Rear wheel CV centre nut torque.

Rear wheel CV centre nut torque.

Author
Discussion

fast freddie

Original Poster:

28 posts

132 months

Saturday 27th September 2014
quotequote all
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

317 posts

152 months

Sunday 28th September 2014
quotequote all
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

2,740 posts

197 months

Sunday 28th September 2014
quotequote all
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

109 posts

200 months

Thursday 2nd October 2014
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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

430 posts

147 months

Friday 3rd October 2014
quotequote all
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

2,740 posts

197 months

Friday 3rd October 2014
quotequote all
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

430 posts

147 months

Friday 3rd October 2014
quotequote all
biglaugh

fast freddie

Original Poster:

28 posts

132 months

Saturday 4th October 2014
quotequote all
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

Original Poster:

28 posts

132 months

Saturday 4th October 2014
quotequote all
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

2,740 posts

197 months

Saturday 4th October 2014
quotequote all
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? yikes 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 wink

MindBend

25 posts

128 months

Saturday 4th October 2014
quotequote all
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

70 posts

121 months

Saturday 11th October 2014
quotequote all
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

70 posts

121 months

Saturday 11th October 2014
quotequote all
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

70 posts

121 months

Saturday 11th October 2014
quotequote all
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

70 posts

121 months

Saturday 11th October 2014
quotequote all
Crack off wheel nuts after running before loading car and no problems at later date when you try to open.easy with copper grease!