Author Topic: How smooth should an A7SS be?  (Read 2827 times)

Offline taroha10

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Re: How smooth should an A7SS be?
« Reply #15 on: 05.06. 2011 11:48 »
Hi Tukig,
It has probably been said by countless of people on the forum before, but do check the head steady bolts.I have been amazed in the past how much difference loose ones can make.Good luck with it all.
Mark.

Offline steve c

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Re: How smooth should an A7SS be?
« Reply #16 on: 06.06. 2011 15:20 »
the last time my bsa run this time last year  , I had encountered Richter scale vibration, primary case bolts were dropping out, I was loosening my fillings and getting vibration white finger and feet. This did not reduce my wifes enthusiasm for the beast

I completely lost interest and threw it in the shed and played with my lambretta 1962 tv200 replica instead, even though I wasn't happy with that either , crap paint job by a professional ??? ( my neighbours best mate and brothers pal so could not complain much without falling out with some of them), I usually do them my self, he missed areas, sides,  dinks and used a very camp purple rather than the one I specified and the engine wouldn't run well ( I built that) so ended up selling it and buying another real one in very rough original condition which i have just rebuilt along with two other engines from bits for other lambretta projects.
I am just about to put both old death traps on the road one tatty mod style 1963 tv 200 and my rocker style 1960 super rocket engined a7, I can perhaps pop down to brighton and beat my self up. however the vibration on both of them did a pretty good job, bsa won in this regard.

Back to the BSA

Very tight primary chain can cause bad vibration?????? one poster states

The teeth on gear box adjuster kept slipping previously allowing the chain to tighten I bet its that, I feel a replacement parts purchase coming on.

Steve

Offline Tukig

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Re: How smooth should an A7SS be?
« Reply #17 on: 16.06. 2011 19:24 »
To conclude, and to thank everyone. I have just got my mag back from Paul at APL (excellent service, reasonable price and returned within his quoted timescale, can't do better than that). It is now fitted and having just been for a run out (which of course caused it to start raining profusely) I am pleased to report that I can now sit comfortably at 60mph and the bike has more go.

According to Paul the mag was a bit ropey. There was quite a difference between each cylinder timing, the slip ring was replaced and one bearing was shot. The cam ring was ok.

I checked all the other areas on the bike as suggested by one and all. They all seemed in order but it just goes to show how many things go towards making the bike a pleasure to ride.

Offline fido

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Re: How smooth should an A7SS be?
« Reply #18 on: 16.06. 2011 20:23 »
Did you go down the A98 to Fochabers? I saw what looked like a green BSA go past my house when I was outside gardening.

Offline Tukig

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Re: How smooth should an A7SS be?
« Reply #19 on: 16.06. 2011 23:07 »
 Yes that was me. What a staggeringly small world! You should waved me down and offered me tea.

Offline A10Boy

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Re: How smooth should an A7SS be?
« Reply #20 on: 17.06. 2011 11:34 »
Quote
I was outside gardening.

 *eek*
Regards

Andy

1958 Super Rocket
Plus
1974 Kawasaki Z1a
Yam XJR 1300

Offline MG

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Re: How smooth should an A7SS be?
« Reply #21 on: 17.06. 2011 12:06 »
 *smile*
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Online muskrat

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Re: How smooth should an A7SS be?
« Reply #22 on: 17.06. 2011 14:02 »
MG, have you got a pic of Bill doing the sides ? LOL
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Online bsa-bill

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Re: How smooth should an A7SS be?
« Reply #23 on: 17.06. 2011 14:51 »
This is brilliant, we have a guy who retired about five years ago as head forester, he was given a part time job cutting grass around the various locations of the estate.
Well he is an empire builder every year the acres of grass he cuts increases, what would be a case of cutting around road ends expands to several hundred yards down each side of the road in both directions, the boss did not know he owned as much land until A*** started  cutting the grass on it.
I'll print this out and take it over next week when I'm doing a bit of work for them and get it pined up on the workshop wall with the title "Do we know this guy"
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline MG

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Re: How smooth should an A7SS be?
« Reply #24 on: 17.06. 2011 16:38 »
Quote
MG, have you got a pic of Bill doing the sides ? LOL

Certainly, there you go:
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Offline wilko

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Re: How smooth should an A7SS be?
« Reply #25 on: 17.06. 2011 19:21 »
Ahhhh, the good ol' days before health and safety!!

Offline fido

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Re: How smooth should an A7SS be?
« Reply #26 on: 20.06. 2011 10:25 »

Das macht Spaß.   *smile*