Driveline noise

Various, various and more various!
magnumpi
Posts: 1289
Joined: 05 Feb 2008 11:39 pm
Location: Surrey

Driveline noise

Post by magnumpi » 07 Sep 2010 07:42 pm

Evening gents.

Something has been noisy in my driveline since i bought my car and i guessed it was the diff, so i checked the oil and topped it up. As i'm tight/lazy i didn't bother changing the already leaking gasket at the same time.

That was probably over a year ago now, and what started as a slight wine has now developed into. . . well a noisier whine. It's not a constant whine, it's like when you spin something like a bucket and it makes a kind of va va va va noise, make any sense :lol: ? It's kind of like a reverberating noise which rattles and almost drowns out the stock speakers! It can make the dash pod rattle aswell.

You don't notice it at low speed but it's most predominant at 3500-4k in 5th. When you put your foot on the gas it is still there but the exhaust drowns it out, but put the clutch in and it's still there and a faster noise!

I know this will sound like giberish without you hearing it, but any ideas what would cause this kind of noise? I'm not even sure if it is the diff (non welded) now as i can't pin point wether it's coming from the front or back.

Any thoughts?
89 3dr 340DL in Battleship grey with Ultralights and Williams power
Whats the matter with the car i'm driving can't you tell that it's out of style?

User avatar
Speedy88
Posts: 4057
Joined: 04 May 2009 11:52 pm
Location: Bristol

Re: Driveline noise

Post by Speedy88 » 07 Sep 2010 11:04 pm

These are usually a pain in the arse but I often try and simulate them by putting the car on stands (very important to check the car is sturdy), start it up and bang it in 5th just ticking over. Climb under and find the source of the noise.
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

volvosneverdie
*** V3M DONOR ***
Posts: 9143
Joined: 11 Nov 2008 04:22 pm
Location: Newcastle Upon Toon

Re: Driveline noise

Post by volvosneverdie » 08 Sep 2010 12:54 pm

Speedy88 wrote:These are usually a pain in the arse but I often try and simulate them by putting the car on stands (very important to check the car is sturdy), start it up and bang it in 5th just ticking over. Climb under and find the source of the noise.
:shock:

Start a car on stands then clamber underneath it.
Start a car on stands then clamber underneath it.

I think this system could be improved slightly.

Start a car on stands then tell someone you dont like to clamber underneath it. :wink:
Image

User avatar
Speedy88
Posts: 4057
Joined: 04 May 2009 11:52 pm
Location: Bristol

Re: Driveline noise

Post by Speedy88 » 08 Sep 2010 01:26 pm

Hence the "very important to check the car is sturdy" :lol: Worst that'll happen is the car will fall off the stands, which it was going to do anyway because you didn't check it was sturdy enough. It's not a muscle car, it isn't going to drive away in 5th gear :wink:
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

volvosneverdie
*** V3M DONOR ***
Posts: 9143
Joined: 11 Nov 2008 04:22 pm
Location: Newcastle Upon Toon

Re: Driveline noise

Post by volvosneverdie » 08 Sep 2010 01:31 pm

Speedy88 wrote: It's not a muscle car, :wink:
You take that back!!!!!!
Image

Ride_on
Posts: 2262
Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: Driveline noise

Post by Ride_on » 08 Sep 2010 01:52 pm

It should be fine to put the car on stands and get underneath, that's what they are for. If the small vibration from running the car can make it fall it the axle stands are not secure enough to get under with the engine off anyway. Running the engine and drive is not significantly more dangerous other than the rotating parts and potentially hot exhaust, however the diff will transfer the power if you get you head stuck between a wheel and something solid, you can usually grab and hold a rotating wheel if both are off the ground. You'd still want to avoid that in an uncontrolled fashion though as there will be considerable momentum in the rotating parts.

Put the rear stands on the axle if the jacking points are suspect.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

User avatar
Chris_C
*** V3M DONOR ***
Posts: 9600
Joined: 18 Jun 2004 11:53 pm
Location: South Coast, UK

Re: Driveline noise

Post by Chris_C » 08 Sep 2010 03:22 pm

You lot have bigger balls than me.

Or maybe less torque.

Either way :shock:
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

volvosneverdie
*** V3M DONOR ***
Posts: 9143
Joined: 11 Nov 2008 04:22 pm
Location: Newcastle Upon Toon

Re: Driveline noise

Post by volvosneverdie » 08 Sep 2010 03:53 pm

Chris_C wrote:You lot have bigger balls than me.

Or maybe less torque.

Either way :shock:
Im with cowardy custard.
I THINK i could probaby bench press a 300.
But I dont want to try it. :lol:
Image

OppositeLock
Posts: 26
Joined: 19 Aug 2010 02:26 pm
Location: Melbourne, Australia

Re: Driveline noise

Post by OppositeLock » 08 Sep 2010 04:06 pm

Sounds like rear wheel barings to me, Im getting the same sounds. To my suprise the 2 previous owners have kept every single recept for the car. (The glove box was over flowing) I found that 10 years ago the RHS wheel baring was replaced but not the LHS. Its far more obvious if you kill the engine at 100 klicks.

Now to find a set that arnt a $100+ a pop. If anybody knows where I can find them cheap can you give us a heads up. I cant belive how much parts are for this thing in the land of oz.

volvosneverdie
*** V3M DONOR ***
Posts: 9143
Joined: 11 Nov 2008 04:22 pm
Location: Newcastle Upon Toon

Re: Driveline noise

Post by volvosneverdie » 08 Sep 2010 04:13 pm

OppositeLock wrote:Sounds like rear wheel barings to me, Im getting the same sounds. To my suprise the 2 previous owners have kept every single recept for the car. (The glove box was over flowing) I found that 10 years ago the RHS wheel baring was replaced but not the LHS. Its far more obvious if you kill the engine at 100 klicks.

Now to find a set that arnt a $100+ a pop. If anybody knows where I can find them cheap can you give us a heads up. I cant belive how much parts are for this thing in the land of oz.
I can ship you some over but the postage is akin to wallet rape.
Image

OppositeLock
Posts: 26
Joined: 19 Aug 2010 02:26 pm
Location: Melbourne, Australia

Re: Driveline noise

Post by OppositeLock » 08 Sep 2010 05:38 pm

volvosneverdie wrote:I can ship you some over but the postage is akin to wallet rape.
I just had some bits sent over from germany and it wasnt too bad. Price it up if you could, its gotta be cheaper than paying retail.

volvosneverdie
*** V3M DONOR ***
Posts: 9143
Joined: 11 Nov 2008 04:22 pm
Location: Newcastle Upon Toon

Re: Driveline noise

Post by volvosneverdie » 08 Sep 2010 05:47 pm

Threadjack ends............................ :lol:
Image

magnumpi
Posts: 1289
Joined: 05 Feb 2008 11:39 pm
Location: Surrey

Re: Driveline noise

Post by magnumpi » 08 Sep 2010 06:31 pm

Well as safe as it may or may not be i don't fancy being under it when running :?

I had considered it to be wheel bearings, but when they went on my Beetle they never made any noise, just moved back and forth a bit when i rocked the wheel in my hand.

Would i be able to feel it if the rear bearings have gone, i mean like above, not when driving it?
89 3dr 340DL in Battleship grey with Ultralights and Williams power
Whats the matter with the car i'm driving can't you tell that it's out of style?

User avatar
volvodspec
Posts: 1921
Joined: 06 Dec 2008 09:35 pm
Location: Netherlands.
Contact:

Re: Driveline noise

Post by volvodspec » 08 Sep 2010 06:34 pm

did you check the gearbox oil too?

espescially since it's noisyer at 3500/4000rpm in 5th, if it where the wheelbearings or differential it should whine constantly if you drive a bit faster

magnumpi
Posts: 1289
Joined: 05 Feb 2008 11:39 pm
Location: Surrey

Re: Driveline noise

Post by magnumpi » 08 Sep 2010 07:37 pm

volvodspec wrote:did you check the gearbox oil too?

espescially since it's noisyer at 3500/4000rpm in 5th, if it where the wheelbearings or differential it should whine constantly if you drive a bit faster

Yeah i toped that up at the same time.
89 3dr 340DL in Battleship grey with Ultralights and Williams power
Whats the matter with the car i'm driving can't you tell that it's out of style?

Post Reply