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crank end float #703541
08/01/17 8:19 am
08/01/17 8:19 am
Joined: Jan 2013
Posts: 147
england
P
peter paul Offline OP
BritBike Forum member
peter paul  Offline OP
BritBike Forum member
P
Joined: Jan 2013
Posts: 147
england
hi , I have a a10 1959 , the end float is 15 thou, can I still ride it or is it too far gone, will it do a lot of damage , it is a strip down of the engine I would like to avoid this as I am only a sunday morning rider your thoughts on this will be very welcome , thanks P P

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Re: crank end float [Re: peter paul] #703542
08/01/17 9:01 am
08/01/17 9:01 am
Joined: Dec 2004
Posts: 9,377
Scotland
kommando Online content
BritBike Forum member
kommando  Online Content
BritBike Forum member
Joined: Dec 2004
Posts: 9,377
Scotland
15 thou end-float is fine, continue to enjoy Sunday mornings.

Re: crank end float [Re: kommando] #703544
08/01/17 9:06 am
08/01/17 9:06 am
Joined: Jan 2013
Posts: 147
england
P
peter paul Offline OP
BritBike Forum member
peter paul  Offline OP
BritBike Forum member
P
Joined: Jan 2013
Posts: 147
england
many thanks commando . P P

Re: crank end float [Re: peter paul] #703587
08/01/17 5:58 pm
08/01/17 5:58 pm
Joined: Feb 2010
Posts: 383
Upstate NY
R
Red Lapierre Offline
BritBike Forum member
Red Lapierre  Offline
BritBike Forum member
R
Joined: Feb 2010
Posts: 383
Upstate NY
BSA Service Sheet 208 states that it should be on A10 Maximum float should be .005 in. Any error should be corrected with additional packing shims. Commando has more knowledge than I do, I'm just going by the book.


57 A10 GF
61 A7
61 A10 GF
63 A10 SR
76 CB 125 Honda
76 FLH
2012 FLHTP
Re: crank end float [Re: peter paul] #703629
08/01/17 10:49 pm
08/01/17 10:49 pm
Joined: Feb 2014
Posts: 455
Cork Ireland
C
chaterlea25 Offline
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chaterlea25  Offline
BritBike Forum member
C
Joined: Feb 2014
Posts: 455
Cork Ireland
Hi
Check the sump plate filter for any shim debris, if there is any then the engine needs attention immediately
There are dozens of similar topics on the A10 forum
Excess endfloat is usually caused by the cush drive nut not being properly torqued up allowing movement between
the crank and main bearing inner race, this chews up the shims wears the crank mainshaft and the drive splines
On one occasion I saw a rod failure due to excess endfloat, but this was a severe case

John,


Moderated by  Allan Gill, Jon W. Whitley 


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