http://www.lrenthusiastforum.com/ubbthreads/showflat.php?Cat=&Board=UBB1&Number=318182&page=0&view=collapsed&sb=5&o=0&fpart=all&vc=1
to this and the linked subject.

Tony, I had the same problem before I installed a lift, castor corrected radius arms, trailing arms, etc. I was told by Alan at Cityside Garage in Mass. that some Rovers have the noise and others don't. I removed the 3rd member and brought it to Alan and he replaced the inner and outer pinion bearings, seal, shim, space and set the backlash, it worked. No more noise.

Hope this helps.

Well after:
x2new front propshafts
x1 new rear propshaft
x1 replacment transfer box
x1 replacment front diff
x3 crawler box removals (testing)
new suspension bushes
rebuilt handbrake
different prop phasing tried
The vibration stayed.
Enter a Bluddy good bloke "Rod" AKA Roddy from here
Double cardan prop fitted
90 driven to national speed limits + or - a bit
NO VIBRATIONS WHATSOEVER ALL GONE NOTHING NOT A BLUDDY THING, YES YOU READ THIS CORRECTLY

So if you have +2 lift and castor correction arms (mine are QT BTW) and you have vibration on overrun above 60mph
I strongly suggest you fit a double cardan prop as the first thing you try.


Thanks to all for suggestions/assistance.

told you! :beer:

Good it worked out.

Brett

Glad you got it fixed.
Even though you got new shafts, where they custom built and balanced or off the shelf bits? Did you ever get the balance on them double checked?

While I agree that a DC shaft is awsome, I have both shafts set up that way, the change in lift can agrevate an unbalanced shaft.
When I first lifted the Rover I had the rear shaft balance checked, and it was out. Getting the balance corrected solved the problem.
I went to the DCs when I did the drive train mods, needed new shafts just made sense to get good ones made up.

Pete

Glad you got it fixed.
Even though you got new shafts, where they custom built and balanced or off the shelf bits? Did you ever get the balance on them double checked?

While I agree that a DC shaft is awsome, I have both shafts set up that way, the change in lift can agrevate an unbalanced shaft.
When I first lifted the Rover I had the rear shaft balance checked, and it was out. Getting the balance corrected solved the problem.
I went to the DCs when I did the drive train mods, needed new shafts just made sense to get good ones made up.

Pete

the new shafts I tried 4 in total were all brand new genuine GKN ones
all the same,
old set up
http://usera.imagecave.com/txc/crawler/prop.bmp-copy.jpg

new set up
http://usera.imagecave.com/txc/crawler/IMG_0931.JPG

again all genuine part used.

and thanks to anyone who offered assistance

Tony: Looking at you old set up it appears that the U-joints are out of sync.
That might cause some of the vibration. The new set up has the u-joints is the correct plane.

dan
old set up
http://usera.imagecave.com/txc/crawler/prop.bmp-copy.jpg

I tried the UJ's in every possible phase but with no effect,
the pic shows the standard phase for TD5 Defender propshafts
as supplied, it was brand new genuine one.
the Double cardan runs as sweet as I could hope for.

Tony did you move your crossmember backwards? looks like it. Only bolts in place with two bolts now ord did you make up new mounting points?

Cheers bowy who's prop is also fooling the crossmember..

Bowy
no it has never been moved
I guess the other holes are for the 200TDI version with the tubular x member,

On the front DS the flanges are not supposed to face the same direction, on the rear they are.

The TD5 props are phased 45 degrees to each other in the workshop manual and on every TD5 defender sold.

The TD5 props are phased 45 degrees to each other in the workshop manual and on every TD5 defender sold.

Ahhh, well thats where you got us. We are not allowed the TD5 on this side of the pond :D


Pete

Tony can you mail me a few pics from the rear mounting of your front crossmember? Think I'm going to move it back then. But have the make the mounting, because 2 bolts holding it probably won't be enough....

Cheers Bowy