Steering Wheel Locknut does not clamp

Technical advice Q&A
User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#1 Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Fri Sep 30, 2016 3:10 pm

Hello everybody,

I have reassembled, after overhauling, the upper steering column, with a very pleasing end result in appearance.
Unfortunately, when trying to "clamp" (turning the "C40029 locknut clamping shaft to inner column" ) the steering wheel to a fixed height, I could never succeed. I always manage to push-pull the steering wheel in and out with no resistance.
Is there some "special sequence" that I should fit the clamping parts? All suggestions welcome!!!

Used the search function on the forum, but could not find any topics, related to this problem, but then again, I could be wrong.

Cheers
Jan
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links


JagWaugh
Posts: 559
Joined: Sat Sep 21, 2013 12:56 pm
Location: Eglisau, Switzerland
Switzerland

#2 Re: Steering Wheel Locknut does not clamp

Post by JagWaugh » Fri Sep 30, 2016 4:44 pm

Good evening Jan,

Did you by any chance leave out either or both of the "C" shaped collets that do the clamping? Laid out in a circle the OD is about 30mm, and the cross section is a wedge shape.

Andrew

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

neil4444
Posts: 785
Joined: Fri Mar 06, 2009 10:46 pm
Location: East Sussex
Great Britain

#3 Re: Steering Wheel Locknut does not clamp

Post by neil4444 » Fri Sep 30, 2016 5:54 pm

Neil
1962 S1 OTS
1967 S1 FHC
1967 S1.5 FHC

Link:
BBcode:
HTML:
Hide post links
Show post links


christopher storey
Posts: 4493
Joined: Sun Mar 09, 2008 3:07 pm
Location: cheshire , england
Great Britain

#4 Re: Steering Wheel Locknut does not clamp

Post by christopher storey » Fri Sep 30, 2016 6:08 pm

And you have to make sure that you fit the split cone the correct way up. Psychologically, it looks as if the cone would go with the narrow end downwards, but in fact IIRC they go with the wide end down and the narrow end nearest the steering wheel. They , when the locking wheel is screwed downwards , it clamps the cone gradually more tightly together, thus locking the shaft

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#5 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Oct 02, 2016 12:22 am

Cheers!! I will disasemble everything again and double check tomorrow. Especially the exploded diagram in the PDF will come in most handy.
Again, thanks everybody.
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#6 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Mar 10, 2019 7:04 pm

Need to re-open this post. Still no luck, the steering wheel locknut, after following the fitting instructions mentioned above still does not "lock".
Having seen the wheeler dealer episode on the Jaguar XJ6 coupe where Ed China has to replace the collet in order to fix the same problem, I was wondering, did anybody manage to solve this problem on their car by changing the Split Collet - part number 8671?

Cheers
Jan
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

mgcjag
Moderator
Posts: 4387
Joined: Fri Jul 09, 2010 6:15 pm
Location: Ludlow Shropshire
Great Britain

#7 Re: Steering Wheel Locknut does not clamp

Post by mgcjag » Sun Mar 10, 2019 7:39 pm

Hi Jan...been playing around with a steering column recently....there are two different split collets on the upper shaft....the cone shaped that comes in two halves clampes the steering boss/wheel to the shaft......the other collet that you mention C8671 https://www.sngbarratt.com/uk/#!/Englis ... 57d43b5157 tightens the shaft to the desired height by useing the large black adjuster.....its held in place by a large circlip...do you have this fitted.......if not it wont clamp......if you do have the clip fitted then its not compressing enough onto the splined shaft to stop the shaft moving up/ down.....so either the adjuster is not tightening enough or the collet or shaft are worn...Steve
Steve
1969 S2 2+2 & Building a C type replica

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#8 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Mon Mar 11, 2019 9:36 pm

Thanks, will definetely look into that!
Hope the C - Type replica build is going well?

Jan
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#9 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Mar 17, 2019 12:46 pm

I disassembled the "affected" parts.
If I push down, by hand, the collet C8671, the shaft is difficult (almost impossible) to move with my other hand.
When I put the collet back into the black adjuster, and fasten it to a point that the wheels start to turn, but the shaft is just loose. The adjuster basically does not push down the C8671 collet deep enough.
I must say that the collet shows the impact of having been fastened plenty of times over the years.
Considering that the adjuster is on back order, I will try my luck with a new collet.
Thanks for the help.
Jan
Image
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links


288gto
Posts: 1016
Joined: Wed Nov 14, 2012 8:59 pm
Location: United Kingdom
Russia

#10 Re: Steering Wheel Locknut does not clamp

Post by 288gto » Sun Mar 17, 2019 2:22 pm

Hi Yan

If you are still struggling I am fairly sure I have the whole upper assembly, Adjuster nut, collets, clamp and splined shaft.

Image

Items 8,9,10, 12 and 13.


Simon
Simon
1969 S2 OTS

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

mgcjag
Moderator
Posts: 4387
Joined: Fri Jul 09, 2010 6:15 pm
Location: Ludlow Shropshire
Great Britain

#11 Re: Steering Wheel Locknut does not clamp

Post by mgcjag » Sun Mar 17, 2019 3:53 pm

Hi Jan...so the collet works to lock the shaft if you push down by hand.....so it must be the big adjuster is not pushing it down far enough.....is the circlip holding it in far enough...and is the adjuster able to screw fully down.. Steve
Steve
1969 S2 2+2 & Building a C type replica

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#12 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Mar 17, 2019 10:39 pm

I cleaned the thread of the adjuster, but I think you're right in suggesting that it doesn't screw fully down. Even though I fasten it so much the wheels are turning... Guess I'll have another look at the circlip and where it sits. Thanks.
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links


288gto
Posts: 1016
Joined: Wed Nov 14, 2012 8:59 pm
Location: United Kingdom
Russia

#13 Re: Steering Wheel Locknut does not clamp

Post by 288gto » Sun Mar 17, 2019 11:04 pm

Hi Jan , by “adjuster” I presume you mean item 9 in the picture? If this isn’t available I definitely have several of those all vapour blasted and painted.
Hopefully it is just an assembly error. Let me have a look tomorrow what other spare individual parts I have.

Simon
Simon
1969 S2 OTS

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#14 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Mar 17, 2019 11:34 pm

Indeed item 9. Will have to check also the thread of where it screws onto. Had the adjuster shot blasted and powder coated, and some other bits of the column, so it might just be an assembly glitch. Something for next weekend. Cheers
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

mgcjag
Moderator
Posts: 4387
Joined: Fri Jul 09, 2010 6:15 pm
Location: Ludlow Shropshire
Great Britain

#15 Re: Steering Wheel Locknut does not clamp

Post by mgcjag » Mon Mar 18, 2019 8:37 am

Powder coating....i bet thats going to be your problem...the curse of powder coating anything with a thread
Steve
1969 S2 2+2 & Building a C type replica

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

Topic author
JD-JAG66
Posts: 182
Joined: Sat Mar 22, 2014 12:40 pm
Location: Italy
Italy

#16 Re: Steering Wheel Locknut does not clamp

Post by JD-JAG66 » Sun Mar 24, 2019 8:19 pm

Solved. Cleaned the thread with a microscopic cutting disc. Happy days.
Cheers
Jan Deurinck
Series 1 - 1966 - 2+2 - LHD - American Import
Si vales, bene est, ego valeo

Link:
BBcode:
HTML:
Hide post links
Show post links


288gto
Posts: 1016
Joined: Wed Nov 14, 2012 8:59 pm
Location: United Kingdom
Russia

#17 Re: Steering Wheel Locknut does not clamp

Post by 288gto » Sun Mar 24, 2019 8:47 pm

Excellent news!
Simon
1969 S2 OTS

Link:
BBcode:
HTML:
Hide post links
Show post links

Post Reply Previous topicNext topic