Author Topic: Another noise question -A7SS  (Read 4810 times)

Online chaterlea25

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Re: Another noise question -A7SS
« Reply #30 on: 08.04. 2016 23:54 »
Hi,
A 1/4 in.  *eek* *eek* *eek* *eek*

Which type clutch is fitted ? 4 or 6 spring
If a four spring type, possibilities include the incorrect shaft adaptor from a single cylinder B series model
or worn /split adaptor on the 6 spring
Incorrect crank spacer or cush drive sleeve will also cause issues
I posted a topic on this some time ago
http://www.a7a10.net/forum/index.php?topic=9646.msg70166;topicseen#msg70166

HTH
John
1961 Super Rocket
1963 RGS (ongoing)

Offline RichardL

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Re: Another noise question -A7SS
« Reply #31 on: 09.04. 2016 01:22 »
John,

That is such an educational post. I read the whole thing when you posted it last year. Great stuff. Now I just need to remember it's there when it comes my turn to need it.

Richard L.

Edit: I had actually spelled "educational" wrong. That's dumberer than stupidester.

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Online Peter in Aus

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Re: Another noise question -A7SS
« Reply #32 on: 09.04. 2016 06:38 »
Thanks John I agree with Richard that is a very useful post as I am just coming up to do that job.

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Offline BSA500

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Re: Another noise question -A7SS
« Reply #33 on: 09.04. 2016 09:07 »
Hi,
A 1/4 in.  *eek* *eek* *eek* *eek*

Which type clutch is fitted ? 4 or 6 spring
If a four spring type, possibilities include the incorrect shaft adaptor from a single cylinder B series model
or worn /split adaptor on the 6 spring
Incorrect crank spacer or cush drive sleeve will also cause issues
I posted a topic on this some time ago
http://www.a7a10.net/forum/index.php?topic=9646.msg70166;topicseen#msg70166



HTH
John

John,
 Thanks for the reply. Since then I made a small discovery the crank spacer had been put on the wrong way round by some idiot(that will be me) and the right way round reduced the gap quite a lot. It clutch still fits a little forward. Its a four spring so I will trawl through your post on how the check the differences on the adaptor. If all the bits are correct where do I go from then??. Also I still have to sort out the pesky sideplay. I only wanted to ride it. All the years (26) I have owned this bike this is the most trouble I have ever had *sad2*

Online chaterlea25

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Re: Another noise question -A7SS
« Reply #34 on: 09.04. 2016 13:25 »
Hi,
Quote
the crank spacer had been put on the wrong way round by some idiot
  *sad2* *sad2*

That would mean that the bearing and shims were not "clamped" together

John
1961 Super Rocket
1963 RGS (ongoing)

Offline BSA500

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Re: Another noise question -A7SS
« Reply #35 on: 09.04. 2016 18:52 »
While stripping down checked the clutch alignment and its fine now after I put the spacer the right way round duh

Online morris

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Re: Another noise question -A7SS
« Reply #36 on: 09.04. 2016 21:28 »
That is such an educational post. I read the whole thing when you posted it last year. Great stuff. Now I just need to remember it's there when it comes my turn to need it.
A useful tip;
Create a folder in your browser's bookmark section and rename it "A7-A10 interesting posts" or something.
Bookmark the posts that you want to find again later and drag the bookmark into the folder you created. If you want you can rename them to something that makes more sense to you, or just leave the title as is.
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Online duTch

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Re: Another noise question -A7SS
« Reply #37 on: 09.04. 2016 22:57 »

 That's useful Morris, trouble is the folder would be almost as big as the forum *conf*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Online duTch

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Re: Another noise question -A7SS
« Reply #38 on: 09.04. 2016 23:28 »

Quote
Quote from: duTch on 08.04. 2016 15:19

    I get a bit of noise when I'm low on fuel *eek*

Wind?

  Nah- the (previously mentioned) engine harmonics amplified through the near empty metal 'box'  *conf*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline BSA500

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Re: Another noise question -A7SS
« Reply #39 on: 10.04. 2016 20:35 »
Right update....Got the engine out and split. As before no shim damage so I will order some extra shims and use the largest etc to reduce shim stack. Bearing locking compound failed so extra deep metal clean and try again. Other findings one engine rear mounting bolt stripped thread and other nut rounded so both to be replaced. Oil seal damaged on removal so replace as well. As a side question what can you use to remove excess wellseal from the engine casing??

Online Greybeard

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Re: Another noise question -A7SS
« Reply #40 on: 10.04. 2016 23:26 »
...what can you use to remove excess wellseal from the engine casing??
Warm it up then use wire wool dipped in metholated spirits or petrol.
Nail varnish remover, ( acetone) seems to be a good solvent although I haven't tried it.

Offline BSA500

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Re: Another noise question -A7SS
« Reply #41 on: 12.04. 2016 10:59 »

[/quote]
Warm it up then use wire wool dipped in metholated spirits or petrol.
Nail varnish remover, ( acetone) seems to be a good solvent although I haven't tried it.
[/quote]

Acetone worked a treat and free as where I work uses it. *smile*

Offline BSA500

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Re: Another noise question -A7SS
« Reply #42 on: 15.04. 2016 12:22 »
Starting to put her together now. As an aside Andrew at Priorymagneto's supplied the required bits quickly and at a good price. Started shimming and so far down to 3 thou but I want it perhaps 1.5 thou as you can still feel  movement at 3 and I don't like that. Also using the sleeve etc to push all the bearings/shims in to get a more accurate measure. This bit always takes ages not helped by a stripped crankcase stud(thanks again Andrew for sorting me one out).
 Back in the shed tonight
Andy

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Re: Another noise question -A7SS
« Reply #43 on: 20.04. 2016 12:38 »
Engine ready to be reunited with the frame. Just waiting for time and the reconditioned carb to be delivered


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Re: Another noise question -A7SS
« Reply #44 on: 06.05. 2016 20:00 »
Well she's back on the road. The 'noise' has gone to be replaced with the normal noises and vibrations. I think come winter I will look into a crank balance as she still vibrates quite alot.