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British Bikes / Re: just when you thought youd found them all
« on: November 05, 2013, 09:09:37 PM »
my mate found 4 and loads of spares, 2 1920 3.5hp, of which mine is one, 1 1923 sports model and a 1931 model 9, jammy git
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British Bikes / Re: just when you thought youd found them all
« on: November 05, 2013, 08:36:33 AM »
yes, never give up, a mate has recently come across 4 vintage sunbeams in a garage, this one is now mine, i'm not going to restore as such, just make it work
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Autojumble / Marston sunbeam engine wanted
« on: August 08, 2010, 05:21:28 PM »
Hi folks, i'm looking for a pre 1931 sunbeam engine, ideally i'm after a mod 80 350 but would be interested in any ohv motor 350 or 500, what have you got ??
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British Bikes / Re: B32 gearbox woes it must be catching
« on: May 22, 2009, 10:42:05 PM »
Hi yes, thanks for your reply, this is the same gearbox as i have, will count plates tomorrow, but i think i have 4 of each, not sure....
i have rambled on a bit in my post so best simplify things.
The bike will not change out of 3rd gear, either up nor down with the clutch in, clutch out fine.
i have had the inspection plate off, no noticable movement when clutch is pulled in, i have tried with less end float and more endfloat it is worse the less endfloat i have, i think there is something amiss at the sprocket end of the mainshaft washer missing perhaps, the whole bike is being stripped soon so i have given up for now
i have rambled on a bit in my post so best simplify things.
The bike will not change out of 3rd gear, either up nor down with the clutch in, clutch out fine.
i have had the inspection plate off, no noticable movement when clutch is pulled in, i have tried with less end float and more endfloat it is worse the less endfloat i have, i think there is something amiss at the sprocket end of the mainshaft washer missing perhaps, the whole bike is being stripped soon so i have given up for now
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British Bikes / B32 gearbox woes it must be catching
« on: May 17, 2009, 08:46:53 PM »
Basically 1947 B32, on the move it selects 1st 2nd and 3rd ok, when changing to 4th it won't go in, and the gear lever has no downward movement whatsoever, solid, but when i try to change from 3rd to 4th without the clutch it slots right in, going back down the box 4th to 3rd goes in fine but the same problem arises when trying to go from 3rd to second and in the same way if i change without the clutch is goes right in sweet as you like.
This also is the same without the engine running, no clutch and it snicks through the gears fine hold the clutch in and the above problems occurs, in this situation with a cable tie around the clutch lever i get it to 3rd and put pressure on the gear lever, no movement but with pressure maintained, with my other hand i back off the pushrod adjuster as soon as pressure is released from the push rod it engages 4th right away with minimal force. I have taken the outer cover off and all of the gubbins is moving freely and correctly adjusted, the mainshaft (where the pushrod goes through) has some endfloat, i removed the inner cover and found that a washer was missing that sits between the nut on the end of the mainshaft and the inner case, i fitted a washer of 1.5mm and put it back together, no endfloat, but my problem is the same but this time without the clutch connected as i was turning the selector with the outer cover off, so i reduced the washer size to 1.00mm this gave me some end float but i am back where i started, perhaps i don't have enough endfloat tge service sheet states 2thou which i have but it seems the less endfloat i have the wiorse the problem becomes, the inside of the box is prestine, any ideas???...........
This also is the same without the engine running, no clutch and it snicks through the gears fine hold the clutch in and the above problems occurs, in this situation with a cable tie around the clutch lever i get it to 3rd and put pressure on the gear lever, no movement but with pressure maintained, with my other hand i back off the pushrod adjuster as soon as pressure is released from the push rod it engages 4th right away with minimal force. I have taken the outer cover off and all of the gubbins is moving freely and correctly adjusted, the mainshaft (where the pushrod goes through) has some endfloat, i removed the inner cover and found that a washer was missing that sits between the nut on the end of the mainshaft and the inner case, i fitted a washer of 1.5mm and put it back together, no endfloat, but my problem is the same but this time without the clutch connected as i was turning the selector with the outer cover off, so i reduced the washer size to 1.00mm this gave me some end float but i am back where i started, perhaps i don't have enough endfloat tge service sheet states 2thou which i have but it seems the less endfloat i have the wiorse the problem becomes, the inside of the box is prestine, any ideas???...........
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