The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Frame => Topic started by: mikeb on 03.07. 2016 07:53

Title: stearing head yoke damage - how bad, what to do?
Post by: mikeb on 03.07. 2016 07:53

Hello
on my 1961 super rocket I've dissembled the steering head with plan to install some new SRM tapered roller bearings. however there's deep groves in the stem as per the photos below. how bad is this and what to do? I'll at least have to file the groves down to get the old bottom cup off. will the taper bearings save me from needing to do more prior to reassembly?
thanks
Mike

Title: Re: stearing head yoke damage - how bad, what to do?
Post by: KiwiGF on 03.07. 2016 09:16

If it was mine I'd fill that that deeper groove up with weld, the one near the thread. The other groove does not look deep enough to worry about.

Title: Re: stearing head yoke damage - how bad, what to do?
Post by: Rocket Racer on 03.07. 2016 10:20

I've got a box of bottom yokes if you need one...

Title: Re: stearing head yoke damage - how bad, what to do?
Post by: chaterlea25 on 03.07. 2016 15:05

Hi,
I would go with RR's offer of a replacement yoke, as you are both in NZ
I would be afraid of the damage at the bottom of the stem could lead to cracks

John

Title: Re: stearing head yoke damage - how bad, what to do?
Post by: Peter in Aus on 04.07. 2016 06:44

Quote from: chaterlea25 on 03.07. 2016 15:05

Hi,
I would go with RR's offer of a replacement yoke, as you are both in NZ
I would be afraid of the damage at the bottom of the stem could lead to cracks

John

That is good advice, getting that welded up could be a bit dicey
Peter