Author Topic: C11G clutch and kickstart  (Read 992 times)

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Online Owen

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Re: c11G clutch and kickstart
« Reply #15 on: March 07, 2019, 01:20:07 pm »
Just to make it clear, you have a C11G. From the engine and frame numbers (and 3 spring clutch)
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline elevensies

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Re: C11G clutch and kickstart
« Reply #16 on: March 07, 2019, 01:24:10 pm »
yes, i wasnt aware it was unclear sorry

anyway heres the very poor vid hope this helps,

it may be the possibility the springs need to be tighter???


Offline Brillandy

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Re: C11G clutch and kickstart
« Reply #17 on: March 07, 2019, 01:35:55 pm »
Sounds to me like your spacers (that fit over the bolts) are missing because you need to fully tighten the clutch tension nuts as far as they will go - i.e. up against the spacers.  If they are missing the clutch will not operate smoothly and grab.
Looking at your video, the tensions are not adjusted correctly because differing amounts of spring are showing below the nuts.

Andy
« Last Edit: March 07, 2019, 01:41:24 pm by Brillandy »
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Offline elevensies

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Re: C11G clutch and kickstart
« Reply #18 on: March 07, 2019, 02:02:47 pm »
Thanks Andy, iv just sussed this out, your correct

i feel a bit embarrassed that all this took was a tightening of the 3 bolts, hmmm my error
but such a simple answer, created such a headache hahah


im going to order new bolts as these are worn,

what tightness should i be looking at please? currently im now showing around 2 threads and now i have the normal operation of engine and clutch
should i need more tension?

Offline timsdad

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Re: C11G clutch and kickstart
« Reply #19 on: March 07, 2019, 04:17:47 pm »
If it's the three clutch spring studs you're referring to, 11s, they're not ordinary bolts and it's unlikely that they will need replacing. The nuts are tightened right down onto the spacers, tight, tight, if yours haven't been lost or mislaid, so they can't be over-tightened onto the plates. If everything is put back together, as it was before it was pulled apart, then it should work fine again with what's there.

I'd think it would be best if you bought a Pitman, Haycraft or BSA Instruction Book for the C11G as it would be very helpful to you, only about a tenner off e-bay or an autojumble. All the information on stripping, repairing and reassembling everything on all the pre-unit C models is also in the relevant section on this site for only the cost of your electricity. Just have a poke about down the bottom of the menu list, it may save you further embarrassment!


Ray
Just a motorcyclist.

Offline Paul S

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Re: C11G clutch and kickstart
« Reply #20 on: March 07, 2019, 04:45:12 pm »
Just one more note, when you start the engine again, make sure you look in the oil tank as soon as the engine is running and check that the oil is returning to the tank, these oil pumps are notorious for seizing up when the bike has been left standing, lack of oil cirulation will destroy the engine.

It should look something like this.

Growing old is compulsory, but growing up is optional.
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Offline elevensies

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Re: C11G clutch and kickstart
« Reply #21 on: March 07, 2019, 05:03:54 pm »
great stuff thanks for that

i will check tomorrow when i start it up again

Offline elevensies

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Re: C11G clutch and kickstart
« Reply #22 on: March 07, 2019, 05:06:13 pm »
Ray, i have an original service book, but it didnt describe wjhat issue i thought i had to start with

thanks again  ;D

Online chaterlea25

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Re: C11G clutch and kickstart
« Reply #23 on: March 07, 2019, 06:46:55 pm »
Hi 11's
Quote
The nuts are tightened right down onto the spacers

What I said on page 1  ::) ::)

Looking at the video The kickstart pedal does not seem to have a cotter pin fitted ???

John

Offline elevensies

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Re: C11G clutch and kickstart
« Reply #24 on: March 07, 2019, 07:58:05 pm »
i know John, sometimes i cant see the wood for the trees, im sure im not alone here .....

the cotter pin is broken, so only half was in, i need to pick one up tomorrow

Iv just ordered from draganfly 3 new spring nut/caps, as mine are worn, these are listed, so i just bought them anyway

are these right? and would i screw these down tight too?

https://www.draganfly.co.uk/a65anda50/product/14324-clutch-spring-nut

Online chaterlea25

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Re: C11G clutch and kickstart
« Reply #25 on: March 07, 2019, 08:32:12 pm »
Hi 11's
That's what drags are listing
You will need to check the length when you get them as they are listing a common part across a dozen different BSA /triumph models
The length is important as are the spacers ,
When all 3 nuts are fully tight check how evenly the pressure plate lifts when the clutch is pulled in
You can make fine adjustments by adding a suitable washer under the spring

John

Offline timsdad

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Re: C11G clutch and kickstart
« Reply #26 on: March 08, 2019, 07:04:24 am »
You still don't seem to have consulted your Instruction Book or the Service Sheets, 11s.

I've looked at the information on here and, if you go back to the Main Menu on this site, 5th section down, titled 'Service Sheets and Parts Lists', you click on that and on the next menu page it's 3rd one down titled 'Gearbox, Clutch and Primary Transmission'. Click on the top one, which is titled 'Clutch and Primary Transmission'.

4th one down on this next page - 'Clutch C10L, C11G, C12' takes you to 'BSA Service Sheet 411' and the final instruction  in this section clearly states -   .   .   'the retaining nuts should be tightened down firmly on to the distance pieces'.

I'm sure your book will say the same because they all come from BSA's original literature.


I'm starting to wonder if this is a wind-up!


Ray
Just a motorcyclist.

Offline elevensies

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Re: C11G clutch and kickstart
« Reply #27 on: March 08, 2019, 10:59:28 am »
Ray this is no wind up i assure you,
my service book does not say anything like that at all, i will take a picture and show you if you wish


sorry if my confusion/ lack of knowledge on this subject, i naturally assumed this is where people as those questions.

thank you for all your help guys, apreciated

Offline Brillandy

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Re: C11G clutch and kickstart
« Reply #28 on: March 08, 2019, 11:53:54 am »
Don't be put off asking questions 11's, we all have our grumpy moments from time to time.   ;)

Andy
56 C10L
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Offline donkey

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Re: C11G clutch and kickstart
« Reply #29 on: March 08, 2019, 12:12:11 pm »
Keep plodding on asking Qs we all have different levels of humour & mechanical/electrical knowledge we are all here to help and to be helped & to enjoy keeping the old clunkers alive well that's my view.
donkey
« Last Edit: March 08, 2019, 12:17:26 pm by donkey »