Vehicle & Technical > Discovery
front prop
Range Rover Blues:
Let's have it right, a Cardon joint is a double UJ, a double Cardon joint would be something to see :shock:
I'd steer clear of the Scrapion prop TBH, there is a reason why LR didn't use that joint themselves, the TD5 prop uses a bigger joint that I think is stronger, just my opinion!
Range Rover Blues:
did you read this recent thread?
http://forums.mud-club.com/viewtopic.php?t=16053&highlight=cardan
Budgie:
--- Quote from: "Range Rover Blues" ---Let's have it right, a Cardon joint is a double UJ, a double Cardon joint would be something to see :shock:
--- End quote ---
Well, if we're talking about getting it right.......................
Is it a CARDON, CARDAN or CARDEN joint? :D
nichollsm:
Just to give you a bit of background I'm a Development Engineer at GKN Driveline Propshaft Division and have worked on design and manufacture of propshafts for nearly 20 years. Our plant provides 100% of the propshafts to LR and has done for eternity.
To answer your questions the correct term is Cardan Joint. Otherwise known as Hooke's Joint or Universal Joint. And yes there is such a beast as a Double Cardan. The double Cardan for LR was designed by GKN to solve a specific problem on Discos.
As a matter of interest a single Cardan joint should only typical run at max 4-5 degrees whereas a Double Cardan only achieves constant velocity at its designed operating angle. From memory the original Disco Double Cardan was designed to run at 13 degrees. Running away from this will cause NVH(Noise Vibration and Harshness) issues but this would not be noticeable without instrumentation.
Budgie:
Thanks for the info, always helps to have an expert in the club. :wink:
The double cardan props are very good at releaving the propshaft vibration we experience when the vehicle has been lifted but 2 to 4 inches and new radius arms are fitted to correct the caster angle on the steering.
It's worked wonders on my 95 Disco, the steering now feels like it did before the lift and there is no vibration from the front propshaft at all. :D
Here's the operating angle on my front prop, not that you can see it that well from the angle the photo was taken as. :roll:
Nice to have you on board, I'm sure you knowledge of these items will be called upon in the future, its a question that comes up on a regular basis. :D
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