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Twins / a65 max bore
« on: 02 October, 2020, 21:12:19 »
my barrels are on +60 now but usa sites have +80 pistons. would they bore out to 2mm oversize without issue?

Singles / b31 crankshaft re assembly help wanted
« on: 28 September, 2020, 21:29:35 »
hello b31 experts. i have a shim fitted under the smaller crank ball bearing. its worn but i cant see it on the drawings. can it be a shim? and does anything like a seal fit in the crank recess?

Singles / b31 crankshaft bearings
« on: 14 September, 2020, 20:32:41 »
 the original b31 crankshaft bearings are now superseeded by SKF , NGK,  and others. but i m unsure as to whether i need c3 or cn tolerances with any of the three bearings. i ve also seen MRJA bearings the same sizes [ 1 1/8 and 7/8 ] but which suffix is correct? any recommendations?

The Star and Garter / dvla castle walls breached
« on: 21 July, 2020, 21:07:38 »
yes you ve guessed it , the dvla ...corona,covid, no emails, blah.blah.blah  have given my 58 bsa a10 its original registration number.
with help and recognition from the club. thanks steve foden and the lady from the dvla casework department.
i rebuilt it so running for detailed inspection but  not necessary as dvla has recognised the green logbook details.
new v5 logbook is in the post.

Which BSA do you ride? / bsa a7 plunger
« on: 20 June, 2020, 00:56:18 »
came up from the bunker today to show off my latest project.
not fired up yet . i need to buy a 6volt battery and sort the lighting first.
but i m still in lockdown.

Singles / b31 alternator
« on: 21 April, 2020, 20:22:08 »
resigned to having to strip down engine at some stage as barrels oily and metal in oil pump found. i thought i could finish off chain alignment and rotor fitment and guess what? i tighten up the drive side nut and i lock up the crank as there is no endfloat. i ve read in a very vague engine strip article that crank spacers do wear. is that whats happened here?

Singles / b31 newby question
« on: 14 April, 2020, 21:45:07 »
hi , i m new to the singles , took the timing cover off today [ 1958 model ]and saw the timing side[/img][/img][/img] oil feeds have no oil seals. are they missing or is this normal ?  also is there anything else to check before i try to start the engine other than the obvious .tappet gaps, points gap , oil circulation.

Singles / b31 alternator help wanted
« on: 04 April, 2020, 23:25:15 »
hello, any one can help me with spacer 42 96 which is the crankcase spacer before engine sprocket. dimensions maybe?

Singles / b31 rear sprocket
« on: 25 March, 2020, 21:09:29 »
hello, i have an unworn plunger rear sprocket i d like to swap for my worn b31 one. however the b31 has a 7/8x2x9/16 bearing and the plunger 1x21/4x5/8. has anyone tried  to swop. i have a a65 sprocket assembly somewhere. would that fit in a standard b31 swing arm?

The Star and Garter / dvla new commitie
« on: 22 December, 2017, 17:57:30 »
i ve had my bsa plunger application rejected  for two new reasons from the dvla input services group.
1. dating certificate over a year old. [ by a few days ]
2. date of despatch is no longer valid. it must be date of manufacture.
merry christmas from the input services group.

The Star and Garter / "resist the dvla, and i thought it was the u.k. ?"
« on: 21 September, 2017, 22:29:15 »
just been rolled by the dvla over a nice registration number on a a10 plunger. registration is on their website so i thought an older type blue v5 would suffice. sent of bottom slip. vender [66 year old who owned it for 30 years] sent top part all signed etc. the application went to central casework group who asked for proof. frame number, number plate and most bits of bike .photos sent. now they cant issue a v5 as parts do not constitute a roadworthy vehicle. when restored apply again and advise on the next process.
so dvla cant issue a v5 to a car without an mot? not roadworthy.
choose one of the following options?
get a car? buy your number plate? or pay your money and do as your told?

The Star and Garter / machine dating
« on: 12 May, 2017, 12:13:28 »
hi chaps,
i sent of my machine dating application pack about 2 months ago but now i m worried it has been lost in the post. i can well understand the machine dating officer not wanting inconvenient phone calls but is there someway to email him?

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