CLUTCH BASKET TOUCHING PRIMARY

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as has been stated THERE IS NO SPEC FOR END FLOAT AS IT IS HELD BY THE BEARING ON THE KICK START SIDE . if you have any end float you either have a bad bearing or the clutch release mechanism is not holding the bearing tight or the nut is loose.
 
Quote. Shop manuals are written NOT as beginners guides, but for seasoned/trained mechanics to get them past the pit falls and TO the specifics that matter. What is an Old Brits "build sheet" ? Unquote.

Should end float for a specific application not be included to allow non seasoned/trained mechanics a chance to fix their own machines?
The Commando manual is not the best for info but it gives endfloat figures for the crank so why not gearbox, probably a question the writer of the manual would be able to answer.

Old Brits do an online guide to a gearbox rebuild, so I was referring to those pages, and they don't mention end float either.

Is your 10-15 thou lateral movement for a ball type bearing a standard guide to wear then?
 
willy mac said:
Should end float for a specific application not be included to allow non seasoned/trained mechanics a chance to fix their own machines?
The Commando manual is not the best for info but it gives endfloat figures for the crank so why not gearbox, probably a question the writer of the manual would be able to answer.
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As I already mentioned, if the [edit] timing side mainshaft nut is tight, there won't be any end float as the shaft is held tight to the T/S mainshaft bearing.
 
L.A.B. said:
willy mac said:
Should end float for a specific application not be included to allow non seasoned/trained mechanics a chance to fix their own machines?
The Commando manual is not the best for info but it gives endfloat figures for the crank so why not gearbox, probably a question the writer of the manual would be able to answer.
Click to expand...

As I already mentioned, if the [edit] timing side mainshaft nut is tight, there won't be any end float as the shaft is held tight to the T/S mainshaft bearing.
Click to expand...

Ok I now have the answer, so it looks like I need to replace mainshaft bearings. Now the next question, has anyone run their gearbox with a mainshaft moving in and out by 0.6mm?
 
willy mac said:
Checked the mainshaft nut on the kickstart side today and it's tight( well I checked it at 40lbs/ft) as there was some discussion about the 70lbs /ft mentioned in the manual being too much and 35-40 was deemed a more acceptable value.
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The original figure of 70 lbs.ft (which is considered too much) is for the drive side 'Clutch-to-mainshaft' nut.

The 'Mainshaft nut' (timing side) torque is 40/50 lbs.ft.
 
Now the next question, has anyone run their gearbox with a mainshaft moving in and out by 0.6mm?
Click to expand...

Only on a C15 and B40 with the mainshaft bush instead of the ball bearing introduced on the F models so the mainshaft floats, as soon as the endfloat gets above 10 thou then your clutch starts slipping as the initial lever movement is used to move the mainshaft and not the clutch, adjust the lever to take up the slack and the constant contact in the lift mechanism wears it out. The gears do not engage properly as the mating gears move backwards and forwards. IE don't bother.
 
Kickstart side mainshaft bearing knackered. New one ordered from RGM as they are cheaper than local bearing suppliers even with the postage. Should be back on the road by the weekend.
Thanks to everyone's contributions, lots of wee notes made in my workshop manual.
 
kommando said:
Now the next question, has anyone run their gearbox with a mainshaft moving in and out by 0.6mm?
Click to expand...

Only on a C15 and B40 with the mainshaft bush instead of the ball bearing introduced on the F models so the mainshaft floats, as soon as the endfloat gets above 10 thou then your clutch starts slipping as the initial lever movement is used to move the mainshaft and not the clutch, adjust the lever to take up the slack and the constant contact in the lift mechanism wears it out. The gears do not engage properly as the mating gears move backwards and forwards. IE don't bother.
Click to expand...

Cheers for that, always good to get first hand info.
 
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