[blue968]

Does the transmission have to be removed in order to access the bushing??
Thanks for the pics, looks different than the Clark's Garage image.

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[flash]

clarks is probably for a 944 - i try to avoid that site when it comes to model specific stuff - there are WAY too many errors

i don't know if it has to be removed, as i have never seen the bushing in question

i'd call rs barn

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[jimmywhisker]

Hi,

Anyone tried one of these?

http://cgi.ebay.com/ebaymotors/Porsche-944...sQ5fAccessories

Ciao!

Peter R

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[flash]

bzzzzzzzzzzzzzzz

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[blue968]

HI Guys,

I was able to track down the linkage today and removed it from the car and inspected it. Well I have to say the plastic bushing is definitely the culprit. I called Local Porsche dealer ship here in R.I. and they wanted $295 for it, I nearly S---T my pants, I then called Sunset and they had it for $180 better than 295. Unfortunately you cant order just the bushing, it comes with the entire linkage see attached picture #21. That is the reason why its so much money, so needles to say I broke down and ordered it. This shift knob is getting expensive LOL.

Anyway I put it all back together but I greased everything with heavy grease and virtually no vibration now!!!! I am very confident when the new bushing comes in there will NO buzzing at all. As it stands you have to put your ear up to the shifter and rev it up quickly and you hear a slight vibration at the same 2K area.

The job really is not that bad, need a swivel socket (If remember correctly it was a 13mm) to access the bolt holding the plastic bushing to the shift fork. Have to get by feel, cant see it. That was the hardest part but other than that it a piece of cake and well worth the time.

I had spent hrs trying to come up with something to isolate the shifter to the shift rod and all along it was the bushing. Much easier to replace the bushing or at least grease it up.

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[DaveN]

Great find! Now one has to remove that bushing BEFORE they order a knob to determine if the cost will triple or not [img]style_emoticons/<#EMO_DIR#>/sad.gif[/img]
I'm thinking we cut up a $.10 strip of neoprene dive suit and stuff it in the hole instead and change it every 2 years. I need something to do in the winter when she is on the jack stands anyways. [img]style_emoticons/<#EMO_DIR#>/rolleyes.gif[/img]

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[flash]

it's not a soft material in there - it needs to be pretty hard to maintain the geometry

now i get to get in there and look at if i even have one anymore, as i have a rear mounted short shift kit

oh goody - another project

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[blue968]

Yes you are correct its a hard plastic, and mine was pretty worn with allot of play on the shaft.

Prepare to get dirty, ha ha

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[Ryan]

OK am I wrong or is this not a replacement for that part?

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[Ryan]

Bump...I really wonder if this is the fix

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[blue968]

Sure Ryan chime in now, HA HA
Wish I knew the Barn had it before ordering the factory one. I asked my local and Sunset Porsche if I could order just that piece and they replied no.
As I mentioned earlier just by greasing the linkage makes a night and day difference with a real sloppy bushing. I really feel confident that the new bushing will solve the problem.
I will let you know when it comes in, I can change now in about 20 minutes now that I had in and out a few times.
(Installed upside down the 1st time and had to take it all apart to reinstall, O well now I know how not to install it.)

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[Cloud9...68]

Ryan,

Good question (although I see that Blue968 has already answered). But I have to wonder - since ther Stuttgart Motorsports shift block is made of metal, vs. the hard plastic of the stock bushing (I wonder why it's called a shift block, vs. a bushing...), if it would cure the rattle as effectively as the stock plastic piece, when a lighter-than-stock shift knob is used.

On a related note, I wonder if a car with a solid aluminum flywheel would have a more severe case of the aftermarket shifter buzz than one with the stock DMF.

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[PorscheDude]

I have a brand new Stutgart shift block if someone wants it. $55 shipped in the lower 48.

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[flash]

blue - write up a DIY - take pictures

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[blue968]

HI Flash,

I will do my best with a DIY, if its Ok I will e-mail it to you to tweek before posting. Im not very computer savy.
I will do it as soon as the new part comes in.

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[flash]

happy to

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[flash]

ok - i got under there and took a look - i don't have that bushing, because i have a rear mounted short shift kit - that's the good news

the bad news is the spherical bearing in the kit has worn, and it's not replaceable, and there is a considerable amount of play in there - so, i get to create an isolator bushing to prevent the rattle there - it is definitely a good part of my noise

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[flash]

ok - took it apart and refit the races - it seems they were allowed to separate - it was a 2 piece race - i pressed them back together and sort of "dutch pinned" the casing to hold the races in place - then i greased the whole thing - i'll add 2 weather seals of a sort to it tomorrow and refit - that should quiet it down for sure - not sure if that is all of it, but it is sure one of my noises - the added bonus is that it will also tighten up my shifting more - less slop now

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[Cloud9...68]

Bump.

Any update with all of this? Specifically:

1) Blue968 - Did the new shift linkage with the bushing included fix the buzz from the lighted knob?

2) Has anybody with a non-stock shift know tried the Stuttgart shift block/bushing? Did it make a difference?

3) Flash - I know you've been insanely busy with the supercharger and other projects, but do you know if your idea to add a weighted collar to the shift linkage helped?

4) Is the linkage accessible from beneath the car, or from above? I assume it's from below...

I will see if the putting back the stock knob cures my buzz, but just for grins, I think I'll try it with no knob at all. I know I promised this many moons ago, but I will definitely do it this week. Between all of us, there HAS to be a solution to this annoying problem, even if it's simply that an aftermarket knob can't be used on a 968 without creating a buzz. Thanks.

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[flash]

i never tried it - i have the short shifter i designed, and i actually prefer the OEM knob, as it is round and fits the cup of the palm where a shifter should reside - the other newer shifters are pistol grip, and while perhaps comfy for some people, they are not designed for proper racing shift technique - being an old fuddy duddy and stuck in my ways, i'm not inclined to change now

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