BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: spike123 on 14 Mar, 2020, 08:09

Title: R/h crankcase
Post by: spike123 on 14 Mar, 2020, 08:09
Hi
On my a65l 1967 engine in the book it says to take a plate off the l/h side to establish tic ,well mine doesn't have a plate on its at all so did this year have them
Mark
Title: Re: R/h crankcase
Post by: Nanonevol on 14 Mar, 2020, 14:01
What is "tic"?
Title: Re: R/h crankcase
Post by: chaz on 14 Mar, 2020, 14:02
tdc?
Title: Re: R/h crankcase
Post by: Bess on 14 Mar, 2020, 16:03
Hi,
    Is this the plate you are referring to?

If so its should be there from 1966, which includes your year, or a screwed plug from 1969 on.

Best wishes...
Title: Re: R/h crankcase
Post by: spike123 on 15 Mar, 2020, 04:14
Sorry should have been tdc not tic
Title: Re: R/h crankcase
Post by: spike123 on 15 Mar, 2020, 04:16
Yep that's the plate but nothing at all so wondering what l/h crankcase did he use ?
Title: Re: R/h crankcase
Post by: Nanonevol on 15 Mar, 2020, 11:45
Aren't they on the right hand crankcase?
(edit) Oh, right, name of the thread.
Title: Re: R/h crankcase
Post by: ChrisG on 15 Mar, 2020, 12:25
Spike,
Ah! could he have meant the circular cover on the Primary chaincase? That's where the mark on the Rotor lines up with a marker peg on the inside showing fully advanced for Dynamic timing with a strobe.
Alternatively, the plate or plug on the RH Crankcase if for a timing peg to be inserted and this slots into a groove on the crankshaft flywheel locking it into the same position for static timing (although you have to swing the cam to fully advance and lock it against the spring force).
The Dynamic with strobe is by far the easiest way.
Title: Re: R/h crankcase
Post by: spike123 on 16 Mar, 2020, 07:22
yes i can strobe it but just wondered why theirs no plate on the left
anyway still stripping down and noticed the butcher of Baghdad has been here crank case thread lug broken off and drain sump filter stud stripped , and it has a 4 spring clutch so no idea what year thats off
well keep going i suppose
Title: Re: R/h crankcase
Post by: Nanonevol on 16 Mar, 2020, 14:09
Try 1965 parts book for 4 spring clutch.  Found one on my '66.  Good clutch, work with it.
Title: Re: R/h crankcase
Post by: spike123 on 19 Mar, 2020, 04:42
Thanks fellas