Rear wheel CV centre nut torque.

[fast freddie]

Can anyone please advise? I have a 2007 SR4. I sent the hub off to Radical to replace wheel bearing and CV joint. I then emailed them to find out the torque settings for the centre nut. They have advised up to 240 Newton metres.This seems a tad excessive, is this correct?
Over the winter I am going to put some new drive shafts and CV joints in the rear of the car. How do I remove the CV joints from the centre chain driven diff?
Many thanks

[BioBa]

Hey you can torque it down to any setting you like but why anybody would want to deviate from the recommended factory settings is a mystery to me.

[splitpin]

fast freddie said:

Can anyone please advise? I have a 2007 SR4. I sent the hub off to Radical to replace wheel bearing and CV joint. I then emailed them to find out the torque settings for the centre nut. They have advised up to 240 Newton metres.This seems a tad excessive, is this correct?
Over the winter I am going to put some new drive shafts and CV joints in the rear of the car. How do I remove the CV joints from the centre chain driven diff?
Many thanks

Worth double checking with them I should say: I have it down in my notes as 150ftlbs, so call it 205Nm - however, like the centrelock torque settings it may simply have been revised on the basis of their extensive real world data gathering.

[ScorpKing]

There has been quite a few questions on this recently and I believe Radical have revised the figure up to 240 Nm from 210 Nm There are arguements about whether dry or greased etc. We have experimented a bit this year and found 220Nm works well with a small amount of copper cote on the threads. The most important point to check them whenever possible on trackdays,testing or racing.

[mnrvortxf20c]

Thought he was on about the hub nut as opposed to centre lock wheel nut!
I have my wheels at 220lb/ ft now with some anti seize copper grease

[splitpin]

As I have first hand knowledge that the OP has four bolt wheels on his Rad (well, studs to be precise), he was, I was ............. so I have no idea why we're suddenly talking about C/Ls, but hey ho, there you go.

Edited by splitpin on Friday 3rd October 13:08

[mnrvortxf20c]

[fast freddie]

Thanks gentlemen. I knew this would cause some confusion, I was concerned that the guys at Radical had also made the same mistake. Therefore using Pistonheads for a bit of confirmation. Will go with Mr Splitpin's advice. Only use car for trackdays so the original settings will be fine . Unfortunately the name fast freddie is only a term of endearment. At Silverstone on Monday hope to see some other Rads there.

[fast freddie]

Thanks gentlemen. I knew this would cause some confusion, I was concerned that the guys at Radical had also made the same mistake. Therefore using Pistonheads for a bit of confirmation. Will go with Mr Splitpin's advice. Only use car for trackdays so the original settings will be fine . Unfortunately the name fast freddie is only a term of endearment. At Silverstone on Monday hope to see some other Rads there.

[splitpin]

fast freddie said:

I was concerned that the guys at Radical had also made the same mistake.

I doubt they'd do that: the recommendation for CLs is now 240ftlbs i.e. call it 325Nm, having been raised from 200ftlbs i.e call it 270Nm. So obviously, there is a massive difference between 240Nm and 240ftlbs.

Are some only tightening their CLs up to 220Nm? Utterly Bonkers

Have a good day on Monday - mate of mine is there having a try out for next year's GRDC. Regards to M & C from Hawkwind

[MindBend]

Straight from Radical Technical:

TORQUE GUIDE FOR RADICAL CARS

(MEASURED IN FT/LBS)
L = LOCTITE
L/T = LOCKING TABS
L/W = LOCK WIRE
R = ROLL PIN

DRIVE SYSTEMS
POWERTEC SR3 DRIVE UNIT RATIO NUTS (L) 80
POWERTEC SR8 QTEC END NUT/BOLT (L) 200
HEWLAND GEARBOX PINION NUT BEARING (L L/T) 150
CROWNWHEEL BOLTS (L L/W) 70
PINION END NUT 75
SR4 DRIVESHAFT NUTS (R) 180
SR4 REAR SPROCKET (L L/T) 50
DRIVE UNIT CROWNWHEEL BOLTS (L/T) 60

WHEEL BEARING/HUB NUTS
FRONT SR4/PRO6 180
REAR ALL MODELS (L/T) 240

WHEEL NUTS
CENTRE LOCK NUTS 240
4 STUD 70

ENGINE OUTPUTS
SUZUKI HAYABUSA WITH SPROCKET (L) 115
SUZUKI HAYABUSA WITH DRIVE COUPLING (L) 115
KAWASAKI WITH SPROCKET (L L/W) 90

UPRIGHT BOLTS
FRONT/REAR UPPER BOLTS (L/LW) 40
FRONT LOWER BOLT (L/LW) 100

BRAKES
FLOATING DISC TO BELLS (L/W) 8
BRAKE DISC TO HUB BOLTS 65

HAYABUSA REAR ENGINE CRADLE 45

[AJWSNR]

Crack off wheel nuts after running before loading car and no problems at later date when you try to open.easy with copper grease!

[AJWSNR]

Crack off wheel nuts after running before loading car and no problems at later date when you try to open.easy with copper grease!

[AJWSNR]

Crack off wheel nuts after running before loading car and no problems at later date when you try to open.easy with copper grease!

[AJWSNR]

Crack off wheel nuts after running before loading car and no problems at later date when you try to open.easy with copper grease!