3000 rpm vibration and motor mount
 

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?

In my case, no

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

bump bump bump

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.

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

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.

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.

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

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.

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

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.

Did you get ripped on brokerage and duty?

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.

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).

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.

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?

:cheers:

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

I think the 987 part is the only one you can get now from Porsche, i.e. it is OEM. I know when I asked my stealer that was the part number he came up with.

Clickman is correct :)

ALL the Boxster mount numbers supercede to the 987 number.



What tranny mounts do you have and where those checked to be good?

How is your blip throttle downshift?




B

I have the 3000rpm vibration and still have after replacing cracked mount with new 987 part one..

My gearstick also shoots forward/back a toc
uch on putting on/off gas ?

The 3000 rpm vibration thing is kind of a myth. It has more to do with engine balancing than motor mounts. The real test is as follows:

put the car in second and drive @ 3000 rpms, constant speed.

Lift off and Blip the throttle.

Do you feel and hear a read end clunk? Not a click, tap, or noise. A Clear and OBVIOUS clunk feeling, and THUNK noise. IF you do, then your motor mount is toast, like mine!

I am also fairly certain this is the cause of terrible wheel hop. Once I replace mine, I'll update you.

As for the shifter moving back and forth upon engagement, a little bit of play is absolutely normal. Remember your drivetrain is connected to the body via rubber mounts, you're always going to feel play in anything that isnt absolutely fixed to the body. That's the point! Unless your shifter is moving so much you are stuggling to grab it (lol) I wouldn't worry.

I'd sure like to know if you are right about the mount being the cause of the wheel hop. The one and only time I ever tried to rocket off the line, the wheel hop has so bad that it was more like a rodeo ride on a bad-tempered bull.

Replaced my front mount this afternoon.

Fixed the problem just like I thought it would. When I get on the gas, I no longer have a CLUNK. Furthermore, there is actually now less 'windup' as well (windup can be described as the elastic band feeling/noise when you make a bad shift).

OH and by the way, I can now officially spin my tires without any wheel hop :O

Winner :)