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 )

 
 Reply to this topicStart new topic
> Strange Noise
mrholland2
post Dec 10 2011, 01:23 AM
Post #1


Senior Member
***

Group: Members
Posts: 761
Joined: 7-September 11
From: Santa Maria,CA
Member No.: 13,531
Region Association: Central California
Okay, a newish noise has begun. It actually started a while back but only when making pretty aggressive turns. Tonight, very cold, the noise happened just driving straight.

It is coming from behind me and low, a bit left. It is a light thunk thunk thunk and is the same speed as the yet to be fixed pulsing front brakes. .but is unrelated because it is from behind me. It slows down and speeds up with the speed of the car, unrelated to engine speed. CV joint? Something loose where the axle half connects to the transmission? Maybe? (IMG:style_emoticons/default/headbang.gif)

Thanks

Sean
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
EdwardBlume
post Dec 10 2011, 06:27 AM
Post #2


914 Wizard
**********

Group: Members
Posts: 12,338
Joined: 2-January 03
From: SLO
Member No.: 81
Region Association: Central California
The rear main drive shaft may be detaching. Your car becomes a push sled at that point.

Mine came off at 70+ and sounded like I threw a rod. Big clunk when they shift. Pull off the rear wheels and look at your hub. Is the cotter pin still in(tact)?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pcar916
post Dec 10 2011, 09:11 AM
Post #3


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None
100% inspection under the car of every nut and bolt in your drivetrain starting with the cv bolts. Settle in on a creeper and look at, push, pull and shake everything you can get your hands on.

Then go to the front of the car and do the same... it's up in the air after all!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mrholland2
post Dec 10 2011, 10:26 AM
Post #4


Senior Member
***

Group: Members
Posts: 761
Joined: 7-September 11
From: Santa Maria,CA
Member No.: 13,531
Region Association: Central California
It is against the rules of my HOA (I'm on the board) to work on vehicles on the property. Would you risk a 25 mile highway drive to a friends where we can work on it? I think he and I have time next saturday to be all clever and work on whatever needs to be done (checking this noise out and replacing the warped and one hole stripped out rotors and brake pads on the front)

I'm not going to consider your answer a guarantee, I just don't want the rear axle to fly out of the car or something and drag the back on the ground, ruining the engine and body (can that happen??)



QUOTE(RobW @ Dec 10 2011, 04:27 AM) *

The rear main drive shaft may be detaching. Your car becomes a push sled at that point.

Mine came off at 70+ and sounded like I threw a rod. Big clunk when they shift. Pull off the rear wheels and look at your hub. Is the cotter pin still in(tact)?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
underthetire
post Dec 10 2011, 11:55 AM
Post #5


914 Guru
*****

Group: Members
Posts: 5,062
Joined: 7-October 08
From: Brentwood
Member No.: 9,623
Region Association: Northern California
A hoa (IMG:style_emoticons/default/ar15.gif) and your on the board with a 914 (IMG:style_emoticons/default/av-943.gif)

I had a loose axle as well, could also be a rear bearing. Loose axle at speed coming out = scary and usually more money.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stugray
post Dec 10 2011, 12:03 PM
Post #6


Advanced Member
****

Group: Members
Posts: 3,825
Joined: 17-September 09
From: Longmont, CO
Member No.: 10,819
Region Association: None
sounds like a CV joint.
And my attitude towards the HOA is to just do the work anyway.
you dont have a garage or carport?

If you knew which CV, it can be replaced in about 30 minutes.

Stu
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mrholland2
post Dec 10 2011, 12:21 PM
Post #7


Senior Member
***

Group: Members
Posts: 761
Joined: 7-September 11
From: Santa Maria,CA
Member No.: 13,531
Region Association: Central California
No garage or carport. . townhouses circa 1980. . lakefront, and remember, I'm on the board. . I would have to issue a 100 buck fine to myself. Without this rule, we'd have cars on blocks. . engines in parking spaces etc. .

It seems like a GENTLE drive to my friends would be okay??????

QUOTE(stugray @ Dec 10 2011, 10:03 AM) *

sounds like a CV joint.
And my attitude towards the HOA is to just do the work anyway.
you dont have a garage or carport?

If you knew which CV, it can be replaced in about 30 minutes.

Stu
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
somd914
post Dec 10 2011, 01:07 PM
Post #8


Member
***

Group: Members
Posts: 1,171
Joined: 21-February 11
From: Southern Maryland
Member No.: 12,741
Region Association: MidAtlantic Region
QUOTE(mrholland2 @ Dec 10 2011, 01:21 PM) *

No garage or carport. . townhouses circa 1980. . lakefront, and remember, I'm on the board. . I would have to issue a 100 buck fine to myself. Without this rule, we'd have cars on blocks. . engines in parking spaces etc. .

It seems like a GENTLE drive to my friends would be okay??????



So, you would write the check to yourself to pay the fine.. (IMG:style_emoticons/default/smile.gif)

Hmmm, you need our HOA - cars on blocks, sanding body work on driveways, assorted parts hanging from tree branches while they're being painted, compressor and air tools running late into the nights, etc., and that's just our house. But if I try to paint my shutters a different color w/o approval, watch out!

Seriously, can't you at least put each wheel up and do a simple inspection - not much different from changing a flat, or is that against the rules?

Concur that I would suspect a CV. My experiences with bad/loose bearings has been growling/rubbing sounds.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Spoke
post Dec 10 2011, 01:11 PM
Post #9


Jerry
*****

Group: Members
Posts: 7,156
Joined: 29-October 04
From: Allentown, PA
Member No.: 3,031
Region Association: None
QUOTE(mrholland2 @ Dec 10 2011, 01:21 PM) *

It seems like a GENTLE drive to my friends would be okay??????



Only you can answer that question. How bad it is. How long until it explodes or comes apart.

You could always do the ghetto thing and take it to a nearby strip mall, go behind the mall and out of the way and jack it up there. If someone (police) questions you just explain you may have a major issue and the car may need towed. You are just inspecting for trouble.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Als914
post Dec 10 2011, 01:37 PM
Post #10


Lighting my way
**

Group: Members
Posts: 330
Joined: 1-January 06
From: Hemet,Ca.
Member No.: 5,346
Region Association: Southern California
QUOTE(mrholland2 @ Dec 10 2011, 08:26 AM) *

It is against the rules of my HOA (I'm on the board) to work on vehicles on the property. Would you risk a 25 mile highway drive to a friends where we can work on it? I think he and I have time next saturday to be all clever and work on whatever needs to be done (checking this noise out and replacing the warped and one hole stripped out rotors and brake pads on the front)

I'm not going to consider your answer a guarantee, I just don't want the rear axle to fly out of the car or something and drag the back on the ground, ruining the engine and body (can that happen??)



QUOTE(RobW @ Dec 10 2011, 04:27 AM) *

The rear main drive shaft may be detaching. Your car becomes a push sled at that point.

Mine came off at 70+ and sounded like I threw a rod. Big clunk when they shift. Pull off the rear wheels and look at your hub. Is the cotter pin still in(tact)?



If you have AAA have them pick it up and ship it over to you friend's place.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Ductech
post Dec 10 2011, 02:01 PM
Post #11


Member
**

Group: Members
Posts: 356
Joined: 16-July 10
From: AridZona
Member No.: 11,949
Region Association: Southwest Region
I love the bull shit involved with HOA and trying to survive as someone who doesn't drive a new benz everywhere... and you don't have a garage to go with your teener? I guess you didn't get the check list of whats required when owning an older car.

ahh Home Owners Associations,, destroying the ingenuity that we americans were known for.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Dec 10 2011, 02:28 PM
Post #12


I drive my car everyday
*****

Group: Members
Posts: 8,335
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666
Unless your very large chested, you should be able to get far enough under the rear to grab, shake, and inspect cv's and axles.

BTW, I've heard wheel bearings make the exact noise you describe. At least jack up each rear wheel and check them (grab tire a 12 and 6 oclock and try to move it up and down). You could be done before anyone can get the camera turned on. Actually, you wouldn't even be working on the car, just testing the jack. Twice.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mrholland2
post Dec 10 2011, 04:07 PM
Post #13


Senior Member
***

Group: Members
Posts: 761
Joined: 7-September 11
From: Santa Maria,CA
Member No.: 13,531
Region Association: Central California
QUOTE(Spoke @ Dec 10 2011, 11:11 AM) *

QUOTE(mrholland2 @ Dec 10 2011, 01:21 PM) *

It seems like a GENTLE drive to my friends would be okay??????



Only you can answer that question. How bad it is. How long until it explodes or comes apart.

You could always do the ghetto thing and take it to a nearby strip mall, go behind the mall and out of the way and jack it up there. If someone (police) questions you just explain you may have a major issue and the car may need towed. You are just inspecting for trouble.


The nearest strip mall is 25 miles away as well. (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mrholland2
post Dec 10 2011, 04:12 PM
Post #14


Senior Member
***

Group: Members
Posts: 761
Joined: 7-September 11
From: Santa Maria,CA
Member No.: 13,531
Region Association: Central California
I imagine I can get away with some checking. Honestly, I like the HOA rules, they have worked to help improve the place alot. You can't imagine what was going on before, people owning a place with no front door and animals moving in etc. But that isn't the point of this topic.

As long as I don't report myself, I can probably do the "Jack test" yank on the tire thing. I'll do that and decide from there.

If I can get it to my friends place, I'll do a more thorough inspection.

Thanks guys/gals.

Sean

(if you ever have questions about what band instruments to buy for your kids or whatever, I"m the go to guy to pay ya back for your 914 advice)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

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

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 29th April 2025 - 10:41 PM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...