Drive train noise when in first.

[steely]

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.)

[steely]

anyone?

[haggis780]

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?

[DRACO A5OG]

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

[MSB911]

I have an '87 Cab, 74,000mi, it makes the same noise.

[steely]

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

[steely]

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)

[aj88cab]

When was the last time you changed/checked your transmission oil?

[DRACO A5OG]

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.

[steely]

Originally Posted by aj88cab

When was the last time you changed/checked your transmission oil?

Changed 2 years ago this month - haven't checked since though. Will pursue before I drive or at upcoming car inspection.

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.

[DRACO A5OG]

are able to post a sound clip?