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 )

> Driveline Slop?
andrewvolsen
post Apr 10 2012, 11:33 PM
Post #1


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California



I have a '75 1.8 and lately it has felt like there is more slop in the driveline than there used to be. If I let off the gas in 1st or 2nd I can feel the whole car sort of lunge/jerk, same thing happens if I get on the gas. It gets much less noticeable in higher gears. Is this a common issue? What should I check first?

My first suspicion was failing cv joints. I reached under the car earlier and tried rocking the passenger side axle back and forth, but I didn't feel any play.

Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies(1 - 8)
euro911
post Apr 10 2012, 11:42 PM
Post #2


Retired & living the dream. God help me if I wake up!
*****

Group: Members
Posts: 8,851
Joined: 2-December 06
From: So.Cal. & No.AZ (USA)
Member No.: 7,300
Region Association: Southern California



I'd check your engine and transaxle mounts first.

Check your trailing arm bushings too.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
andrewvolsen
post Apr 10 2012, 11:46 PM
Post #3


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California



Mark, are there any tricks to checking those parts or is it just a basic inspection? Try rocking the parts with a pry bar and check mounts/bushings for play?

Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Apr 11 2012, 12:41 AM
Post #4


Resident German
*************************

Group: Admin
Posts: 41,681
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California



QUOTE(euro911 @ Apr 10 2012, 10:42 PM) *
I'd check your engine and transaxle mounts first.


(IMG:style_emoticons/default/agree.gif)

Sounds like either the motor mounts or tranny mounts ...
(IMG:style_emoticons/default/idea.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Apr 11 2012, 09:00 AM
Post #5


I drive my car everyday
*****

Group: Members
Posts: 8,304
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666



I chased a similar thunk on a car for a few weeks. Turned out to be a wheel bearing.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Apr 11 2012, 09:04 AM
Post #6


914 Idiot
**********

Group: Members
Posts: 14,991
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California



Jack up on the bottom of the engine. If the engine lifts up without taking the weight off the wheels, the motor mounts have separated.

In my car, very heavy 1st and some 2nd gear acceleration would produce a repeated thump through the car--"WHUMP WHUMP WHUMP WHUMP"--and the gear shift lever would move around quite a bit under heavy braking.

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Apr 11 2012, 09:05 AM
Post #7


I drive my car everyday
*****

Group: Members
Posts: 8,304
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666



An engine mount will usually transmit movement to the shifter. Use a pry bar between the case and mount bar and try to lift the engine off the bar.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
andrewvolsen
post Apr 11 2012, 09:21 AM
Post #8


Newbie
*

Group: Members
Posts: 44
Joined: 6-December 09
From: Santa Barbara
Member No.: 11,099
Region Association: Central California



Thanks guys. I'll check this stuff out on Friday.

Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 11 2012, 01:18 PM
Post #9


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None



Also could be an oil contaminated clutch.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

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: 10th June 2024 - 11:13 PM