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Messages - AdrianS

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Singles / Re: B40T swinging arm bushes...
« on: 21 May, 2018, 16:58:54 »
If they are the same as my 1961 B40, they will be a bit of a pig to do!

My spindle had seized and the bike had to be stripped ( it was during a rebuild) for the frame to be put into a big press.

Several tons later the spindle came out. The bushes in the swinging arm were cut out and new ones pressed in. They had to be reamed in situ for the pivot pin to be refitted. I didn't leave mine as an interference fit in the bushes - just a very snug fit so a gentle tap with a mallet would remove the pivot. Make sure everything is greased up very well! There was also a shim that had to be fitted between the swing arm and the frame to take up lateral movement - cant remember which side without looking but it is important. I think also the handbook says the swing arm should be greased every 500 miles.

Singles / Re: Oil return
« on: 01 May, 2018, 08:19:10 »
When I fitted my rebuilt engine back into the bike, I was advised to take the plug out, loosen one of the rocker feeds, and run up and down the road with the bike in 3rd gear until oil drips from the rocker feed! Also recommended to use clear reinforced plastic oil tubing so can see the oil being returned from the engine!

Singles / Re: B40 centre stand
« on: 13 April, 2018, 17:18:06 »
At rest, my centre stand is probably about 1cm below the silencer but when pushing the bike off the stand the stand hits the silencer quite hard. It also did rattle a bit when riding so I am assuming something is worn somewhere. The pivot pins don't look too bad so I think it will be welding some stops onto the stand itself and then grinding them down to get the correct stand position!

Singles / B40 centre stand
« on: 13 April, 2018, 11:15:30 »
Finished rebuilding my B40 but left with a small problem.

The centre stand hits the silencer when taking the bike of the stand. I have put a bent long bolt with some thick rubber tube over it fixed to the cross member of the frame which the mudguard front fixes to, to act as a restrictor but not very happy with this.
I did notice the old original silencer had a dent underneath it ( not sure if caused by the stand or by a hammer).

Thinking about removing the stand and mig welding some blobs to the stand near the pivot to stop the stand retracting so far.
Is this acceptable? Any other suggestions appreciated.



Singles / Re: Carb leaking!
« on: 30 March, 2018, 18:10:46 »
Have ordered a new end cap and gasket.

Will have a good look at the main jet cover area and will fill on the bench before refitting to make sure no leaks are present!

Managed to get a new gasket for the oil pipe connection. Noticed it is quite thin compared to the original one. Reluctant to use any sealant on it other than a smear of grease.

Singles / Carb leaking!
« on: 28 March, 2018, 11:12:06 »
Just finished the complete rebuild of my 1961 B40.
Fired it up today for the first time since last July!
Now the snagging list starts:

New exhaust downpipe yellowed virtually immediately!

Oil leak from the oil feed pipes to the bottom of the engine.

Oil weep to one of the head feeds - new copper wshers to order.

Centre stand hitting silensor when taking the bike off the stand - bracket to make!

Biggest problem - leaking mononbloc. I did strip and clean the carb and fitted new gaskets etc but have got leaks from the bottom of the banjo intake; float chamber end, and from the main jet cover nut and the washer above!
Will remove the carb and bench test for leaks before refitting.
Never had problems with concentrics and cant remember problems in the past with monoblocs except for the float chamber end cap.
Any hints on curing the leaks? Can a smear of silicone gasket be used on the float end cap?
Any advice appreciated!

The Star and Garter / Re: Classic British
« on: 05 March, 2018, 19:22:19 »
Have got 2 addresses. Not too far from me so will pay a visit over the next week.
Also spoke to the credit card company who started a chargeback claim
But it is not guaranteed - depends if their bank account has funds in it.

The Star and Garter / Classic British
« on: 05 March, 2018, 16:26:47 »
Has anyone used this company for parts?

Ordered an exhaust pipe a couple of weeks ago. No goods arrived and no emails answered or phone answered.Googled reviews and it doesnt look good.

They are based in Walsall, West Midlands.
I've got a couple of addresses - think I may pay them a visit..............

Singles / Re: B40 oil feed
« on: 27 February, 2018, 10:30:51 »
I knew the pipe crossed over on some of them. Mine is an early one so
The feed pipe is on the outside of the engine!

Singles / B40 oil feed
« on: 27 February, 2018, 08:22:24 »
Can someone just confirm which way the oil pipes connect to the engine?
Is the outer pipe the return ie the pipes from the tank cross over?

Singles / Clutch cable routing
« on: 22 February, 2018, 10:31:43 »
Sorry to bother everyone with another small problem with my B40 rebuild.

What is the route of the clutch cable?
I cannot see what the best route for it is without fouling the chain or having to bend it through some very sharp bends.
I did see one B40 where someone had put a "P" clip on the engine rear mounting bolt to support the cable but that left a right angle bend into the engine case.

All advice appreciated!


Singles / Re: B40 wiring advice and spacer advice
« on: 21 February, 2018, 18:51:49 »
I had a look at another B40 this afternoon - had the spacer in the same place as mine!

Singles / Re: B40 Star air filter - what's the best option now
« on: 21 February, 2018, 11:28:13 »
The filter hasn't been put in back to front has it? It looks like the perforated gauze may be resting against the filter housing plate!

Singles / Re: B40 wiring advice and spacer advice
« on: 21 February, 2018, 11:25:00 »
Thanks for the advice
Here is a picture of the collar in place on the left hand pivot. I originally thought one of the bolts was a bit longer but mine are the same length. I think if the spacer is not needed I shall remove it

Singles / B40 wiring advice and spacer advice
« on: 20 February, 2018, 17:37:36 »
I am in the process of putting my B40 (1961) back together. 2 questions I hope can be answered:

1. I cant remember the order of the electrical components that are fitted under the seat on the crossmember. Can anyone help? Also does the loom go under the frame tube or to one side of it?

2. I have a distance piece about 7/8 x 3/8 inch which I am sure came of one end of the swinging arm. I have fitted it to the left hand side so that it makes access to the bolt and grease nipple better. It looks like it should be there but my concerns are a) I cannot find reference to it in any parts diagram and b) the swinging arm bolt is only going into the swinging arm shaft by about 3/8 inch because of the spacer.
Should I leave it or take it out before I get any further with the rebuild?  I have looked at many pictures on the internet and enlarged them but cannot see for certain what is on the bike.

ps there is a spacer on the parts diagram 108  41-4055  Not sure what this is for. It could be the spacer I have



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