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Forty spanner sizes ?
Posted: Tue Jan 22, 2019 7:16 am
by african imp
Having just rebuilt my 1974 British Seagull forty series, I want to remove the original crank case nuts and bolts and replace with re chromed ones I have.
Finding a spanner, say imperial or metric will not work but a pair of Austin spanners may do the job, the ends that fit are marked 3/16" they are a little loose but I think they will work?
What sizes are the nuts please?
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 7:56 am
by Hugz
Nut and head the same. 3/16 Whitworth or 1/4 BS.
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 8:15 am
by Nudge
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 9:15 am
by african imp
Hugz wrote:Nut and head the same. 3/16 Whitworth or 1/4 BS.
Thanks, I have a set of Whitworth sockets here, the 3/16" size fits well, the 7/16" one fits also.
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 9:16 am
by african imp
Wow ! that really will help me, I will print that info out for future reference.
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 9:35 am
by african imp
This looks like a better idea than the Austin open ended spanners, will those bolts come out is the question?
They are a loose fit in the spare alloy crank case that I have here.
Re: Forty spanner sizes ?
Posted: Tue Jan 22, 2019 1:36 pm
by african imp
With the 3/16" socket on the nut and the 3/16" Austin spanner on the hex head bolt, the nuts came off ok and the bolts slid out very easily.
I removed one bolt and nut at a time.
I have a feeling that this motor has low hours and had an easy life?