Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

80 series driveline whine

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

Posts: 552
Joined: Mon May 26, 2003 2:47 pm
Location: across the pond

Post by beanz2 »

Brian, I'm not an 80 series driver, but I am betting it is in the lift and resulting uni joint angles, like Andrew said. It sounds like when you remove the rear driveshaft out of the drivetrain the noise disappeared.

I'd take an angle finder and measure the transfer output flange and compare it with the pinion flange. They have to be parallel or within 2 degrees of each other.

Can you correct the pinion angle after the lift in the 80? Using something like caster bushes? Another thing you may try is to drop the transfer case lower by changing the mount.

Dave
Posts: 1508
Joined: Thu Jun 26, 2003 9:48 am

Post by MQ080 »

Simo63 wrote:Hi Dumbdunce... I believe from your previous posts that you are quite mechanically capable
This I would agree with, however I can’t look past the thought that you may need your hearing checked or a cheaper option would be getting another person in there with you and see if they can notice it (someone who hasn’t read this thread). Are you the only person who hears this sound?
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

beanz2 wrote:Brian, I'm not an 80 series driver, but I am betting it is in the lift and resulting uni joint angles, like Andrew said. It sounds like when you remove the rear driveshaft out of the drivetrain the noise disappeared.

I'd take an angle finder and measure the transfer output flange and compare it with the pinion flange. They have to be parallel or within 2 degrees of each other.

Can you correct the pinion angle after the lift in the 80? Using something like caster bushes? Another thing you may try is to drop the transfer case lower by changing the mount.

Dave
pinion angles aren't spectacular but aren't too bad either. I have driven plenty of lifted 80's with standard trailing arms, without this noise. I have been through the exercise of dropping the vehicle back to standard height to test this theory. the noise was still there when driving on the rear, and gone when driving on the front.

Last night I swapped tailshafts with DX80 for a test drive but it has made no difference.

therefore, in summary:

it is not the diff - diff has been rebuilt three times using different sets of gears and new bearings, with perfect backlash and a perfect tooth contact pattern,

it is not the gearbox - when driven on front axle, the noise goes away.

it is not the transfer - transfer has been swapped out with a known good unit

it is not the tailshaft uni joints - tailshaft uni joints were replaced with new

it is not driveline angle related - vehicle has been returned to standard height and the noise does not change.

it is not the tailshaft slip spline - tailshaft has been swapped with a known good unit.

it is not tyre noise, it is only there with power applied, it is not there on coast.

rear wheel bearings are near new.

I am out of ideas and if not resloved soon, will sell the vehicle, it makes me cranky every time I drive it. I would like to get a double cardan front shaft fitted so I can do a more extensive front wheel drive test, anyone got one handy?
Free air locker to the first 20 callers!
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

MQ080 wrote:
Simo63 wrote:Hi Dumbdunce... I believe from your previous posts that you are quite mechanically capable
This I would agree with, however I can’t look past the thought that you may need your hearing checked or a cheaper option would be getting another person in there with you and see if they can notice it (someone who hasn’t read this thread). Are you the only person who hears this sound?
yes other people can hear it :roll: at some speeds it's difficult to have a conversation in the car because of the noise.

I had my hearing checked about 6 months ago and it is well above average for my age, perhaps that is the problem - if I went to a some more loud concerts perhaps I wouldn't hear the noise any more?

PS get your bike out of my garage!
Free air locker to the first 20 callers!
Posts: 780
Joined: Wed Apr 26, 2006 7:11 pm
Location: darwin again

Post by simkell »

do you have a locker in the rear? I have just installed an air locker in the front ant now have the same noise, (diff whine). I have pulled it down twice and alos had two other mechanics check the back lash incase i set it up wrong. all three of us agreed that the backlash was perfect. one thing i didn't check was crwon wheel run out that is my next step. everything else has been rebuilt in the front and no noise was present until i fitted the locker. I'm starting to think that the locker is the problem. I'm 100% certain the noise is in the diff, on mine.

also have you checked for bent axles? sometimes these will cause a diff to whine. do you know someone with another diff, not center? swap it and see for certain if it is the diff or not?

hope this helps you i know your frustration, it shits me to tears to drive my 80.
Posts: 541
Joined: Sun Sep 28, 2003 5:04 pm
Location: in the shower..

Post by carts »

hmmmmm......what oil are you running in the rear diff?

As already suggested, it may be the wrong type, perhaps a little thin.
If you want a spare 60 for bits-
http://carl.outerlimits4x4.com/viewtopic.php?p=1109227#1109227
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

can't remember which oil I put in but it is a quality 80W90 EP/Hypoid GL4 or 5 so should be all right.


could be the locker. next test will be with an open 60 series diff in there. shrug. over it.
Free air locker to the first 20 callers!
Posts: 541
Joined: Sun Sep 28, 2003 5:04 pm
Location: in the shower..

Post by carts »

I have spare bits if you need some....
If you want a spare 60 for bits-
http://carl.outerlimits4x4.com/viewtopic.php?p=1109227#1109227
Posts: 2097
Joined: Tue Aug 12, 2003 6:50 pm
Location: wollongong

Post by dow50r »

Is the locker a 4 unbrako type, or the later 8?? Its not unheard of to get runout with the earlier type...or even a little bit of something under the ring....a bind in the centre flange that supports the ring....
Andrew
Posts: 541
Joined: Sun Sep 28, 2003 5:04 pm
Location: in the shower..

Post by carts »

dow50r wrote:Is the locker a 4 unbrako type, or the later 8?? Its not unheard of to get runout with the earlier type...or even a little bit of something under the ring....a bind in the centre flange that supports the ring....
Andrew
please explain the difference between the early and later lockers? what differentiates the 2?
If you want a spare 60 for bits-
http://carl.outerlimits4x4.com/viewtopic.php?p=1109227#1109227
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

dow50r wrote:Is the locker a 4 unbrako type, or the later 8?? Its not unheard of to get runout with the earlier type...or even a little bit of something under the ring....a bind in the centre flange that supports the ring....
Andrew
it's only a couple of years old, it's not a crusty old 4 bolt. I think the runout was ok, don't remember if I checked it or not. will check it when I have it out AGAIN
Free air locker to the first 20 callers!
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

carts wrote:
dow50r wrote:Is the locker a 4 unbrako type, or the later 8?? Its not unheard of to get runout with the earlier type...or even a little bit of something under the ring....a bind in the centre flange that supports the ring....
Andrew
please explain the difference between the early and later lockers? what differentiates the 2?
there isn't much similarity between the early and late type, except the operating principle. the early type have 4 cap screws holding the air side of the hemisphere together, and those bolts are famous for coming loose after a while. it is the easiest external telltale. later models have 6 or more bolts with little retaining clips so they theoretically can't come undone.
Free air locker to the first 20 callers!
Posts: 445
Joined: Mon Apr 18, 2005 12:32 pm
Location: Victoria

Re: 80 series driveline whine

Post by mistaboz »

What was the end result of the noise?
Has there been an end result?

Cheers,
Paul
Posts: 1383
Joined: Tue May 06, 2008 8:12 pm
Location: Newcastle

Re: 80 series driveline whine

Post by oldmate »

Yes. It turns out the whine was all in DD's head, and he has since been committed to the loony bin. That's why he's not around here any more ;)
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Re: 80 series driveline whine

Post by dumbdunce »

never really figured it out. vehicle now has 300,000km and plenty of noises, and noisier tyres. so it's hard to tell if the same noise is there or not. it has a different rear diff in it now, the last one the teeth on the pinion all fatigued and a couple fell off. otherwise still gong strong. holy freaking gravedig.
Free air locker to the first 20 callers!
Posts: 1105
Joined: Wed Jan 23, 2008 8:56 pm
Location: central coast down under

Re: 80 series driveline whine

Post by stilivn »

Are any of the hubs locked and have you checked that 4wd has disengaged properly ie front shaft spinning. When I put a set of locking hubs on mine before i got the part time kit for transfer case mine made same noise as this.

Ive just been had :finger: Anyways im sticking with hubs.
1993 80 series, 4" tough dog adjustable bb lift kit, LPG, 35" MTR'S
brooksy wrote:Branden Tagg.....He is the King of all f@rkups & a Gimps bitch after hours
User avatar
udm
Posts: 659
Joined: Tue Apr 26, 2005 8:35 pm

Re: 80 series driveline whine

Post by udm »

Rear shaft vibs should disappear after you have put a spacer (around 10mm) between the gearbox crossmember and chassis.
Ulises

www.OzSigns.com - 0400008422
Posts: 986
Joined: Tue Nov 11, 2008 7:17 pm
Location: Brisbane

Re: 80 series driveline whine

Post by TheBigBoy »

I have the whine. And its worse now. Its right upto the point when you stop and the speed of the whine is the speed of the car. It is already part time. I have just had a new gearbox and transfer rebuild, complete front end rebuild (cvs and axles, diff centre and bearings, complete rear diff rebuild (diff centre and bearings) and its still there!!! Only thing left is drive shaft and motor. Then its new.
Posts: 1383
Joined: Tue May 06, 2008 8:12 pm
Location: Newcastle

Re: 80 series driveline whine

Post by oldmate »

It's probably just normal gear noise all cars have to some degree. Difference with the 80 though is they don't have much if any sound deadening in the rear.
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
Posts: 986
Joined: Tue Nov 11, 2008 7:17 pm
Location: Brisbane

Re: 80 series driveline whine

Post by TheBigBoy »

oldmate wrote:It's probably just normal gear noise all cars have to some degree. Difference with the 80 though is they don't have much if any sound deadening in the rear.
Maybe, but mine is definately not gear noise. It sounds like bearing noise. So much so when I drive on the highway and there is a concrete wall next to the truck. I have to wind the window up.
Posts: 69
Joined: Wed Feb 10, 2010 10:48 pm
Location: yeppoon qld

Re: 80 series driveline whine

Post by dave89 »

ive got the exact same problem with mine it onli came around when i fittd a 3inch dobbinsons kit ive taken the front shaft out and it went away ive had my front shaft extended new uni's new spline so its a brand new tail shat preety well and its still there but not as bad as it use to be. could be a bearing in your gearbox drop all ya drive line oils and see if you have any metal shavings or chuncks im still trying to work mine out hopefully one day it will be sorted
Posts: 1105
Joined: Wed Jan 23, 2008 8:56 pm
Location: central coast down under

Re: 80 series driveline whine

Post by stilivn »

dave89 wrote:ive got the exact same problem with mine it onli came around when i fittd a 3inch dobbinsons kit ive taken the front shaft out and it went away ive had my front shaft extended new uni's new spline so its a brand new tail shat preety well and its still there but not as bad as it use to be. could be a bearing in your gearbox drop all ya drive line oils and see if you have any metal shavings or chuncks im still trying to work mine out hopefully one day it will be sorted
Mate yours is a different issue. Your is simply due to the changed angle of your front shaft which everyone who fits bigger that a 2 inch lift will experience. Options are double cardon shaft which has its own issues, part-time kit or there was a thread a while back about using the split shaft out of the rear of a hilux. You may also not have been give castor bushes with your kit which you do need.
1993 80 series, 4" tough dog adjustable bb lift kit, LPG, 35" MTR'S
brooksy wrote:Branden Tagg.....He is the King of all f@rkups & a Gimps bitch after hours
Posts: 1105
Joined: Wed Jan 23, 2008 8:56 pm
Location: central coast down under

Re: 80 series driveline whine

Post by stilivn »

For the Hilux shaft thread i was talking about search in toyota 'Handyvtip for 80 series owner' and you will need to have the v as it was a spelling mistake in the original title.
1993 80 series, 4" tough dog adjustable bb lift kit, LPG, 35" MTR'S
brooksy wrote:Branden Tagg.....He is the King of all f@rkups & a Gimps bitch after hours
Posts: 367
Joined: Sun Oct 04, 2009 5:50 pm
Location: Penrith, Sydney

Re: 80 series driveline whine

Post by howsie »

Mine has a whine that is audible when keeping the car at speed but goes away when accelerating or backed off. Been told is as a result of.using vmx80 in the transfer and the lay shaft is whining. Apparently although its better for shift its not so good for transfer unless using an additive. Been told to replace the oil with Mobil agrifluid 424 as this is basically the same but with the additive already in it. Will be dropping oil and replacing in august can post up if it made a difference if people are interested.

This is the oil they use in tractors and other heavy machinery.
93 RV, 5 in tough dog lift, dobinsons shocks and coils, PA, dual fuel, many many oil leaks and a ton of character.
Post Reply

Who is online

Users browsing this forum: No registered users and 18 guests