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chaterlea25
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« Reply #20 on: 17.01. 2012 14:44 » |
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Hi Groily,
I had a quick peep at your website, neat idea!!
If you send me a PM I can forward Prof Falco's article to you
Cheers
John O R
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1961 Super Rocket 1963 RGS (ongoing)  |
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Triton Thrasher
Scotland
A-Clairvoyant
Karma: 8
Posts: 352
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« Reply #21 on: 17.01. 2012 18:58 » |
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Yes I was reluctant to go off magneto, but I have had two refurbished ( at he same place) both of them work adequately on my Flash but both are equally unreliable at starting the higher compression Rocket.
There must be thousands of Rockets out there that start just fine on Magneto, but mine wont (my mates won't either) and I blame the magneto rebuild, somehow it is good enough for a Flash but not anything higher compression, there is a good article in last months Real Classic by PUB re- magnetos which might have a bearing on this, to do with a/r units where by retarding the spark you actualy weaken it somewhat ( past max flux) you guys that are experts can explain this better than I can.
How did the Rocket start with a magneto, if you didn't retard the spark, or only retarded it a very little? |
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bsa- bill
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« Reply #22 on: 17.01. 2012 21:15 » |
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It is a flash brought up to Rocket spec, retard was via a/r unit.
it now starts every time first /second kick, the only difference is the Pazon ignition.
Contrary to the impression given by other forum members I am not anti magneto, far from it, I intend to get the magneto tested to find out what is up with it, I would love to have the bike refitted with the magneto provided it would be as reliable as it should be.
I know it is difficult at times to get the intended meaning in a mail, but it would help if some members were a little less apt to jump to unfounded conclusions
(yeh ok I do it myself at times)
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All the best - Bill  |
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GoldenFailure
Active
Karma: 0
Posts: 33
Wales
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« Reply #23 on: 19.01. 2012 13:35 » |
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Hello all. Yesterday I fitted my magneto body replacement for electronic ignition, and the aluminium solid timing pinion from Lyfords as suggested by BSA Bill, but the gear stands proud of the next pinion when fitted, so only half the depth of the teeth are engaging. Initially I thought it was the gear, but now I'm wondering if it might be the Mag body replacement tapered shaft protruding further into the timing side case than the mag shaft did. Has anyone had similar problems who could make a suggestion? My only ideas so far are make a triangular spacer to move the whole body backwards, but then the locating flange will be lost making for imprecise gear meshing or to just ignore it, as its only spinning a metal wheel for the electronic ignition, not a heavier mag armature, and therefore needs less tooth contact?
All thoughts appreciated.
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1955 Plunger Golden Flash (doesn't work)
1967-2005 Enfield Bullet bitsa (evil)
Absence of common sense or car to go with it.
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bsa- bill
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« Reply #24 on: 19.01. 2012 19:13 » |
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Should look like this Goldenfailure, ends up about flush with the outside of the cam pinion.
Take no notice of the two holes in the pinion as these I added to make removal easier, although as you will have noticed there is an internal thread in the pinion to take a stud for removal. (it's metric)
Do you have the pinion on the right way around I wonder ?
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All the best - Bill |
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muskrat
Forum Oracle
Karma: 25
Posts: 1885
Lake Conjola NSW Oz
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« Reply #25 on: 19.01. 2012 20:13 » |
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G'day GF,
both of mine sit proud, both been on for quite a few years with no probs.
Cheers
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Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65.  |
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alanp
Plymouth, Devon
A-Clairvoyant
Karma: 6
Posts: 403
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« Reply #26 on: 19.01. 2012 20:47 » |
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Leave it. I've done over 1000 miles of mixed (!) riding with mine like yours and I checked it a week or so back and there wasn't any discernable wear to be seen. I recall it's on a taper and whenever tapers are involved things will be a bit variable in location since small'ish dimensional errors make large differences axially. It's kinda what you expect these days.
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Member of the 'Last of the Summer Wine Club - Jennycliff'. |
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GoldenFailure
Active
Karma: 0
Posts: 33
Wales
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« Reply #27 on: 20.01. 2012 00:15 » |
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Hi BSA Bill, yep, on the right way round (should I be insulted?!  ) Interesting that yours fit correctly and Muskrats and alanps dont. Yes, I guessed the two extra holes were your idea for easier extraction, I was tempted to do that myself after seeing your picture, but laziness got the better of me! Thanks Muskrat and alanp for putting my mind at ease, I wasn't relishing yet another technical problem! Cheers |
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1955 Plunger Golden Flash (doesn't work)
1967-2005 Enfield Bullet bitsa (evil)
Absence of common sense or car to go with it.
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muskrat
Forum Oracle
Karma: 25
Posts: 1885
Lake Conjola NSW Oz
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« Reply #28 on: 20.01. 2012 10:15 » |
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Got home from work early so thought I'd start up a few bikes. 4 out of 4 started first kick. 3 BSA's with Boyer and the XT with points. Life's good.
Cheers
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Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65. |
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bsa- bill
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« Reply #29 on: 20.01. 2012 10:36 » |
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(should I be insulted?! Cheesy ) Yes I did think it was a bit silly when I mailed it, just I had to have a couple of looks at mine when it arrived  . Mine was quite a tight mesh with the cam pinion. also found the long magneto fixing nut was too thick to work so fiddled with an ordinary nut to get it on, slimming down the long nut definitely a job for another day. added a couple of photos that might help |
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All the best - Bill |
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