freewheel perhaps?

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nongrokal

Active Member
Posts
184
I dislike the feeling of trasmition windup all flanders seem to have, now i know that some is normal but i still dont like it, i have had a good look at makeing a dog clutch, it could be done but would be expencive. i have however been thinking about a free wheel on the rear prop shaft, i can get a sprag bearing and it should be easy for me to turn up a housing and shorten the shaft, by about 40mm. this would give 4x4 forwards only when the front sliped but i would lose 4x4 in reverse, i think this would be ok, it would also be ok to fit only two new tyres at a time, what do you all think?
 
I dislike the feeling of trasmition windup all flanders seem to have, now i know that some is normal but i still dont like it, i have had a good look at makeing a dog clutch, it could be done but would be expencive. i have however been thinking about a free wheel on the rear prop shaft, i can get a sprag bearing and it should be easy for me to turn up a housing and shorten the shaft, by about 40mm. this would give 4x4 forwards only when the front sliped but i would lose 4x4 in reverse, i think this would be ok, it would also be ok to fit only two new tyres at a time, what do you all think?


Eh???

Full moon again Ming...........
 
dont be a pr..k freewheel is perfectly possable, and afordable as an option to going 2 wheel drive as lots do
 
I dislike the feeling of trasmition windup all flanders seem to have, now i know that some is normal but i still dont like it, i have had a good look at makeing a dog clutch, it could be done but would be expencive. i have however been thinking about a free wheel on the rear prop shaft, i can get a sprag bearing and it should be easy for me to turn up a housing and shorten the shaft, by about 40mm. this would give 4x4 forwards only when the front sliped but i would lose 4x4 in reverse, i think this would be ok, it would also be ok to fit only two new tyres at a time, what do you all think?

Seems like a lot of messing, it would affect stuff like insurance.
If you don't like the feel of the freelander why not just buy something else?
 
so what do you do when you drive in somewhere and need to back out because your stuck????
be easier to just drop the rear prop off if your only going to have 4wd in one direction:rolleyes:
 
the other problem with any major transmission mods is the insurance, they will crucify ya if you wrap it up and it's a contributing factor. also would think they would be after an engineers report after the work.
 
fecking waste of time if the viscous design doesn't do as you want remove the gaylander rear prop
 
if i remove the rear prop there is no point in a 4x4, selectable 4x4 is the thing but to expensive, this way in snow or mud i will keep going, as for the purists that say why buy a freelander then alter it, perhaps you should look at british motering history, it is full of good cars that have been made better by amaters, land rover made a good car but they messed up wiyh the drive set up, it should have had a center diff as outhers did, i expect the bean counters got at it
 
Just buy an X-Trail, half decent 4x4 and you get switch selectable and even auto 4 wheel drive.

:behindsofa:
 
Surely a viscous coupling is basically a sophisticated free-wheel, so I'm not sure what you are gaining, apart from a bit of simplicity. On the other hand if you meet someone else in the snow and want to back up....
I'm not too keen on only having 2 wd when going down hill.
Just think, you are basically thinking of a system Land-Rover stopped using in 1950!
 
it should be possible to source an inline electromagnetic clutch to replace the viscous unit, and then have a switch in the car, some engineering expertise would be needed, but it shouldn't be too difficult, the problem arises when not on a slippery surface in direct 4WD where does all the wind up go, therefore you still need a viscous coupling to differentiate between the axles, so check it, replace it if necessary, i think there is little choice but to stick with it,
 
if you wanted to be anal about it you could use abs sensor data to computerize it.
But as a gaylander is flawed- why not cross it with a pajero and you can have a spanish ****er hippo with super select 4wd
 
This has been discussed on here before. I even contacted Ashcroft on this, their response is also in the thread:
http://www.landyzone.co.uk/lz/f9/freelander-selectable-4-4-a-80714-7.html

From Ashcroft:
interesting idea, some vehicles already have these, much better then the stock freelander design

something like this would be good :

Electro magnetic clutch

electro magnetic clutch, make it a direct replacement for the stock unit, sell it with wiring and dash switch and it could be a good product,

BUT !

it would need to be £ 500 max, we sell a new stock coupling for £ 370 + VAT, people may stretch to £ 500 + VAT as it will make the car drive much better being just front wheel drive, you keep the 4 wheel drive capability and you are far less likely to have the rear diff and IRD fail,

I would need to make it for £ 350 - £ 400 to make it worthwhile, this may be a challenge but worth researching for a few hours, I will have a look at it but we have quite a few development projects running at the moment,

thanks for bringing it to my attention

No updates yet...
 
Have you thought this through?

Wind-up occurs because the rear wheels do not rotate as far as the front wheels on going round a bend. The freewheel would have to be slipping in this case so as not to load the transmission.
The freelander transmission is designed to drive the rear wheels when the front ones slip. i.e. they are going faster/further than the rear wheels. So a freewheel to unload the drive when cornering would also decouple it in all forward motion, not what you wanted. It would be good in reverse though!
 
Yes vic i did give it a bit of thought, i understand that early freelanders have a differant rear diff to the front and drive faster from the back, for this a freewheel is perfect, my freelander seems to wear tyres at the same speed all round, if i was to replace just the front ones the rears should turn faster, it would even be possable to fit lower profile tyres on the back and as you say the most savige windup is in reverse say when parking. i did look into an electric clutch, perfectly ok but expensive, what would be perfect would be a magnetic partical clutch, this could replace the vcu and give a fully ajustable 4x4, i have contacted a firm in india for a price and will post it when it comes
 
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