Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Pages: [1] 2
Twins / a65 coil brackets unobtainium
« on: 28 April, 2022, 22:14:19 »
almost completed my mongrel 66 a65 with an oif engine project.
i have a65 side panels ,cross over bracket , but somebody nicked the coil brackets 68 9278 and 9279.
having rung around the usual bsa dealers and trawled internet i realise i will have to make these from scrap.
so could anyone be so kind to give measurements ?

Twins / a65 rocker spindle oilway
« on: 23 February, 2022, 22:09:28 »
hello a65 engine experts.
i had 2 rocker spindles with snapped whit bolts at the large diameter end. i have removed them both but although there is an oil hole in the large end there is no internal oilway to the rest of the rocker spindle. i m not familiar with the cylinder head oilways so what am i missing here?

Twins / hepolite valve springs
« on: 12 February, 2022, 23:06:00 »
i have a post 66 thunderbolt cylinder head with one set of valve springs missing so bought a new set on the internet to save time. these are branded as hepolite and looked good in the packet. however the coil wire thickness is thicker than the originals and when assembled the coils are bound up before the originals. in the end i only used one of the hepolite set and kept the originals in place. is this another case of inferior pattern parts or am i worrying too much about coil binding?

Singles / b31 18d1 box of tricks
« on: 14 December, 2021, 21:37:15 »
i have a b31 with the 18d1 points unit. can anyone advise me on how to remove condensor and lubricate auto unit when i m in there. will i have to reset points gap if i take the plate off? no information on the internet.
i have a neg earth inductive discharge unit i am going to fit but unsure whether keeping the condensor is  necessary. but can the points run ok without the condensor fitted?

Singles / shiny armoured oil pipes
« on: 12 December, 2021, 19:23:23 »
my alternative b31 had an annoying engine oil weep [drips underneath the gearbox ] after a ride and cured it by buying new shiny oil pipes of groanbay.
now the same weep is back after a month. i suspect the crimping and oil pipe is poorly made. anyone else have issues? made in india?

Singles / b31 alternator fine tuning
« on: 18 September, 2021, 20:50:32 »
hello. i m a bit confused by bsa service sheet 312 carb settings. my large fin 350 has 1" port and 376 carb , needl;e 3rd notch ,260 main jet and bellmouth.
it runs ok with a goldie silencer . should i go for a larger main jet? after a run the engine is hot  but i am running in. the issue will be when  i will need to hop along the odd motorway junction at a steady 60 to 70mph. do not want to seize the engine.
any advice?

Singles / noisy silencer
« on: 17 September, 2021, 19:45:47 »
i have a lovely looking goldie silencer but its too loud. i need some baffling so anyone been down this route?

Twins / a65 rear tyre choice
« on: 21 July, 2021, 22:46:41 »
i am looking at the anlas 400x18 rear tyre to fit my silentbloc swing arm a65. half the price of an avon or dunlop. so anyone have this tyre on their a65? any good ? what is the best tyre choice?

Twins / a10 alternator crank
« on: 17 May, 2021, 14:44:21 »
hi, a long shot i guess. but as a hoarder myself i know there must be others here.
i have some post 60 alternator crankcases. i have a small journal alt crank but would like to use a large journal one if they exist. even a photo of the crank would be interesting. d/s spline will be smaller than a10 or a65 on the originals.

Singles / b31 hepolite oil pumps
« on: 01 May, 2021, 23:31:47 »
where have they gone. none for sale in uk that i can see?

Singles / b31 lubrication help wanted
« on: 01 May, 2021, 20:20:27 »
i started up the b31 today after much oil priming but i suspect oil pump woes.
oil returns in the oil tank in dribbles rather than one long line . oil is being fed to rockers and big end but in skwerts and dribbles. i ve removed the ball bearing flow valve from the timing cover and air and oil skwerts from the hole, but nowhere near enougth pressure for a oil pressure guage.
any suggestions?

Singles / b31 alternator help wanted
« on: 24 January, 2021, 00:34:15 »
hello, can anyone with an alternator b31  help me with correct coil location . a photo would be most welcome.

Singles / b31 alternator wiring
« on: 17 December, 2020, 23:08:53 »
hello b31 electrical wizards.
i have a prs8 ignition switch with an original wiring loom.
i also have a 12volt battery with modern rectifier.
the original system has a wire from the alternator to ign switch giving a/c for emergency start. i assume i can keep this set up?
however there is another 3 d/c wires from the rectifier to the ignition switch which i guess need altering for a modern rectifier solid state?
any suggestions?

Twins / a65 rear wheel speedo drive 68 6142
« on: 09 December, 2020, 20:17:34 »
hi experts, i have a alloy rim qd hub a65 rear wheel but no threads for a speedo drive. i vaguely remember a one piece pressed steel cover that banged into a slot. also had speedo drive tangs and 3 grub screws. all the cover types seem to be listed as 68 6142s which is confusing.
anyone know what i m talking about and more importantly any for sale anywhere?

i ve revisited a65s as i bought a 72 engine with a small hole in the chaincase. might be warranty as although some parts were nicked but the crank and other parts like brand new. opened the sludge trap today. almost empty. . after a weld repair its going back together un touched.

« on: 02 December, 2020, 20:40:24 »
hi b31 experts. i will need to buy a reamer for the exhaust valve guide. my valve stem measures 0.350" just short of 9mm. but what size reamer do i need to buy? 9mm may be too big?

Pages: [1] 2