Gearbox ID

[Stan Palmer]

I don't know why left it on really. I have loosened the nut. They can be a bug**r and it was. If I take it off now the prospective buyer will no doubt complain when he receives it.
There's a lesson here: don't take your pictures in bright sunlight. Its quite a clean gearbox really !
Stan

[G15 Roy]

I don't know why left it on really. I have loosened the nut. They can be a bug**r and it was. If I take it off now the prospective buyer will no doubt complain when he receives it.
There's a lesson here: don't take your pictures in bright sunlight. Its quite a clean gearbox really !
Stan

I hope it made a good price as I paid far to much for a 1956 on last week and from a Club member but on eBay

[SPRIDDLER]

If I get a one piece rod, how do I get the other end of the two piece rod out?

I've never had to do it but you could remove the operating mechanism at the k/start end and poke it out with a piece of wire.
I have a 3/16" dia magnet on the end of an extending telescopic rod (like a car aerial) which would draw it out from the clutch basket end.

There's a vague possibility that a blob of BluTak on the end might stick to the (too oily?) short piece but I'd probably end up with the BluTak stuck up the shaft.
I expect someone will post an obvious way to do it............

[Rosy]

Have some convenient photos as I am selling one. Does your gearbox look like this ? Hopefully without the clapped out sprocket.

Burman GB number.jpg

Burman GB front.jpg

Burman GB sprocket.jpg

Yes it does.

[Rosy]

If I get a one piece rod, how do I get the other end of the two piece rod out?

I've never had to do it but you could remove the operating mechanism at the k/start end and poke it out with a piece of wire.
I have a 3/16" dia magnet on the end of an extending telescopic rod (like a car aerial) which would draw it out from the clutch basket end.

There's a vague possibility that a blob of BluTak on the end might stick to the (too oily?) short piece but I'd probably end up with the BluTak stuck up the shaft.
I expect someone will post an obvious way to do it............

I was thinking the same magnet on the end of the new rod, as long as nothing drops off the other end like the ball bearing if there is one!!

[Rosy]

53 MS. Could someone Identify the year of my gearbox so I can find the right spares list? I'm checking a 53 spares list but it seems different. It's marked G32-C52-F620 and within 4 corner brackets 937. it has a two piece thrust rod (what size should the midway bearing be?) Both bearings midway and thrust plate are 3/16. It's a 4 plate clutch which appears to be in a 5 plate basket, would it matter to fit an extra pair of plates? it's a 4 springs clutch. Thank you.

May Be its not G32 and its GB C52? Photo is best

I will photo it tomorrow.

[SPRIDDLER]

I was thinking the same magnet on the end of the new rod, as long as nothing drops off the other end like the ball bearing if there is one!!

I don't think that would work as I've just tried it in the shed with a piece of mild steel rod and a girt great magnet saved from a discarded tank bag. Nothing.

It might be possible to magnetise the end of a rod by stroking it with a strong magnet. I've done that on screwdrivers.

Here's a tech drawing of the 'box if it helps visualise what to do.

http://archives.jampot.dk/technical/Tra ... rawing.pdf

On my laptop to avoid getting a crick in my neck I can rotate the drawing using this button......

Rotate button.JPG

[Group Leader]

You can get some very small cylindrical rare earth magnets (very cheaply)that will wedge quite nicely into the end of various sizes of B&Q ali tube. I've made a couple including one using 5mm(?) OD tube.

Chose a size to suit .....

https://www.first4magnets.com/circular- ... 6|ps_1_645

(this is an example of the sort of thing I was referring to, not an advert for this particular supplier .....)

Very useful tool, ideal for picking up nuts that have dropped down into hard to get to little gaps and no doubt rescuing clutch rods etc As the poles of the magnet are on the flat ends and all but the end face of the magnet is buried in the ali tube that helps to stop the "stick" sticking too vigorously to steel parts at the sides (if you see what I mean!)

Alan

[adz25]

Would it be best to remove the outer gearbox cover at this point so you can assess the clutch operating mechanism for excess wear and the condition of the ball bearing? Then the other part of the rod can easily be pushed through.

I had an issue with the rod length and found out the operating dowel had worn to a concave end, having replaced the dowel it should be square in profile.

[Pharisee]

I had an issue with the rod length and found out the operating dowel had worn to a concave end, having replaced the dowel it should be square in profile.

I had a similar problem. A previous owner had apparently omitted the steel ball. When I bought the bike, the ball had been replaced and a longer, non-standard, pushrod fitted. I replaced all three components.