BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: Barnsey on 30 Jul, 2022, 15:25

Title: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 15:25
Hi All,

  Can someone please advise as to where I can buy a tappet inspection cover for my C15 (1963).  The screw which retained it would originally have been in a recess in the middle, but this part of the casting has snapped off leaving a large hole.  The previous owner bodged this by using a hex screw with an over large washer to plug the gap.  Maybe he couldn't find a replacement either.

       Regards,

             Ian
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 15:34
Here is a picture for clarity
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 16:01
If I can't find a new cover I might use a flanged hex bolt plus a copper washer as a slightly better sort of a bodge.
Title: Re: C15 1963 rocker box inspection cover
Post by: chaz on 30 Jul, 2022, 16:38
if of any help its 40-0208 (40-208) and same as on B40. and B50.
I might go up unit tomorrow and take mine off then see if I can get one programmed on the cnc mill at work.
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 16:56
Thanks Chaz,

     Using that number I found a supplier in the USA who won't ship to uk anything less than $200.

  Best I have found is a supplier in Australia.  How crazy is that?  I'll see if I get any more response before the end of the weekend.  If not I'll place an order.  Should be here, with luck, before the end of my summer hols.

Ian
Title: Re: C15 1963 rocker box inspection cover
Post by: Ian C on 30 Jul, 2022, 17:20
Not exactly the same, but this may be available.   https://www.pesltd.uk/?product=E6&ptno=E6

Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 18:05
Thanks Ian!

   I might just order one of those.  It would be better than a bodge

    Ian
Title: Re: C15 1963 rocker box inspection cover
Post by: chaz on 30 Jul, 2022, 18:08
trouble with not exactly the same but close is the B40 decomp lever, I bought a twisted one, newly made but cant get a cable to suit so resorting to making my own cable, but have to make the adjuster and spring to suit. nipple of engine end different too.
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 18:34
Slightly off subject, but should my C15 have a decompressor lever?
Title: Re: C15 1963 rocker box inspection cover
Post by: Spaceman on 30 Jul, 2022, 18:36
The C15 wasn't fitted with one which was hardly needed even for the B40!

Returning to the subject: if it was me and I couldn't easily find a replacement, I would be tempted to repair the hole using one of the low temperature aluminium welding rods such as Durafix Easyweld Aluminium Welding Rods. Essentially, this would involve filling the hole with the weld material using a blow torch and then drilling the correct recessed hole afterwards. I've used similar welding rods to repair both aluminium and aluminium-zinc alloy castings with excellent results.
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 30 Jul, 2022, 18:46
Now that is an interesting idea!.  I'd never even heard of these welding rods.  That might just work.     What a range of ideas I am getting over a fairly simple problem!
Title: Re: C15 1963 rocker box inspection cover
Post by: mr.moto on 31 Jul, 2022, 13:11
Hi pm sent.
Title: Re: C15 1963 rocker box inspection cover
Post by: Barnsey on 31 Jul, 2022, 18:53
Sorry mr moto.  No sign of PM, I checked
Title: Re: C15 1963 rocker box inspection cover
Post by: mr.moto on 01 Aug, 2022, 19:34
Hi Barnsey I have tried again with the pm. Hope I sent it to the correct person this time.
If not try pm to me. This technology is beyond me.
mr.moto.