Spoon Clutch Kit, and now vibrations...

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Apr 18, 2024 | 09:49 AM

#21

Say Chi Sin Lo

Thread Starter

Joined: Jun 2013

Posts: 1,176

Likes: 100

From: San Francisco

Quote:

Originally Posted by Slowcrash_101

How often do you drive your car? If you let it sit for weeks at a time, you can square off your tires, this can throw the balance off. There's static balance and road force balance, you can have perfect static balance and bad road force balance.

I drive it likely once a week.

Apr 18, 2024 | 09:51 AM

#22

Say Chi Sin Lo

Thread Starter

Joined: Jun 2013

Posts: 1,176

Likes: 100

From: San Francisco

Quote:

Originally Posted by Car Analogy

Tire flatspots typically work themselves out after tires fully warm themselves up, then have enough rotations to work the rubber back to round.

But this could explain things. If the car sat for a while between before the clutch job and now, and it was coldish during any of that time, and especially if car has summer tires.

And also if since clutch, car hasn't been driven for a long enough distance in warm enough weather.

Pre and Post clutch job - the car been through a tank of gas on the highway already. I live in San Francisco so we aren't super super cold.

Apr 18, 2024 | 12:16 PM

#23

Car Analogy

Joined: Aug 2012

Posts: 8,773

Likes: 1,877

Quote:

Originally Posted by Say Chi Sin Lo

I live in San Francisco so we aren't super super cold.

Mark Twain disagrees

Apr 22, 2024 | 09:08 PM

#24

Say Chi Sin Lo

Thread Starter

Joined: Jun 2013

Posts: 1,176

Likes: 100

From: San Francisco

Quote:

Originally Posted by Scigheras

Maybe the propshaft was put back in backwards

You called it. My friend discovered the driveshaft was put back on backwards. Flipped it back and the car is flawless again.

Thanks everyone for you input!

Apr 23, 2024 | 02:23 AM

#25

starchland

Joined: Sep 2007

Posts: 7,346

Likes: 112

Quote:

Originally Posted by Say Chi Sin Lo

You called it. My friend discovered the driveshaft was put back on backwards. Flipped it back and the car is flawless again.

Thanks everyone for you input!

for future use, how can one identify correct orientation?

Apr 23, 2024 | 04:22 AM

#26

RolanTHUNDER

Joined: Aug 2016

Posts: 2,767

Likes: 234

From: In BOOST

Quote:

Originally Posted by Say Chi Sin Lo

You called it. My friend discovered the driveshaft was put back on backwards. Flipped it back and the car is flawless again.

Thanks everyone for you input!

Who would have thought?! Glad it's sorted now

Apr 23, 2024 | 04:23 AM

#27

Car Analogy

Joined: Aug 2012

Posts: 8,773

Likes: 1,877

Draw directional arrow before removal.

Also draw alignment marks on each end. A line that spans propshaft to mating flange. So it can be put back exactly how it was.

If you suspect yours is already backwards, swap it around, see if things get better.

Apr 23, 2024 | 04:26 AM

#28

RolanTHUNDER

Joined: Aug 2016

Posts: 2,767

Likes: 234

From: In BOOST

Quote:

Originally Posted by starchland

for future use, how can one identify correct orientation?

I might be wrong since I've never fully removed my or any other S2K driveshaft when doing clutch changes but the tail shaft of the gearbox and that end of the driveshaft have indents that mate perfectly when aligned. Almost like a magnet. Someone else can chime in to confirm if there are markings on the shaft itself to show which side goes where.