|
|
|
|
| Author |
|
|
Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
|
Drive train noise when in first.
Occasionally I get a noise when pulling starting out slowly from a stop. I can't hear it once i get going, but don't know if it's drowned out or simply stops being made.
I've heard it for the past few years I have owned the car, but am only now more getting curious about it. This might be because of the trans mounts I installed months ago are transmitting the sound better. The best I can do is to say it sounds like a low whirring or 'errrr'. It actually sort of reminds me of the sound some old milk delivery trucks used to make a real long time ago. (!) I cannot tell if it is a CV or diff/tranny noise. The PO notes that the CVs were rebuilt around 2007. I can tell it is different from the G50 rattle. There is no vibe or judder. Can anyone offer me any clues? Thanks(, and please excuse any late reply by me.)
__________________
Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue Last edited by steely; 09-19-2011 at 10:06 PM.. |
||
09-19-2011, 10:02 PM
|
|
|
Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
|
anyone?
__________________
Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
||
|
09-20-2011, 05:46 PM
|
|
|
Registered User
|
OK - very curious if anyone can help. I have an 88 140,000 miles - same noise........I was wondering if it could be rear wheel bearings?
|
||
|
09-20-2011, 06:00 PM
|
|
|
Member 911 Anonymous
|
Hey Dan!
OK, Trans Mounts OEM or Cabroilet aka Sport Mounts? I changed both trans and motor mounts to the harder cab mounts and I hear drive train noise, it is slight but there. Prior to the change no noise, I consider it a side effect for better/precise shifting. Whnen the noise occurs, grab the stick and move it to the left or back just so slightly, see if it will stop the noise. Jim
__________________
'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
||
|
09-20-2011, 06:14 PM
|
|
|
Registered
Join Date: Dec 2010
Location: Auburn, WA
Posts: 54
|
I have an '87 Cab, 74,000mi, it makes the same noise.
|
||
|
09-20-2011, 07:34 PM
|
|
|
Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
|
I don't think it's the bearings, I thought they'd sound off more in a turn and when coasting. This is more when under power.
Hi Jim - I installed the poly-graphite (hard) two part kit for the g50 mount - not OEM, and I don't think they're cab or sport (I should know) Part is PEL-RSRMTM. I was aware that there'd be more noise but I thought I'd give'em a shot. I also noticed definite shifting improvements (ease), and new sounds that I can tune in /out / appreciate. I can hear the gentle drive train whine as I pick up RPM - this is different, louder, and just from a stand-still to half-way before I go into 2nd. If I get on it, I don't notice it. I f I go slow, it is noticeable, almost like I was lugging the train, but not the engine (I am not below 1K rpm). Let's just say my wife asked me "what is that?" when we got a rare drive in this past Sunday. I will definitely try what you said (if I can get some nice weather). Work and other things are kickin my butt, otherwise I'd try and record it. Thanks guys
__________________
Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
||
|
09-20-2011, 07:42 PM
|
|
|
|
Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
|
MSB / haggis - maybe it's a feature :-)
this has 103,000 miles. I am due for a PA inspection soon, I will ask them too (mid Oct at a Porsche indy)
__________________
Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
||
|
09-20-2011, 07:45 PM
|
|
|
Registered
|
When was the last time you changed/checked your transmission oil?
__________________
'88 Carrera Cab 3.2 Diamond Blue Metallic - ERP Polybronze Bushings, ERP Monoballs, SW Chip, Bilstein Sports, 930S Steering Wheel, DAS Rollbar, Sparco 5pt Harness, Hunsaker Sport Seats, Dansk Pre-Muffler, MK 1in-1out Exhaust, Magnecor KV8.5 Wires '86 944NA, Sunroof Delete, Track Rat, Full Cage '72 914 1.7 Guards Red / '02 Audi S4 Light Silver Metallic |
||
|
09-21-2011, 05:06 AM
|
|
|
Member 911 Anonymous
|
Not sure if this will apply to the G50, but I recently placed Ed's Derlin coupler and reset the coupler and my slight rattle noise from the shifter went away.
Like a very light tic tic tic. Like the gears are ever so slightly tapping the walls of my tranny. Well, I was going to adjust my gate shift kit but as soon as I replaced the coupler and reset the neutral. the noise went away immediately to my surprise and joy.
__________________
'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
||
|
09-21-2011, 07:46 AM
|
|
|
Registered
Join Date: Aug 2008
Location: sectors R&N, SE Pa
Posts: 3,117
|
Quote:
Jim - no shifter rattle here, coupler reset when I replaced the trans mounts and shifter coupler (rear) boot this past winter. Don't know that I will be able to do much with her before we split for a getaway. I will report back. Thanks guys.
__________________
Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
||
|
09-21-2011, 06:05 PM
|
|
|
Member 911 Anonymous
|
are able to post a sound clip?
__________________
'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
||
|
09-21-2011, 08:55 PM
|
|
Marble Grey
1988 Porsche Carrera Cabriolet 3.2
