A65 4 spring clutch removal problem

[AJS Mick]

Hi can anyone help
I'm helping a friend replace the primary chain on his 64 lighting
Clutch is apart plates and centre removed rollers bearings out but the basket will not come off
It moves around and it will wiggle but will not come off
The engine sprocket is moving with the help of a puller but won't come off completely cos the chain is still on
Am I missing something surely the basket chain and front sprocket should all lift of together
Any ideas greatly received
Cheers
Mick

[Gup holland]

Haven't got a clue, seems to me you are doing right. When the center is removed and rollers are out it must be easy to remove sprocket and clutch basket together with chain .
The clutch sleeve is another story, they can be tuf to remove, but in your case not necessary.

Maybe a picture of the situation?

Gr alex

[Spaceman]

The normal way of doing this is to use the special extractor that screws into the clutch centre to pull it (and the rest of the clutch) off the tapered end of the gearbox mainshaft. If I understand what has happened, the cush hub has been pulled off exposing the rollers which have then been removed leaving the chainwheel a loose fit in the clutch centre? If this is the case, as far as I can see, there should be nothing left holding the chainwheel on to the clutch centre. As said, a pic of what is still in place would clarify things?

[AJS Mick]

Hi
As you say Spaceman the clutch centre is removed (came off with out puller) rollers out you can see the thrust washer behind and there is enough free sideways movement in the basket to see the flat head screws holding the gearbox sprocket cover in place but it  will not move forward even tried a 3 leg puller
The bikes in my mates garage so I'll get some pics in the week
Judging by the condition of the primary chain I'm guessing this has been an issue before so the chain has not been changed

Got me stumped 🤔
But as the wife says "that an't hard"😀

[Spaceman]

I was struggling to remember how the A65 clutch went together when I replied earlier but, having thought about it a bit more and looked more closely at the exploded diagram, I think the chainwheel is retained on the clutch centre by the steady plate behind it. In other words, you need to use the proper extractor to pull the clutch centre off the gearbox mainshaft and the chainwheel will then come off with it. Once off, you can then get at the back of it to release the chainwheel from the steady plate and clutch centre.

[AJS Mick]

That would makes sense of why it won't move
And I'm out of other ideas so it's off to get a puller for the 4 sting clutch
Thanks for all the help
Cheers
Mick

[Gup holland]

Maybe useful mick.

[Spaceman]

According to the 1962-65 Workshop Manual, the clutch extractor is 61-1912. However, be careful to make sure you order the correct one as Feked in particular list extractor 61-3766 for 4-spring clutches which is actually intended for the later 3-spring clutches with a UNF thread!

[Spaceman]

PS. The extractor looks like this with external thread to screw into the clutch centre!

[AJS Mick]

Thanks for the heads up on the correct puller
Another question while I have your attention 😀 the clutch push rod doesn't seem to want to come out from the clutch side (not pulled it very hard yet)
Is the bush on the gearbox end a tight fit and if we do get the rod out does the bush stay in place or drop into the gearbox outer cover ?
Cheers

[Spaceman]

Just going by the parts book, it looks as though there is just one bush but at the RH timing side end. I believe it is just a plain rod and therefore nothing should stop it being pulled out of the clutch end unless the other end is slightly damaged in some way. Presumably, it projects about 1/2" when the clutch lever is pulled in?

[AJS Mick]

Yes it sticks out about 1/2 I'm guessing the bush is a little tight fit so the rod will pull out
Just wounded if the bush stays in place or drops down somewhere

[Spaceman]

The bush will be a push/interference fit in the end of the gearbox mainshaft and will normally stay where it is. I guess it's there to accommodate a certain amount of sideways force on the rod by the clutch operating lever. Over time, it's possible a shoulder has been worn into that end of the rod and it may be this that is stopping it from being withdrawn from the clutch end?

[AJS Mick]

Hopefully we will get it the garage in the next couple of days and find out
Cheers