130 Backlash

[Sly]

Can any one with a 130CC just duck out side and tell me what free play there rear drive shaft has with the hand brake off. Mine has about a inch..!!!!
Is that normal or is surgery req!!:confused:

[mark2]

Where are you measuring it? An inch at the perimeter of the handbrake drum is a lot better than an inch at the driveshaft .............

[DEFENDERZOOK]

a common place for wear is in the axle splines......

the splines on the axles wear out from constant rubbing if they are dry(not greased)......and cause backlash.......

they also become a weak point when under stress.....such as off-roading.....

[Sly]

Hmmmmm, looks like im hocking my ase or lining up some more over time.
Just come back from the shed and ive measured 80mil of free turn or movement from the hand brake drum (with the break of and out of gear).
I wonder if shims can be used to correct this??:confused:

[DEFENDERZOOK]

is your rear diff noisy when you drive...?

is there any vibration....?
what made you get under there and check it in the first place....?

[Sly]

a common place for wear is in the axle splines......

the splines on the axles wear out from constant rubbing if they are dry(not greased)......and cause backlash.......

they also become a weak point when under stress.....such as off-roading.....

Checked these and the UJs first all good,greased and tight.

[DEFENDERZOOK]

then it sounds like you have too much slack in the diff.....
which should be noisy with that much freeplay.....





(it might be time for an air locker.....:) )

[Sly]

is your rear diff noisy when you drive...?

is there any vibration....?
what made you get under there and check it in the first place....?

Good question, did a couple hundred kms on gravel last weekend and when back on the tar there was a hum from the rear end,kind of like nobbly tyres with to mutch air. Any way left the wagon in the shed for a couple of days(checked the prop shafts/UJs) took it out on mon all quiet on the tar, drove 40 ks on gravel and the noise came back.

[JDNSW]

Play in the drive train aft of the handbrake is made up of play in all the joints behind there. Some of these joints don't matter, others really do matter, and some point to "fix this NOW". The places to watch for excess play indicating real problems are the prop shaft itself - should be virtually none, and the drive flanges at the hubs, where some play is acceptable but watch for excess wear (take the hub cap off and observe movement). Most of the play is probably due to wear in the thrust washers in the diff, and is not a problem.

In summary, the problem is not how much play that matters, but where it is.
John

[rick130]

I'd double check the axle splines to drive hub. Pop the rubber cap off and rock the vehicle backwards and forwards.
These are a known problem in disc brake rear end 'fenders.
At 76,000km I had hardly any spline left in the drive member or axles, I still don't know how it hadn't totally sheared. A friend was left strandeed on the edge of the Simpson after one of theirs let go. The drum braked rear ends are oil lubed bearings from the diff and don't have this problem. ;)
It's easy enough to convert a disc rear end to oil lubed hubs, if one so wishes.

[camel_landy]

I'd double check the axle splines to drive hub. Pop the rubber cap off and rock the vehicle backwards and forwards.
These are a known problem in disc brake rear end 'fenders.
At 76,000km I had hardly any spline left in the drive member or axles, I still don't know how it hadn't totally sheared. A friend was left strandeed on the edge of the Simpson after one of theirs let go. The drum braked rear ends are oil lubed bearings from the diff and don't have this problem. ;)
It's easy enough to convert a disc rear end to oil lubed hubs, if one so wishes.

That would be one of my first checks as it's soooo easy to do. If they are worn, ou might as well stick in a set of MaxiDrives as there's not much difference in price. (well, there wasn't when I did mine) :D

Mark

[spudboy]

With handbrake off and out of gear, 1 inch of backlash in the rear prop shaft is fine.

[rick130]

That would be one of my first checks as it's soooo easy to do. If they are worn, ou might as well stick in a set of MaxiDrives as there's not much difference in price. (well, there wasn't when I did mine) :D

Mark

and no comparison in quality and strength. ;)

[Sly]

Thanks for all the advice! In the daylight and on the hoist the problem is worn axles and drive hubs.Going to follow RAMEies lead and remove iner oil seal (usr new drive caps) allow dif oil to lube the hole show.
Special thanks to Steve our local landy mec and his no stress mate!attitude.

[rick130]

if you are going oil lubed hubs, use a Land Rover RTC3511 seal. This is a double lipped, spring energised seal and far supperior to later versions used for the greased bearing hubs. Also be sure to mount it 4mm below hub height.