Upper Steering Column Bearings

Talk about the E-Type Series 2
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JerryL770
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#21 Re: Upper Steering Column Bearings

Post by JerryL770 » Fri Nov 23, 2018 5:07 pm

Well ......

............. if you think about it, the circumference of the race is larger at the larger diameter and smaller at the smaller diameter. So the needle has to roll differing distances top and bottom meaning the top diameter of the needle should be larger else part of it must skid.

I this instance (steering column), this would be of little significance I reckon :geek:
Jerome Lunt
1970 S2 FHC - Dark Blue, Red Interior, MX5 Seats

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mgcjag
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#22 Re: Upper Steering Column Bearings

Post by mgcjag » Fri Nov 23, 2018 6:09 pm

Hi Jerry...never gave it that much thought..assumed they would be parallel rollers....will have to get them measured.. Steve
Steve
1969 S2 2+2 & Building a C type replica

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mach2andy
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#23 Re: Upper Steering Column Bearings

Post by mach2andy » Fri Nov 23, 2018 8:08 pm

Hi Steve
I've just found a source for the wavy washer thats part of the lower bearing arrangement. Mine was broken as I think is quite common. Let me know if you need to source one and I'll pass on the details.
ATB
Andy
Andy Chalmers [in Hove]
1970 S2 FHC in pieces
1965 SB Corvette Ragtop

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angelw
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#24 Re: Upper Steering Column Bearings

Post by angelw » Fri Nov 23, 2018 8:48 pm

Steve Wrote:
never gave it that much thought..assumed they would be parallel rollers....will have to get them measured..
Hello Steve,
They are parallel. Given the steep taper of the bearing (Cone, Cup and Needle Race), the rollers would have to have quite a considerable taper so as not to skid; they skid.

I tried for a long time (without success) to get a bearing like the original. You may get lucky, but I doubt they exist.

One very common issue is that the bearing surfaces of the Cone and Cup suffer from Brinelling. In extreme cases you can feel it through the steering wheel, but in moderate instances, it's effect can be heard when turning the steering wheel. Accordingly, to complete the repair when replacing these roller bearings (if they were available), the bearing surfaces of the Cones and Cups should be re-machined. In doing so, the case hardening will either be removed altogether, or diminished, leading to accelerated Brinelling.

When Using Turcite to replace the roller bearing, unless the Brinelling is really serious, there is no need to re-machine the Cone/Cup surfaces. The Turcite is glued to the Cone surface (the valleys of the Brinelling holds a small amount of the glue - an advantage) and the valleys of the Cup Brinelling will hold a small amount of lubricant for a considerable time. However, Turcite can be run dry in this application.

Regards,

Bill
Last edited by angelw on Sat Nov 24, 2018 8:49 pm, edited 1 time in total.

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Julian.P
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#25 Re: Upper Steering Column Bearings

Post by Julian.P » Sat Nov 24, 2018 5:57 pm

The needles are parallel so it’s an easy mod providing your cage is serviceable.
Regards, Julian.

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Steve Marshall
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#26 Re: Upper Steering Column Bearings

Post by Steve Marshall » Mon Nov 26, 2018 10:42 am

Hi

I would be happy to sell you my unused solid bearings from SNGB at 2/3rds new cost!

Nothing really wrong with having a well greased solid bush replacement, just not quite pukka.


Steve
Nortonian mechanics Jan '69 S2 Roadster RHD Manual

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mgcjag
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#27 Re: Upper Steering Column Bearings

Post by mgcjag » Mon Nov 26, 2018 10:57 am

Thanks Steve.....the column is on a friends car ...a replacement column has now been sourced......but would be good to find a source for the original style roller type....but think its a lost cause.... Steve
Steve
1969 S2 2+2 & Building a C type replica

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#28 Re: Upper Steering Column Bearings

Post by Steve Marshall » Sun Dec 09, 2018 1:59 pm

There have been two S2 columns on eBay this week. First time I ever saw even one.

Why commission a unique taper roller bearing for a non-demanding application on a low volume car? Only Jaguar engineers would have known.

Steve
Nortonian mechanics Jan '69 S2 Roadster RHD Manual

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