| Author | Message | ||
     Jess Brandt (Disco285) Member Username: Disco285 Post Number: 103 Registered: 09-2002 |
although these may sound like stupid questions i do not understand teh roto flex and whatever the other one is....nor do i know why some ppl on the board say they used them up till.....'97?? also, i hear all this talk about vibes, if there is only a little vibe, that is tolerable, will it hurt the vehicle to allow it to do this? thanks, anon | ||
| R. B. Bailey (Rover50987) Senior Member Username: Rover50987 Post Number: 404 Registered: 07-2002 |
The Rotoflex is a rubber doughnut that is in the place of what would be your rearmost u-joint on the rear drivershaft. I guess BMW uses them on cars, which makes sense, but the flex and punishment that a lot of us put on our Discos means that the Roto really is a poor alternative to a real U-joint. I will probably replace mine this next year sometime - or whenever the Roto dies. I think they stopped using them in '97. They vibrate more than a good u-joint because they don't allow for the high angle that a u-joint would. http://landrover.mrbaileyshistory.net | ||
| Jess Brandt (Disco285) Member Username: Disco285 Post Number: 104 Registered: 09-2002 |
thanks.... so my '95 has a roto? discovery series 1 | ||
| Will Roeder (Will_roeder) Senior Member Username: Will_roeder Post Number: 554 Registered: 02-2002 |
Jess-yep. it should have a Roto... | ||
| Ross Thoma (Rossthoma) Member Username: Rossthoma Post Number: 162 Registered: 08-2002 |
2003 Have Rotoflex in rear  Ross | ||
| thom mathie (Muskyman) Senior Member Username: Muskyman Post Number: 196 Registered: 11-2002 |
a roto-flex absorbs huge amount of vibes...thats what they do the problem lies in there limits. they are not designed to run on a heavily lifted truck. as you lift a disco the rear pinion angle moves from optimum and that movement stresses them beyond there limits making them go bad at a very accelerated rate they also dont like to be stretched when a truck is bound up and heavy torque is applied to them.this is what causes them to tear and ultimitly fail. I still think that using one in combination with a douple cardin shaft would be a sweet set up, as long as the pinion angle was correct(pointed straight at the TC output) the roto would soak up lots of the shock loads that would otherwize stress the rear axles. and cost wize you can replace a bunch of them before you get to the price of one axle...but the axle is only a quick fix compared to the roto. | ||
| Jess Brandt (Disco285) Member Username: Disco285 Post Number: 105 Registered: 09-2002 |
so, how, or how much is it to change the pinion angle? and also, if you lift your truck, and get vibes with a U joint, will the vibes hurt the vehicle, or are they just comfort issues? thanks, jess | ||
| Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1132 Registered: 02-2002 |
Pinion angle can be adjusted by modifying trailing arms/radius arms. Uncontrolled vibrations will eventually lead to the destruction of rotating components. |
