The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => Gearbox, Clutch, Primary => Topic started by: edboy on 25.07. 2016 11:59
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gearbox arm adjuster woes. yesterday along the marlebone road/ flyover, no tools or place to park up on the hottest day of the year.
yes, youve guessed it the pushrod threaded adjuster on the gearbox arm decided to implode and compress the ball bearing into the hollow adjuster.had just enougth cable adjustment to take up the slack and get home. but its the second one thats failed in heavy traffic and surely someone makes an upgraded part?
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To avoid that kind of trouble , I always flick it in neutral and let the clutch lever out at traffic lights or in a traffic jam so the push rod's free and can't heat up.
Don't know if it really makes any difference but it's a habit I inherited from driving the Morris.
It's clutch push bearing is just a carbon ring which can wear out pretty quickly if you keep your foot on the clutch pedal for to long.
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Always taught to knock it into neutral whenever stopped in traffic. Not like today when people sit slipping the clutch on a gradient and don't understand what they are doing to the poor old clutch. *pull hair out*
ELLIS
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Hi Edboy,
+1 on the suggestions
You can improve the situation if you have a 4 spring clutch by adding an SRM type pressure plate with radial needle roller thrust bearing
I have added this type of bearing to several other clutches with good results
They are fitted to most japanese bikes
John
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thanks for the suggestions.
nothing wrong with the old green light, clunk , click, lurch and sound of the horn behind as i pull off but in london every 100 yards is a set of lights and i do like giving the twist and goes a run for their money.
i did run a triumph pre unit clutch once and found it dragged all the time but it was my destitute period and had to run what i had.
now i m older and just broke so the 6 spring has to stay and i ll make my own adjuster from an old bolt then.
surprised there is no upgraded part available.
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Always taught to knock it into neutral whenever stopped in traffic.
Or knock into neutral while still moving
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Hi Edboy,
You could cut a 1/4in from the clutch pushrod in the middle, reharden the ends and fit a ball or roller bearing between the halves ??
The 6 spring clutch does not like traffic *problem* *problem*
John
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You can improve the situation if you have a 4 spring clutch by adding an SRM type pressure plate with radial needle roller thrust bearing
Yes, a very worthwhile modification. It completely transforms the clutch operation. It is also well worth spending the time to make sure that the clutch plates are lifting squarely. Do that, and neutral can be selected from first or second when stationary very easily. I always knock it into neutral when I have to stop. If my memory serves me right originally that was another one of Devimeads mods.
John
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They're just not designed for riding the clutch. Get used to snikking into neutral as you come to a stop, and optimise the clutch to minimise the clunk into first when you take off.
(Or buy a Honda!) >:D
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and don't forget the simple things in life.
My Flash which is in the bottom shed and on SORN (shame shame) has not been moved for quite some time. so same clutch issue (can't select neutral) as I push it out and rode it in to the shed, it took just half a turn on the handlebar lever cable adjuster to restore perfect neutral selection
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My Flash which is in the bottom shed and on SORN (shame shame)
For non UK members who are interested:
https://www.gov.uk/sorn-statutory-off-road-notification/overview
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For non UK members who are interested:https://www.gov.uk/sorn-statutory-off-road-notification/overview
Oops thanks for that GB, must have been in an insular mode when I typed it *smile*
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well lads i ve come round to the overwhelming advise and now flick the old notcher into neutral before i stop at lighte etc. well what a transformation! i never knew it existed and now the renowned 6 spring clutch is top of the conversation down my local weatherspoons. [ hoorah!] .i highly recommend the six spring clutch and if you fit a suzuki one your wasting your money and should buy a honda instead as previously suggested.
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Hate being a killjoy but I'd touch wood *whistle*
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Self-gratification won't help Topdad!
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Can't take it with you when you go so buy an SRM clutch and forget about finding neutral anymore. Its a great clutch. *smiley4*
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if money was no object i would fit a norton clutch on a plunger mainshaft. however money priorities on beer and petrol means the 6 spring tangs get another filing and fibre plates a quick bit of rougthing.
i hope youre right ellis, when i expire i hope i never meet this bsa clutch again on the other side.
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You may be right Jools ,but I do dislike the bloody 6 springer unit. *smile*
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when i expire i hope i never meet this bsa clutch again on the other side.
That might depend on whether you've been naughty or nice.