I've got a broken A7 crank as an ornament. The crack started at the corner of the journal but continued at an angle & the rod was keeping it together so the bike was actually still running (just) when it came in. It was caused by a bad regrind where the journals hadn't been radiused correctly (or at all!). Luckily no crankcase damage.
Can I ask Paul whether this has 1970 time side inner and outer covers? It seems to me that people swap the old side ways clutch cable feed cases for the 1970 ones. Or were these introduced in '69?
I think it was around 1969/70. Draganfly have all the parts books on line - here's a link ... draganfly.co.uk/product-category/bsa/sparesparts-for-bsa-a50-a65/
@@paulhenshaw4514 I had a look, Yes so 1970 was the year those clutch cable entry point came in. But I have heard many people prefer them and swapped them over onto older bikes. will stand to be corrected.
I take measurements, allowing for the interference fit of the bush in the casing, then machine the inside of the bush so it gives the correct fit on the crank when pressed into the timing side case. SRM pumps are new and possibly have greater capacity, so should be an improvement over any used original, at the very least.
Yes, you can actually see me feel the right exhaust pipe briefly, but the second cylinder joins in soon after I tickle the carb for that side, then it runs ok on two.
Just curious, did the owner ever get a response from the last owner or dealership? I mean, they should at least give him some kind of refund after that kind of hammereddogshit
Nice bike Paul. Owned a 1965 Thunderbolt when I was a lad.Wonderfull ride . Pretty good torque for the day.
Fires up second kick after major surgery with the carbs set just by eyeballing them. I'm impressed, dude! You've got the touch.
Thanks, Bill!
It’s a great feeling when first startup goes so well. Thank you for sharing
Thank you for watching!
I always watch and listen to people that know what they are talking about especially with bsa bikes as I will be buying one in the future
Thank you!
Beautiful! Excellent job!
Thanks!
nice, miss the sound of my 70 650 Thunderbolt and guy who bought it rebuild the motor to fix the bushing thing
Love those BSAs!
Excellent work again Paul, that's engine sounds lovely, cheers Colin
Thank you!
Top job. Nasty broken crank. That would have gone with a bang!
Thanks - this one was caught moments before the 'Big Bang', I would think!
Nice work Paul, good as new. Couldn't ask for anything more.
Many thanks!
Very nice, indeed. Great work.
Thank you!
Nice one mate
2nd kick both times excellent.
I've got a broken A7 crank as an ornament. The crack started at the corner of the journal but continued at an angle & the rod was keeping it together so the bike was actually still running (just) when it came in. It was caused by a bad regrind where the journals hadn't been radiused correctly (or at all!). Luckily no crankcase damage.
Beautiful man.
Thank you!
Can I ask Paul whether this has 1970 time side inner and outer covers? It seems to me that people swap the old side ways clutch cable feed cases for the 1970 ones. Or were these introduced in '69?
I think it was around 1969/70. Draganfly have all the parts books on line - here's a link ...
draganfly.co.uk/product-category/bsa/sparesparts-for-bsa-a50-a65/
@@paulhenshaw4514 I had a look, Yes so 1970 was the year those clutch cable entry point came in. But I have heard many people prefer them and swapped them over onto older bikes. will stand to be corrected.
I have a ? my 77 boniville keeps blowing condensers on one side .can you help me
I have never heard of that before, sorry.
Do you ream the timing side bush with the crankcases bolted up, and does the SRM pump extend the life of said bush?
I take measurements, allowing for the interference fit of the bush in the casing, then machine the inside of the bush so it gives the correct fit on the crank when pressed into the timing side case. SRM pumps are new and possibly have greater capacity, so should be an improvement over any used original, at the very least.
Is it running on one cylinder for the first while?
Yes, you can actually see me feel the right exhaust pipe briefly, but the second cylinder joins in soon after I tickle the carb for that side, then it runs ok on two.
Just curious, did the owner ever get a response from the last owner or dealership? I mean, they should at least give him some kind of refund after that kind of hammereddogshit
I have no idea, but I would hope so.
yep twice graham's a65 broke its crank.
Ruined by a crappy indian pattern seat that sits too high at the front. nothing like as neat as the origonal
Not my department - I just rebuilt the engine properly after whoever 'restored' it made a mess of the engine.
@@paulhenshaw4514 OK sorry. I just had to send one back so got a bea in my bonnet about it I guess.
No problem - there are lots of crappy Indian and Chinese parts out there these days and some are even dangerous!