Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

LinkBack Thread Tools Display Modes
Old 01-04-2015, 06:47 PM   #1
Registered User
grimesb's Avatar
Join Date: Apr 2014
Posts: 13
Technical Difficulties after clutch job

Hello Everyone,

I just put together my car after a clutch job and unfortunately have fouled something up with the job. I'd greatly appreciate any pointers on what to look into before paying a professional. I'd like to try and finish what I started!

Here are the main components I purchased:

1. LUK Part # DMF025 Flywheel
2. SACHS Part # K7019301 clutch and pressure plate
3. Pelican Parts IMS
4. Cat Bypass Pipes
5. New Transmission with less miles was installed ( had it available so figured why not...could one 2.7L tranny be that significantly different than the other? I was told when purchased it was from a 2001-2003 2.7)

Here's what happens when I start the car while on jack stands:
1. Car idles at about 900rpm

2. Can apply gas with no issues when not in gear

3. Once I try to place car in first gear and maintain about 1.2k rpm it sounds normal for about 4 seconds and afterward I hear a big bang that feels like something is off-balance / and or like two metal items colliding. I can feel it from the drivers seat rather well..it's bad.

3.5 When I disengage the clutch after the noise occurs you can abnormally hear the disengagement. I never heard it previously.

4. Clutch hydraulics are different..the pedal allows me to switch gears but it sits much lower than it previously did.

I made a sound clip but it wasn't an allowed format. Will make a video tomorrow.

Question: Could this be due to not mating the clutch and flywheel?

Question: The axle shafts are about 50% torqued..could that cause this noise when I put it into gear?

Thank you for your time!


2001 Porsche Boxster Base in all Black at 102k

DIY work so far:
- Row Kit, Tie Rods, Drop Links, Elephant Racing Control Arm Bushings, Water Pump replacement, IMS guardian, 968 Sport Seats, and Axle Shaft rebuilds.

Last edited by grimesb; 01-04-2015 at 06:51 PM. Reason: spelling
grimesb is offline   Reply With Quote
Old 01-05-2015, 02:07 PM   #2
Registered User
woodsman's Avatar
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
Can you get someone else to operate the clutch while you get your ear under the car?

Death is certain, life is not.
woodsman is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 03:45 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page