Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> p/s/r drive train clunk,OR RUST, has a way of making things lighter
phoenixred
post Jan 10 2010, 02:43 PM
Post #1


Newbie
*

Group: Members
Posts: 5
Joined: 21-May 09
From: North NJ
Member No.: 10,387
Region Association: None



IS this how one gets the idea to replace all the c/v joints?

I have been driving the wheels off the car this past year after getting things sorted.
Way back when I cleaned and repacked/rebooted the c/vs and then went on to sort out other areas of car and not drive so much.

This is different now. While today is very cold, this low frequency clunk when rolling off seems to be a harbinger of new parts to come.

any thoughts?
thanks
Eric

IT seems cv'sclunking and longs crunching have some sonic similarities.
anyway I've confused the two here!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
r_towle
post Jan 17 2010, 02:14 PM
Post #2


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States



Clunk when rolling? or a hum or whine when rolling?
Whine or clunk in reverse?
Whine or clunk when turning one way or the other at speed?
A clackity clack sound when turning tight at slow speed?

All are CV joints.

Clunk when starting off from a stand still
First thing I check is all motor mounts, front a rear.
The inner rubbers tends to break over time...those allow the engine to rise up and it clunks.
Rear motor/trans mounts clunk and its hard to see them as bad...you need to pull them out to see a crack...

If no motor mounting issues, its a CV joint.

Also, make sure there is not some thing rolling around in the trunks...BTDT

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
phoenixred
post Jan 18 2010, 07:02 AM
Post #3


Newbie
*

Group: Members
Posts: 5
Joined: 21-May 09
From: North NJ
Member No.: 10,387
Region Association: None



QUOTE(r_towle @ Jan 17 2010, 12:14 PM) *

Clunk when rolling? or a hum or whine when rolling?
Whine or clunk in reverse?
Whine or clunk when turning one way or the other at speed?
A clackity clack sound when turning tight at slow speed?

All are CV joints.

Clunk when starting off from a stand still
First thing I check is all motor mounts, front a rear.
The inner rubbers tends to break over time...those allow the engine to rise up and it clunks.
Rear motor/trans mounts clunk and its hard to see them as bad...you need to pull them out to see a crack...

If no motor mounting issues, its a CV joint.

Also, make sure there is not some thing rolling around in the trunks...BTDT

Rich

Thanks Rich,

I remember seeing your quote about "usenet" before.

Somehow my clunk was caused by Corrosion Cavern decay.

Motor mount was input point for clunk sound -dunno where it was clunking from.

Long inside & out up to suspension console have big decay. I knew this but forgot I was supposed to take a look here in the fall. Meanwhile the previous owners patches disguised and held moisture. Giving rust a big head start!

T air chiseled obvious rot out. I put a patch on it. It clunks no more-for the moment. Now I think to do the proper repair of this area when it gets warmer.
Parts are probably 750, plus paint/materials.

I probably have only 1500 in this particular car, excepting perishables-tires fuel lines,pads,filters. Its a 75 with a very stock rebearinged-not a word apparently-1.8.-23/29 mpg Daily driver.
So maybe a 1000$ in job cost, will still put car at relative tipping point .
thanks
Eric
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 15th July 2025 - 02:52 AM