3000 rpm vibration and motor mount - 986 Forum - The Community for Porsche Boxster & Cayman Owners

clickman · 12-07-2010, 10:33 AM

I'm at 58,000 miles.

Before I put the car to bed for the winter, I noticed substantial movement from the exhaust. So my motor mount is due.

I've had the infamous 3000 rpm vibe off and on.

Have those of you that have changed out your mount seen the vibration go away?

spongebob · 12-07-2010, 10:40 AM

In my case, no

BerneseMtnDog · 12-07-2010, 03:13 PM

I sure did and the car shifts much nicer now too. I think there's an inherent vibration or resonance at that rpm and the bad motor mount really allows it to be felt. I think it's always there but with a good mount you don't really feel it.

Steve
2000 2.7L

clickman · 12-09-2010, 03:26 PM

bump bump bump

timothy · 12-09-2010, 04:00 PM

BerneseMtnDog is spot on. A month ago I replaced a Wevo semi-solid with a new 987 mount. Vibration with the stock mount is *almost* unapparent. To ask if it is complete gone depends on the sensitivity of your posterior. I noticed it very slightly only a few times but coming from a semi-solid the stock mount feels downright plush.

Bobiam · 12-13-2010, 07:50 PM

It will fix your 3000 rpm shimmy and make shifting and clutchwork from a stop much, much better. I used the stock 987 mount which is more than adequate.

jaykay · 12-20-2010, 09:06 PM

what is the part number and year for a 987 mount that will fit a 2000 3.2 S.

clickman · 12-20-2010, 10:30 PM

Top of the page:

http://www.pelicanparts.com/catalog/shopcart/986M/POR_986M_ENGmis_pg1.htm#item0

I'd try Suncoast in Florida too. However, you, like me, have the problem of trying to get parts north of the 49th without taking it up the wazoo on duty, shipping etc.

I have yet to call the local stealership here on the Island to see how badly they want to work me over. I'm sure it'll be enough to piss me off and still more than the total cost from the sun belt. Let us know where you get it from.

bmx672 · 12-21-2010, 05:27 AM

I did my motor mount mid summer. I had the vibration at 3000k for two summers and decided I HAD to do it! It was very easy with the right instructions and taking great care. I used 6 jack stands... under the engine too. DO NOT depend on a floor jack to hold the engine in place for any amount of time!!!
The new OEM mount fixed the problem! Not 100%, but almost! Night and day difference! The old mount was completely cracked inside.

clickman · 12-21-2010, 10:24 AM

Quote:

Originally Posted by bmx672

I had the vibration at 3000k.

Wow, now that's really doing some revving. I had no idea the Pcar could do that!

9eighty6 · 12-21-2010, 11:02 AM

I had Pedro's Enthusiast mount put in bythe man himself yesterday. It resolved my vibrations (for the most part) and made shifting much cleaner and easier.

Just my 2c.

ekam · 01-14-2011, 06:01 AM

I think mine's starting to go too. Just got my 987 mount from Suncoast yesterday. Will post update after install.

harryrcb · 01-14-2011, 04:01 PM

My .02 I replaced my mount 15k ago with the 987 and am in need of another mount. I'm going with Pedro's race mount and try that. I do drive hard, lots of DE's so in my opinion the stock 987 doesn't cut it for me.

clickman · 01-14-2011, 10:43 PM

Quote:

Originally Posted by ekam

I think mine's starting to go too. Just got my 987 mount from Suncoast yesterday. Will post update after install.

Did you get ripped on brokerage and duty?

ekam · 01-15-2011, 05:15 AM

Ask them to ship USPS, you'll have to pay taxes when you pick it up at the post office.

clickman · 01-15-2011, 07:15 AM

Quote:

Originally Posted by ekam

Ask them to ship USPS, you'll have to pay taxes when you pick it up at the post office.

Interesting. The last time I bought something from them (a while ago) they said they wouldn't ship USPS because of inability to track the package and potential damage issues or something like that.

ekam · 01-15-2011, 07:36 AM

They've always been able to send small parts thru USPS, if you ask. I wasn't sure about the motor mount due to its weight and size but they said ok even tho shipping cost wasn't cheap.

OR it may have something to do with me spending a fortune with them over the years, but those guys are great and they always know what I'm talking about (as supposed to my local dealer which I have to spend 10 mins just trying to explain them what I'm looking for, and they'll usually say they don't have it stock and I have to pick it up in a few days).

clickman · 01-15-2011, 07:53 AM

I did ask, but I'll certainly be asking again!

Without shipping costs, I'd save about $70 on the motor mount, not a biggie if I'm only buying one thing from Suncoast (distribute shipping cost).

But I just price-compared the water pump against my stealer, who wants $500 for the pump and gasket, vs $230 from Suncoast. Sheesh.

coolbreeze551 · 01-16-2011, 10:16 PM

I also am having the same problem with my 2001 non-s. I hear a lot about the 987 upgrade. I am not sure if it is right for me. I do not track my car but I do have more of an "aggressive" driving style. There are a lot of threads on this subject but no real definitive answer that I can find. Can someone tell me if the 987 upgrade is better than an OEM replacement or is it not as clear cut as that?

Dragonwind · 01-17-2011, 02:47 AM

Yes a new motor mount will fix some of the vibration issues, but in many cases, including mine, it is not coming from the mount. I suspect it is time for a new flywheel but others have had that changed only still have the vibration. One person solved it (with repeated success) but adjusting the height of the exhaust. I'm not changing mine till later this year so I'll know for sure then.

Chris