Okay Experts: Identify this sound... SOLVED..., 914 traveling at 40 MPH squeals then stops and starts... |
|
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. |
|
Okay Experts: Identify this sound... SOLVED..., 914 traveling at 40 MPH squeals then stops and starts... |
Rockaria |
Apr 8 2013, 08:04 PM
Post
#1
|
ZippidyDoDah... Group: Members Posts: 817 Joined: 2-May 03 From: Southwest, USA Member No.: 645 Region Association: None |
Okay I have a funny sound coming from the drivers side rear. It only happens when it is over 80 Degrees ambiant outside. Never when cold. It usually comes on after about 30 MPH and goes away suddenly. Sometimes its really loud sometimes quiet.
I made a recording today and though someone might know if I have a problem or just something simple. 1973 914 2.0 D-Jet - Stock as she came from the factory. Crazy 914 sound MP3 - 4MB In the audio I start recording when I am doing 40MPH. I do that a while, get to red light. It goes away then I go back to 40MPH and it does not come back, then it just comes back when I am doing about 25. (IMG:style_emoticons/default/blink.gif) Thanks in advance, |
McMark |
Apr 8 2013, 08:06 PM
Post
#2
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Rear wheel bearing?
|
ThePaintedMan |
Apr 8 2013, 08:07 PM
Post
#3
|
Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
Okay I have a funny sound coming from the drivers side rear. It only happens when it is over 80 Degrees ambiant outside. Never when cold. It usually comes on after about 30 MPH and goes away suddenly. Sometimes its really loud sometimes quiet. I made a recording today and though someone might know if I have a problem or just something simple. 1973 914 2.0 D-Jet - Stock as she came from the factory. Crazy 914 sound MP3 - 4MB In the audio I start recording when I am doing 40MPH. I do that a while, get to red light. It goes away then I go back to 40MPH and it does not come back, then it just comes back when I am doing about 25. (IMG:style_emoticons/default/blink.gif) Thanks in advance, Mine was doing that as well for awhile, very similar symptoms, except I only heard it when it was cold out. I cleaned and regreased my CVs and it seemed to go away, but then again, it got warm right after I did that. Either CVs or wheel bearings. Either way, a PITA. |
r_towle |
Apr 8 2013, 08:15 PM
Post
#4
|
Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
rock in the brake disk?
|
914itis |
Apr 8 2013, 08:16 PM
Post
#5
|
Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Brake dust shield ?
|
Rockaria |
Apr 8 2013, 08:22 PM
Post
#6
|
ZippidyDoDah... Group: Members Posts: 817 Joined: 2-May 03 From: Southwest, USA Member No.: 645 Region Association: None |
Pressing on the brakes has no effect. My thought possible stuck caliper. Sharp turning left or right has no effect. I am leaning towards bearings or CVs. I just want a second opinion from the experts before I start throwing money at it.
|
r_towle |
Apr 8 2013, 08:26 PM
Post
#7
|
Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
go pull the caliper off and see if the bearing is funky...or if something falls out when you remove the caliper.
with race tires I got rocks all over the place, including in the calipers. If nothing else, you can then test the bearing with no resistance. rich |
tomeric914 |
Apr 8 2013, 08:28 PM
Post
#8
|
One Lap of America in a 914! Group: Members Posts: 1,263 Joined: 25-May 08 From: Syracuse, NY Member No.: 9,101 Region Association: North East States |
Speedometer cable
|
URY914 |
Apr 8 2013, 08:33 PM
Post
#9
|
I built the lightest 914 in the history of mankind. Group: Members Posts: 123,026 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Rust
|
skeates |
Apr 8 2013, 08:42 PM
Post
#10
|
Member Group: Members Posts: 218 Joined: 28-February 05 From: Sacramento, ca Member No.: 3,684 Region Association: Northern California |
I'm by no means an expert, but my immediate thought was the rear wheel bearing. The more I listened to it though I leaned towards a CV joint because of the rhythmic nature of the sound. Hopefully its something simple like the speedo cable.
|
Bob L. |
Apr 8 2013, 08:50 PM
Post
#11
|
Senior Member Group: Members Posts: 848 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
Alternator pulley/belt? (IMG:style_emoticons/default/confused24.gif)
|
tadink |
Apr 8 2013, 09:27 PM
Post
#12
|
Member Group: Members Posts: 379 Joined: 28-December 09 From: Napa Member No.: 11,181 Region Association: Northern California |
Turbo-whine? BUT don't you know:
You Can't Turbo a 914! {I just wanted to be the first to say it one time - I'm so happy now!} carry on. td |
Rockaria |
Apr 8 2013, 09:38 PM
Post
#13
|
ZippidyDoDah... Group: Members Posts: 817 Joined: 2-May 03 From: Southwest, USA Member No.: 645 Region Association: None |
Speedometer would have more noise on the passanger side I think. I had the noise before I rebuilt the engine, but not as bad. So its not the pully and belt. This sounds like the wheel, brake, CV. I guess it goes on the jack stands and comes apart. I hope its the CVs, that should be easy to deal with. I guess berrings and brakes would be something that should be done anyways. At least the driving season is coming to an end. Southwest Driving season = September through May. Just too dang hot outside to drive in the 110+ degree heat.
(IMG:style_emoticons/default/beer.gif) Thanks all, |
Rockaria |
Apr 29 2014, 12:01 PM
Post
#14
|
ZippidyDoDah... Group: Members Posts: 817 Joined: 2-May 03 From: Southwest, USA Member No.: 645 Region Association: None |
I have solved the mystery noise. Well I solved it months ago, but full testing is now complete...
Last Spring I repacked my CV joints with new grease and the sound has not returned. I did not take anything apart, I got a grease gun with an injection needle and put grease in from the rear of the CVs between the rubber boot and the drive shaft. I then massaged the boot to get the grease in all places. All fixed and has worked great since. Just an FYI to anyone who has this noise. I waited almost a year to make sure the noise did not return before posting this was solved. |
Lo-Fi Version | Time is now: 26th September 2024 - 09:56 PM |
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 ... |