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Check those engine mounts
This came off of my 40,000 mile 2000 Boxster S 6-speed. The inner portion of the mount is almost completely seperated from the outer housing. This car has seen several standing-start acceleration runs in competition (ProSolo) so it's not surprising that it's in such bad shape.
Symptoms were a noticable vibration when simultaneously cornering and accelerating or decelerating. Also rough shifting, expecially in cold weather. I do not know exactly why shifting improved as much as it did since the transmission and engine are linked and the transmission is shifted by cables - but it did. Replacement was not difficult and took about an hour and a half. No special tools required. http://vorlon.case.edu/~jpv/boxster_mount/Mount1.jpg http://vorlon.case.edu/~jpv/boxster_mount/Mount2.jpg |
Hi,
Looks like you got your money's worth from that one. Did you check to see what the other one and tranny mounts look like? The give that this one experienced had to come from one or all of those... Happy Motoring!... Jim'99 |
What did you replace them with? Hopefully with some Nylon ones instead? :cheers:
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I'm restricted by my competition class rules, so I went with stock. However I do have a spare mount that a fellow ppbb member sent me, which I gutted and urethaned with 80 hardness urethane. I'm going to do the same to the mount that came out of my car. And yes, the other two mounts are going to get a check this weekend. |
If that's true then why are people always buying these Polyurethane motor mounts and bushings like these? These mounts are designed to limit the travel, reduce the chances of breakage, and put the power to the wheels.
http://i5.photobucket.com/albums/y15...-13-1901_w.jpg |
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As I mentioned, you can make your own urethane motor mount using the old mount. |
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Hi,
Polyurethane Mounts and Bushings aren't always a natural substitute for Rubber. In many instances the flexibility of the Rubber is factored into the equation, especially for some suspensions. Firm it up w/ Poly and you can actually negatively impact the function of the piece or system... Happy Motoring!... Jim'99 |
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It's so easy to take your own mount and urethane it anyway. For $30 in materials and a couple hours of your time it seems a worthwhile DIY. |
This is a common upgrade on a 911, check out www.wevo.com for best in class. Maybe we could get them to make some 986 parts like a shifter as well as the mounts.
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how much are new motor mounts anyways?
also, how hard is it to dissassemble whatever needs to be dissassembled to see the condition of them? thx in advance |
A new mount costs around $220.
The mount on later cars has end caps to prevent the bushing from sliding out of the housing. It makes it nearly impossible to check to see if the rubber is cracked. On early cars you can probably remove the access panel behind the seats and check the condition. |
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