be a rough job.

6. Take a chill pill a half hour before you start. You'll get frustrated. Just calm down, walk away, and gather yourself. Then start again. You'll get through it.

7. WalMart has a great set of plastic (6,000lb capacity) ramps to drive up. Buy them for $35 and they're worth every cent. I also bought some small yellow plastic wheel chocks for the back wheels at WalMart for $3 each. You'll find those in the RV section.

8. Disconnect the battery. No questions.

9. Tell your children to keep away because daddy is going to say things that might scare them.

10. Good luck.


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post #5 of 7 (permalink) Old 01-17-2008, 07:50 PM
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190E 2.3 would be quite a bit different - compressor not likely in the way, top bolt would be 17mm rather than 16. Every model is a little bit different in terms of access. The in-line engines seem to be a little roomier.
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post #6 of 7 (permalink) Old 01-17-2008, 07:57 PM
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i know, i just wanted a general overview. I'm pretty mechanically inclined. so i'll figure it out somehow.
Those ramps you got? I'm afraid to trust a ramp made out of plastic. haha
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post #7 of 7 (permalink) Old 01-17-2008, 09:52 PM Thread Starter
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Quote:
Originally Posted by cruiseoveride View Post
i know, i just wanted a general overview. I'm pretty mechanically inclined. so i'll figure it out somehow.
Those ramps you got? I'm afraid to trust a ramp made out of plastic. haha
Actually, they are pretty nice. Take a look at them and see. They have a total of 12,000GVW. They are pretty sturdy. I had my 98 E320 on them for about 24 hours (I ran out of daylight so continued the next day) and they were fine. I did put the wheel chocks down and I did put two jack stands under the front frame. I err on the side of caution. The ramps did fine.

Good luck!
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