one wheel drive?

F

falcons

New Member
i hope this isn't a stupid question......2 days ago it was really icy here so thought id have some fun planted the throttle but only one wheel span? figured that it was just that the one that didn't spin had more grip till this morning when i tried to spin the wheels and still only one spun the same one in fact why does it do this?

never driven rwd before so interested.
 
Because it hasn't got a limited slip diff fitted so it spins the wheel with the least resistance, but don't worry, because if you keep doing it you won't have that problem for long because you'll snap a halfshaft, then none of them will spin. Problem solved.
 
harveyp6 said:
Because it hasn't got a limited slip diff fitted so it spins the wheel with the least resistance, but don't worry, because if you keep doing it you won't have that problem for long because you'll snap a halfshaft, then none of them will spin. Problem solved.
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nice lol thanks for the info.must be weak half shafts if it can slip on ice and break lol
 
I think a sudden dose of traction might cause brown trouser (and wallet) testing time...... :LOL:


John.
 
If you get it right it will spin both wheels at once, but generally they pickup one wheel, just like a FWD car would.

It's the shock load when the tyre finally grabs, especially if you're being pretty brutal with the throttle. The 4 cyclinder cars seem pretty safe, I used to give my 2.2TC a lot of stick and never had any trouble, but the V8's have that extra chunk bit of torque.
 
webmaster said:
If you get it right it will spin both wheels at once, but generally they pickup one wheel, just like a FWD car would.

It's the shock load when the tyre finally grabs, especially if you're being pretty brutal with the throttle. The 4 cyclinder cars seem pretty safe, I used to give my 2.2TC a lot of stick and never had any trouble, but the V8's have that extra chunk bit of torque.
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just to clarify the spinning the wheels point it was on sheet ice and the revs used were less than it takes to move the car in the dry.
 
wonder which side it is?

The midget always spins the passenger wheel more because of the torque lifting one side of the axle and reducing traction. Also means it wears out the drivers side spring faster :(

Wondered if the P6 did a similar thing, as it's suspension is a lot cleverer than a leaf sprung live axle...

It's fairly easy to do in both the V8 and the midget...
 
I left a set of 11's last year while leaving a show :oops: it was on grass and it had been raining earlyer in the day.. So accidently done............ honest :roll:
 
falcons wrote,...
must be weak half shafts if it can slip on ice and break lol
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It isn't the half shaft that you'll break. I suspect Harvey was referring to the diff drive shafts, the discs mount onto them and the half shafts bolt to them.

Ron.
 
falcons said:
just to clarify the spinning the wheels point it was on sheet ice and the revs used were less than it takes to move the car in the dry.
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Does the 'hill hold' 2nd gear selection prevent this to some extent during winter driving when moving-off with an autobox:?:
 
your more likely to shatter the planet gears in the diff if you keep doing it.
the planet gears are the weakest part of the diff trust me i know i have done it many a times :oops:
 
On a P6 the two weak points are the extension shaft from the front of the diff forward to where the prop shaft attaches and the two output stub shafts which stick out of the diff casing and to which the discs and drive shafts are attached. Both fail in torsion. The extension shaft can be easily replicated in a better material and such shafts are available more or less off the shelf. But the output shafts are an awkward shape to copy. It will be possible, but you either have to start from a very large billet or execute a very awkward weld between the flange and main shaft.

As others have stated, the action that breaks things is not the spinning of wheels but the stopping spinning - ie when the wheel grips again. That introduces a very severe shock load.

Were both of the components identified to be stronger, then I'm sure something else in the diff would be next in line. But as it stands, problems with the diff gears or bearings are quite rare. There generally has to be something else wrong too, like an oil seal failure having lead to the diff being run dry or similar. The gears and bearings bit of the diff even seems to survive circuit racing competion use with large power outputs apparently unscathed. The diffs do suffer from an unusually large amount of backlash, which amplifies the sharp take up of the BW35 autobox to give the characteristic "clunk" on engaging drive. That is general and seems to be either deliberate policy on Rover's behalf or a virtually universal abrogation of build standard by the Pengham (Cardiff) plant that made all the transmission components.

Chris
 
(shock waves) thats what broke the planet gears on my metro. You get that on un-even surface where the wheel spins then hits a bump and trys to grip causing shock waves through the drive shafts or if a live axle etc /half shafts, also it is very easy to brake the planet gears using high revs and dumping the clutch,
 
herts2000 said:
(shock waves) thats what broke the planet gears on my metro. You get that on un-even surface where the wheel spins then hits a bump and trys to grip causing shock waves through the drive shafts or if a live axle etc /half shafts, also it is very easy to brake the planet gears using high revs and dumping the clutch,
Click to expand...

Big respect for spinning up a Metro 8) :LOL: It's all coming out now :wink:
 
1396midget said:
wonder which side it is?

The midget always spins the passenger wheel more because of the torque lifting one side of the axle and reducing traction. Also means it wears out the drivers side spring faster :(

Wondered if the P6 did a similar thing, as it's suspension is a lot cleverer than a leaf sprung live axle...

It's fairly easy to do in both the V8 and the midget...
Click to expand...
spun passenger side wheel
 
The metro's easy to sping, as was the 416 tourer. Not spun the v8 yet in the 2 years i've owned it!

Rich
 
I guess the auto and my mechanically sympathetic attitude to the car help...

Of course if it snows is it wrong to have doughnuts in the car park at work??? Maybe that should be my view through the windscreen video (which i fully intend to get round to eventually :) )

Rich
 
rockdemon said:
I guess the auto and my mechanically sympathetic attitude to the car help...

Of course if it snows is it wrong to have doughnuts in the car park at work??? Maybe that should be my view through the windscreen video (which i fully intend to get round to eventually :) )

Rich
Click to expand...

I'm just going to start my snow dance.....
 
GrimV8 said:
herts2000 said:
(shock waves) thats what broke the planet gears on my metro. You get that on un-even surface where the wheel spins then hits a bump and trys to grip causing shock waves through the drive shafts or if a live axle etc /half shafts, also it is very easy to brake the planet gears using high revs and dumping the clutch,
Click to expand...

Big respect for spinning up a Metro 8) :LOL: It's all coming out now :wink:
Click to expand...
Lol well with 120bhp you cant help it :) lots of torque steer :wink:
 
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