Search found 224 matches

by Roger
Tue Feb 10, 2015 2:25 pm
Forum: Parts for sale
Topic: parts for sale
Replies: 10
Views: 2286
Flag: Great Britain

Re: parts for sale

Hey Midge, same question as Mark... :smile: :smile:
mark118 wrote: Are any of the B50 parts still available?
by Roger
Tue Feb 10, 2015 2:21 pm
Forum: Tech
Topic: B50 rebore: your advice and thoughts please (PHOTOS)
Replies: 15
Views: 2660
Flag: Great Britain

Re: B50 rebore: your advice and thoughts please (PHOTOS)

This is great! Thank you everyone. Just one question (hopefully!). I see for example, EV B50 020 10-1 84.5 Piston assy complete with rings, pin and clips for std length rod. 10-1 However, there is also EV B50 020 11-1 84.5 Piston assy complete with rings, pin and clips 11-1 Same size piston, but 11:...
by Roger
Tue Feb 10, 2015 6:03 am
Forum: Tech
Topic: B50 rebore: your advice and thoughts please (PHOTOS)
Replies: 15
Views: 2660
Flag: Great Britain

B50 rebore: your advice and thoughts please (PHOTOS)

B50icon It is, I suspect, an oft-heard story. I cleaned the cylinder barrel using my sand blaster. So far, so good. cleaned b50 barrel.jpg The sad part is that I measured the ring gaps and found they were slightly out of spec. So then I thought ah, new rings. Got the new rings, still slightly out of...
by Roger
Tue Feb 10, 2015 5:40 am
Forum: Tech
Topic: B50MX restoration question
Replies: 13
Views: 2112
Flag: Great Britain

Re: B50MX restoration question

I am down from 185 lbs to less than 170, aiming for 160, eventually 150 lbs. Hopefully that will help performance considerably! :thumb
by Roger
Fri Feb 06, 2015 6:20 am
Forum: Tech
Topic: Help installing B50T piston rings (PHOTO)
Replies: 19
Views: 3588
Flag: Great Britain

Re: Help installing B50T piston rings (PHOTO)

Thank you everyone for your help! Much appreciated one and all. :thumb so your bore has been honed? Steve, it has not been honed. It looks smooth with no scoring, but there is some discoloration from regular use. By honed, I presume you mean deglazed? In which case, I am not sure if it is necessary....
by Roger
Thu Feb 05, 2015 6:24 am
Forum: Tech
Topic: Help installing B50T piston rings (PHOTO)
Replies: 19
Views: 3588
Flag: Great Britain

Re: Help installing B50T piston rings (PHOTO)

Thanks guys. BTW what is a
midgie wrote:a ring clamp
? Is it a special BSA tool (I don't remember seeing this in the workshop manual) and do I have to buy this, or can I fab something? Sorry for the dumb question.
by Roger
Wed Feb 04, 2015 9:24 pm
Forum: Tech
Topic: Help installing B50T piston rings (PHOTO)
Replies: 19
Views: 3588
Flag: Great Britain

Help installing B50T piston rings (PHOTO)

bsa piston.jpg Okay so I have finally got to the turnaround point so bolts will be turning clockwise instead of anticlockwise. First up installing piston rings. The instructions with the new rings are rather minimalist, and the shop manual doesn't provide a lot of detail. And I know rings have a pr...
by Roger
Tue Feb 03, 2015 6:30 am
Forum: Parts & Bikes wanted
Topic: B50 engine steady rubber
Replies: 6
Views: 1737
Flag: Great Britain

Re: B50 engine steady rubber

Thanks Steve. Yes, it is the round part that plugs into the frame in a welded bracket just behind the steering head. In the parts book, this is listed as an "Rubber - petrol tank anti-roll", page 53 ( Replacement Parts List 1971, 500cm3 models ), item #61, 82-9222. But I found it at BSA Unit Singles...
by Roger
Tue Feb 03, 2015 6:20 am
Forum: Project bikes
Topic: Back to the B50T restoration fray
Replies: 10
Views: 2818
Flag: Great Britain

Re: Back to the B50T restoration fray

Good point Skippy! Maybe I should just put the engine back in for now, since I understand the gearbox was working fine when the bike was laid up.
by Roger
Fri Jan 30, 2015 3:56 am
Forum: Project bikes
Topic: Back to the B50T restoration fray
Replies: 10
Views: 2818
Flag: Great Britain

Re: Back to the B50T restoration fray

Barry Creary wrote:your so close and when you put the lump back it's to late :shock:
Ah, Barry, you are tempting me! And it was a bugger to get the engine out, so I don't want to be doing that again anytime soon!
by Roger
Thu Jan 29, 2015 6:29 am
Forum: Project bikes
Topic: Another B50T breaks cover
Replies: 6
Views: 1789
Flag: Great Britain

Re: Another B50T breaks cover

Nice lookin'! I hope my B50T looks as good when I am done (although I have a B50SS front end and a megaphone exhaust pipe).
by Roger
Thu Jan 29, 2015 6:06 am
Forum: Project bikes
Topic: Back to the B50T restoration fray
Replies: 10
Views: 2818
Flag: Great Britain

Back to the B50T restoration fray

So it's been a while since I posted. Update so far: • Removed engine from frame • Stripped top end of engine • Removed timing and clutch cases (will not venture into gear box) • Disassembled front forks and front brake • Rebuilt main and headlight wiring harnesses (needed help with that!) • Removed ...
by Roger
Thu Jan 29, 2015 5:49 am
Forum: Parts & Bikes wanted
Topic: B50 engine steady rubber
Replies: 6
Views: 1737
Flag: Great Britain

Re: B50 engine steady rubber

Hi MM. Sorry for the delay replying. Yes, I need to replace one that was lost. Trying to source rubber parts seems to be the hardest part of the whole restoration thing! :uhu
by Roger
Mon Dec 15, 2014 5:47 pm
Forum: Parts & Bikes wanted
Topic: B50 engine steady rubber
Replies: 6
Views: 1737
Flag: Great Britain

B50 engine steady rubber

This is the piece that goes on the sides mounted to a frame lug. One of mine is AWOL. No idea how that happened! :shock:
by Roger
Mon Dec 15, 2014 5:39 pm
Forum: Tech
Topic: changing fork oil seals
Replies: 23
Views: 6181
Flag: Great Britain

Re: changing fork oil seals

I made a tool from a 1/2 inch bar by grinding one end down to the specs above. I used mole grip pliers to hold the bar tight while I turned the Allen key. The Allen screws came out quite easily. The fork seals on the other hand...
by Roger
Wed Dec 10, 2014 2:45 pm
Forum: Tech
Topic: changing fork oil seals
Replies: 23
Views: 6181
Flag: Great Britain

Re: changing fork oil seals

Thanks Steve. I made a special tool according to the specs so I am hoping that works! Is there an alternative in any case? (I recall reading somewhere that you could use a socket attached to a long extension...)
by Roger
Wed Dec 10, 2014 6:56 am
Forum: Tech
Topic: Help removing obstinate kick starter
Replies: 7
Views: 1363
Flag: Great Britain

Re: Help removing obstinate kick starter

Ah, before this BSA it was many a year since I turned a spanner, and I'd never worked on British bikes, so I have a lot to learn!
by Roger
Wed Dec 10, 2014 12:00 am
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

Perfect for the frame! I need to get me one of those!
by Roger
Tue Dec 09, 2014 11:59 pm
Forum: Tech
Topic: changing fork oil seals
Replies: 23
Views: 6181
Flag: Great Britain

Re: changing fork oil seals

please don't use a scewdriver from the inside, to hold the damper rod from turning Sorry, I am confused. The special tool acts like a screwdriver, right? To prevent the damper rod from turning when undoing the Allen key at the bottom of the leg. So what does this mean exactly? I looked for the othe...
by Roger
Tue Dec 09, 2014 11:49 pm
Forum: Tech
Topic: Help removing obstinate kick starter
Replies: 7
Views: 1363
Flag: Great Britain

Re: Help removing obstinate kick starter

Thanks Barry, that worked a treat! :thumb
by Roger
Tue Dec 09, 2014 6:07 pm
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

skippy wrote:Very good :thumb
Thanks Skippy! :mrgreen:
by Roger
Tue Dec 09, 2014 6:54 am
Forum: Tech
Topic: Help removing obstinate kick starter
Replies: 7
Views: 1363
Flag: Great Britain

Re: Help removing obstinate kick starter

Thanks Barry. Which end do I tap, just tap the nut you mean? (Sorry for the doofus question.)
by Roger
Tue Dec 09, 2014 6:34 am
Forum: Tech
Topic: Help removing obstinate kick starter
Replies: 7
Views: 1363
Flag: Great Britain

Help removing obstinate kick starter

Those following my progress will know I have the engine out of my 1971 B50T (yay). I removed the gear lever, after some muscular exertion and managed to avoid damaging the outer timing cover alloy, but now the kick starter is proving to be truly obstinate. Obviously I removed the nut (labeled Nut - ...
by Roger
Tue Dec 09, 2014 6:17 am
Forum: Tech
Topic: Rear hub condition advice
Replies: 21
Views: 3702
Flag: Great Britain

Re: Rear hub condition advice

Here is the front hub in comparison. There is considerably less deterioration of the hub finish compared to the rear hub.
IMG_0947.JPG
by Roger
Tue Dec 09, 2014 6:14 am
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

And the homemade non-welded stand does work! Yesterday I put the engine in the stand. It's not a precision fit but should be fine for the work I want to do. I like that it's on casters (which you can't see in this photo) so I can move it around easily.
engine-in-stand.jpg
by Roger
Mon Dec 08, 2014 11:28 pm
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

Unfortunately i do not have access to a welding kit, otherwise I certainly would have tried R R's set up!
by Roger
Sun Dec 07, 2014 12:01 am
Forum: Tech
Topic: Removing B50 engine - general advice, do's and don'ts?
Replies: 26
Views: 5696
Flag: Great Britain

Re: Removing B50 engine - general advice, do's and don'ts?

Good thought Midge. Though the bike is mechanically sound - it was running when the previous owner laid itup.
by Roger
Sat Dec 06, 2014 11:52 pm
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

Looks solid! Not much room to get at engine from underneath though. Nice CAD!
by Roger
Sat Dec 06, 2014 12:46 am
Forum: Tech
Topic: Removing stubborn side stand
Replies: 3
Views: 738
Flag: Great Britain

Re: Removing stubborn side stand

Thanks guys. This is great info! I will let you know how I get on :???:
by Roger
Fri Dec 05, 2014 8:41 pm
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

Thanks Brendan! Here are some photos showing how I put my stand together. Here are the items used to construct the engine stand. assmbled materials.jpg First I cut the metal. metal pieces.JPG Then I found the center of the piece of ply and made all my measurements from there so the engine would fit ...
by Roger
Fri Dec 05, 2014 5:06 pm
Forum: Project bikes
Topic: 1971 B50T project bike
Replies: 27
Views: 7360
Flag: Great Britain

Re: 1971 B50T project bike

Thanks Steve. Curious to note that there is no spacer in the front mount. It was quite a tight fit anyway. Mind you the weld on that mount looks like a kludge. So I wonder what the story is there? A bad day at BSA?
by Roger
Fri Dec 05, 2014 6:43 am
Forum: Project bikes
Topic: 1971 B50T project bike
Replies: 27
Views: 7360
Flag: Great Britain

Re: 1971 B50T project bike

Finally!!! The engine is out, and so is the champagne. :ban This proved somewhat more interesting than I expected. Key to this accomplishment was removing a spacer between the bottom mounting hole in the engine and the frame. It was so tight, I had to fab a piece of rebar with an indent so I could g...
by Roger
Fri Dec 05, 2014 6:26 am
Forum: Tech
Topic: Removing stubborn side stand
Replies: 3
Views: 738
Flag: Great Britain

Removing stubborn side stand

Well, the good news is that I have finally got the engine out of the frame! More about that in another thread. But (there is always a but!) I am having a devilish time removing the side stand. As you can see there is a large bolt holding it to the lug. On the other side was a nut, which came off eas...
by Roger
Fri Dec 05, 2014 5:55 am
Forum: Tech
Topic: Rear hub condition advice
Replies: 21
Views: 3702
Flag: Great Britain

Re: Rear hub condition advice

Thanks Nambo. Actually I have bought a reconditioned front wheel since the existing one has a missing spoke and rusty rims. It looks great, so the rear hub would not be a good match for the front. I'll post a photo shortly.
by Roger
Fri Nov 21, 2014 6:53 am
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

So I have bought all the stuff to make the stand. Some pre-drilled angle iron, a wooden board, nuts, bolts and even casters so I can move the thing around. Watch this space!
by Roger
Fri Nov 21, 2014 6:49 am
Forum: Project bikes
Topic: 1971 B50T project bike
Replies: 27
Views: 7360
Flag: Great Britain

Re: 1971 B50T project bike

koncretekid wrote:just lay the frame with motor down on its left side, disconnect the bolts, and lift the frame off the motor.
That is a great suggestion, and exactly what I shall do.
by Roger
Fri Nov 21, 2014 6:45 am
Forum: Tech
Topic: Rear hub condition advice
Replies: 21
Views: 3702
Flag: Great Britain

Re: Rear hub condition advice

Er, no chrome plate - at least on parts that weren't chromed originally! :roll:
by Roger
Thu Nov 20, 2014 3:06 pm
Forum: Tech
Topic: Interpret Rupert Ratio engine stand drawing
Replies: 30
Views: 5989
Flag: Great Britain

Re: Interpret Rupert Ratio engine stand drawing

What is Uni Strut?
by Roger
Thu Nov 20, 2014 3:02 pm
Forum: Tech
Topic: Rear hub condition advice
Replies: 21
Views: 3702
Flag: Great Britain

Re: Rear hub condition advice

Ha! I am going to ride it. And I want it to look pretty. I don't see those two things as being mutually exclusive. <201
by Roger
Thu Nov 20, 2014 4:17 am
Forum: Tech
Topic: Removing B50 engine - general advice, do's and don'ts?
Replies: 26
Views: 5696
Flag: Great Britain

Re: Removing B50 engine - general advice, do's and don'ts?

I do want to replace all the gaskets. There is quite a bad oil leak from the bottom of the engine somewhere. There is so much crud it's hard to tell where the leak is. I'm hoping it's just one of the gaskets, not a blown oil seal. Question is, could I replace all the main casing gaskets without remo...