The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Gearbox, Clutch, Primary => Topic started by: anjimehra on 19.02. 2016 06:49

Title: 1952 plunger A 7
Post by: anjimehra on 19.02. 2016 06:49

Hi
How long should the clutch operating rod be on the A 7 plunger. Iam told it is either 12 ins 0r 11 1/2 ins. Please enlighten
I would probably be using one plate less.
Thanks
Anji

Title: Re: 1952 plunger A 7
Post by: olev on 21.02. 2016 07:05

Gday Anji,
The one out of my 52 star twin is 11 1/2 inches long.
It is rounded on one end and flat on the other.
cheers

Title: Re: 1952 plunger A 7
Post by: KeithA on 22.02. 2016 00:48

Hello I measured the one I took out from my 1952 A7 star twin, and it is 11 3/8 inches. One end is just starting to mushroom.
I hope this helps
Cheers Keith

Title: Re: 1952 plunger A 7
Post by: anjimehra on 22.02. 2016 08:41

Quote from: olev on 21.02. 2016 07:05

Gday Anji,
The one out of my 52 star twin is 11 1/2 inches long.
It is rounded on one end and flat on the other.
cheers

Thanks Olev. I checked the one from my Super Rocket & that measures 11.75 ins, but has 5 friction plates. Iam getting an original rod ( 1/4 in dia ) which is 11 1/2 ins long & will try tat
Ride safe Anji

Title: Re: 1952 plunger A 7
Post by: anjimehra on 22.02. 2016 08:42

Quote from: Keith Atkinson on 22.02. 2016 00:48

Hello I measured the one I took out from my 1952 A7 star twin, and it is 11 3/8 inches. One end is just starting to mushroom.
I hope this helps
Cheers Keith

Thanks a ton Keith. Am getting an original rod 11.5 ins long & will try with that for starters
Cheers & take care
Anji

Title: Re: 1952 plunger A 7
Post by: chaterlea25 on 22.02. 2016 13:30

Hi All,
Some time ago I found this data
(for what its worth ??)

HTH
John

Title: Re: 1952 plunger A 7
Post by: RichardL on 22.02. 2016 13:52

John,

That is really interesting. It seems to be a physical guage that BSA might have provided to their authorized dealers.

Richard L.

Title: Re: 1952 plunger A 7
Post by: duTch on 29.02. 2016 11:35

 Maybe useless info now, but I had to pull mine out today to do other stuff, and pushrod would've maybe been 11,3/16" (or 11,1/4" close enough to 11.220" as per chart) before I tidied the ends up a while ago- now it measures 11,5/32" (183.5mm).
 I'm running four friction plates, and it works fine.