BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: hoogerbooger on 14 Jun, 2018, 11:31

Title: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 14 Jun, 2018, 11:31
mine are mashed and I need replacements to check/replace points & condenser. Will be a pliers job getting them off then they'll be dead.

Spent a few hours searching on line last night with no joy.

If anyone knows a supplier I'd be happy to hear.

Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: Phil C on 14 Jun, 2018, 22:12
Ordinary hexagon nuts instead?
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 14 Jun, 2018, 23:09
looks a very close fit. Not sure could get to & adjust. Also not sure what the thread is. But if you know otherwise.
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: Phil C on 15 Jun, 2018, 09:32
Yes, just had a look at mine.  A few months ago I thought I'd try ordinary nuts, but haven't got round to it, and, as you say, it might be difficult to get access with a spanner. From memory, I think they're 4BA, but I'm not certain.

My sleeve nuts are round section with a slot for tightening/loosening, which seems to me an odd design. I have several washers underneath in order that the slot is proud of the top of the screw so that I can get a screwdriver on. The slot seems to me not a very robust design, easily chewed up.

Phil.
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 15 Jun, 2018, 21:03
Yes mine similar. Except they're mashed and not proud anymore despite washers.

I can only presume they used this design as spanners/sockets can't get there.
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 26 Jun, 2018, 19:20
I've been looking but still haven't found a source for these

If anyone knows where I can get replacements it would be appreciated

( or anything else I can replace them with ?)
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: JulianS on 26 Jun, 2018, 19:49
Are these the ones?

https://www.ebay.co.uk/itm/40-0683-Contact-Breaker-Pillar-Bolt-BSA-C15-B44-B50-WW27513/331905952060?hash=item4d4722e93c:g:nOcAAOxyUrZS
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 26 Jun, 2018, 21:05
Thanks Julian

No those are the pillar bolts....but looks like part 14 on this draganfly link is the same as I need:

https://draganfly.co.uk/index.php/a65anda50/category/1333-timing-cover-contact-breaker

and they now seem to have them in stock. so I should now be sorted.

Brill
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: AWJDThumper on 26 Jun, 2018, 22:28
They appear to show them in stock at Ripe Motors:

http://www.ripemotorcycles.co.uk/RIPE%20unit.htm
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: AWJDThumper on 27 Jun, 2018, 06:59
ps. It's item LU169194
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: hoogerbooger on 27 Jun, 2018, 12:22
I contacted them a couple of weeks ago & have chased. They said they'd search. Sounds like if they still have them they are buried somewhere not easy to find ( when the weather is so nice!)
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: JulianS on 27 Jun, 2018, 22:36
These are a long way away;

https://www.ebay.co.uk/itm/NOS-2-Lucas-Points-Slotted-Nut-Screw-Set-169194-Tri-BSA-Norton-T100-T120-LU72/371300095839?epid=520884501&hash=i
Title: Re: Sleeve nuts for 4CA ignition plate - replacements ?
Post by: AWJDThumper on 28 Jun, 2018, 15:28
I've just ordered 5 pairs of sleeve nuts from the US for $15. Actually, I've got my daughter to order them since the postage to where she lives in the US is only $3! All she now has to do is to slip them into the next letter she sends home.