Engine Mount

Turd · Turd's Garage

So I just pulled out my engine mount from my 2001 Boxster S at 50,000 miles. Sure enough the rubber mount was cracked and chipped. I hope the new rubber mount solves my sticky shifting. The rubber gaskets or dirt shields (2) one on each side of the rubber mount (about 3" by 2" by 1/4 inch thick rubber with the center cut out to fit part of the rubber mount.) don't fit my new mount. The shape is slightly different. Were there supposed to be new rubber gaskets/shields with the new mount? Was I supposed to order them separately? Does the new mount not require the 2 rubber pieces? Thanks for any advice.

seventythree · 07:19 AM

On a Boxster, I doubt changing the motor mount, or transmission mount, will have any effect on your shift quality. Boxsters sport cable shifters, which can take up a lot of slop before the shifting precision is affected.

Shifting problems due to worn out engine/transmission mounts are limited to cars that sport a shift linkage such as 914's and early 911's.

The part you are asking about is called a "stop" and the new P/N is 9A1-375-257-01. They are pretty pricey for what they are!

BerneseMtnDog · 01-14-2013, 07:54 AM

That's wrong. It's extremely common for a new motor mount (when the old one had deteriorated) to solve poor shifting quality. I certainly did on mine.

Steve

seventythree · 01-14-2013, 09:08 AM

Quote:

Originally Posted by BerneseMtnDog

That's wrong. It's extremely common for a new motor mount (when the old one had deteriorated) to solve poor shifting quality. I certainly did on mine.

Steve

I guess we can all learn something new everyday. It'll be interesting to see what the OP reports back though.

Turd · Turd's Garage

I may have got a little impatient as I forced the old cushions/motor mount stops on to the mount shaft. Looks like they should work. I put the engine mount back in the Boxster now. I hope it will be okay! Anything I should worry about?? It would sure be nice to see some suggestions when ordering parts such as an expansion of the "people who ordered this also ordered this". Many of us are rookie mechanics. I don't think I was aware of the cushions when I ordered the mount. Or I thought I could just reuse the old ones (which don't fit quite right). I will report back about shifting smoothness in March when I get Turd back on the road. It now has new engine and transmission mounts. Now on to the brakes. I hope you are correct about the shifting "BurmeseMountaindog".looking at the cracks, they don't look bad enough to cause much shifting trouble.

Meirschwartz · 01-14-2013, 01:54 PM

hi turd.
sorry for jumping in too late, but you could have cut the rubber cushions to fit.
look at post 32.
winter project - Page 2 - 986 Forum - for Porsche Boxster Owners and Others

this way or the other, by looking at it, it doesn't look like those rubber pieces has any important job to do.
i don't think they get in contact with any other moving part.

Turd · Turd's Garage

Thanks Meirschwartz. That's essentially what I did, but without the cutting. It didn't take a lot of squeezing to press it over the different shaped shaft. It looks as those "ears", as someone else referred to them, will do fine the way I did them and the fellow in your link did them. Now I can relax a little bit in that somebody else has ventured there before me! I love that jack his wife bought him. I have been eying up the hoist that you can drive another car under that markets for about $2,200.00. My garage in my home has about a 20 foot ceiling. I'd love to do my "hobby Boxster" work on my feet rather than my back. Then again every guy in my neighbourhood would all of a sudden be my best friend!

Meirschwartz · 01-14-2013, 02:44 PM

Quote:

Originally Posted by Turd

Thanks Meirschwartz. That's essentially what I did, but without the cutting. It didn't take a lot of squeezing to press it over the different shaped shaft. It looks as those "ears", as someone else referred to them, will do fine the way I did them and the fellow in your link did them. Now I can relax a little bit in that somebody else has ventured there before me! I love that jack his wife bought him. I have been eying up the hoist that you can drive another car under that markets for about $2,200.00. My garage in my home has about a 20 foot ceiling. I'd love to do my "hobby Boxster" work on my feet rather than my back. Then again every guy in my neighbourhood would all of a sudden be my best friend!

LOL!
yes, the guy in the post is very lucky to have that wife of his.
he is also very smart and handsome.

by the way, i read many posts of people not using those "ears" at all.
so you can be relaxed.

tomk · 01-14-2013, 04:22 PM

I installed a 2 post lift about 10 yrs ago in my shop, I highly recommend it. It makes this hobby as gentlemanly as it gets. And yes, I am popular with my other mechanic buddies.
Regarding the effect on shifting with a trashed mount it should be less than with shifter rod system but there is still some effect, so 73 and mountain dog are both right, imho.

Turd · Turd's Garage

Okay Meirschwartz now I get it that you are the lucky guy with the wonderful wife. Do share with us other Porsche do it yourselfers what it takes to convince a wife that a lift is a good thing?! You seem to be more mechanically able than me. In hindsight how was the engine removal/replacement? I have this real desire to do it in a future winter maintenance session. When my clutch goes one day I think I'll carry on with yanking the engine just so I can say I did and to show it who's boss. I should read the rest of your posting but did you do the Intermediate Shaft Bearing upgrade while you were in there? Was it as easy as it looks on YouTube? Enjoy your Boxster in Florida. All of ours are hibernating in garages or being eaten alive by road salt for another 2 months.

Meirschwartz · 01-15-2013, 02:02 PM

Quote:

Originally Posted by Turd

Okay Meirschwartz now I get it that you are the lucky guy with the wonderful wife. Do share with us other Porsche do it yourselfers what it takes to convince a wife that a lift is a good thing?! You seem to be more mechanically able than me. In hindsight how was the engine removal/replacement? I have this real desire to do it in a future winter maintenance session. When my clutch goes one day I think I'll carry on with yanking the engine just so I can say I did and to show it who's boss. I should read the rest of your posting but did you do the Intermediate Shaft Bearing upgrade while you were in there? Was it as easy as it looks on YouTube? Enjoy your Boxster in Florida. All of ours are hibernating in garages or being eaten alive by road salt for another 2 months.

i told here she needs to come and check on me every half an hour when i work on the car, just to make sure the jack stands didn't collapsed, and i'm crashed under it

yes i did replaced the IMSB RMS flywheel and all clutch components.
i didn't get a chance to update the thread yet.
it is as easy as it looks on the video, but i have to admit some parts of my body was shaking while doing the bearing (and i'm not talking about my hands).
i did have some moment of frustrations, when i manage to mess up 2 RMS.
between the holidays and my work, i lost two weekends before completing this task.
i was lucky to be able to put back the trans by myself last weekend, and this weekend i put all other parts back and drove it for the first time.
clutch feels awesome.
just one correction, the engine stay in the car. the transmission needs to be removed.