The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => Gearbox, Clutch, Primary => Topic started by: berger on 27.09. 2018 23:15
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can't remember if I've seen it on here or elsewhere, whichever I can't find it *dunno* so what is the reason for the flat teeth on some quadrants and pointy ones on others. I found some with pointy and flat whilst ratting about but all my ratchet teeth are pointy, I am sure some of you wise ones will know.{ please don't say wear or I will be forced to go to the PUB *countdown*} I am *conf2*
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Dunno where you looked, but am also sure it's here somewhere, and I may be wrong, but I think the wares with pointies are early ones and the wares with flats are later.... *dunno*
See- I did good hey *smile*
.... please don't say wear or I will be forced to go to the PUB.....
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And if I remember right, dont mix them together because they dont get along.
Lee
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*shh* *bash* *sarcastic* *help* dutch were I to be a spellist I wood get things rite *roll* , so is their a flat topt ratchet that currysponds with the flat topt cwadrent ??? coater87 you luck to ceriuss in yor kluch kasseing *whistle*
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ime gunna gess its the other way rownd dutch flat earli and pointing laty *conf* *eek* ;)
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Berger,
Goe hear: luhk at thuh stu55flash poast. They'res prahblie two mutch of mee in thuh thred, butt itz uh gud goink opher uv thuh phlattop teef.
https://www.a7a10.net/forum/index.php?topic=3220.msg22055#msg22055
Ritcherd el
Whew! That was exhausting.
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regreb- et this our, ayed saye ewe bin ette tha pub.... *smile*
Two bee honest eye think eye've a mickstyure that seems two werk, but forget witch whey *dunno*.... mybay th pic will icksplane
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Please stop!
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I think the change came with the adoption of a one piece quadrant/shaft and different ratchet pinion in 1955.
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Yeahbut- Julian, I'm aware I may be somewhat dyslexic, but unless we have a box apart to look at, that chart doesn't much explain which came first...chicken or egg/pointy or flat...?. *conf2* *dunno*
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The one piece item with pointed teeth in photo. No splines.
Dont know the difference in the pinions
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I am going to the pub *countdown*, there is also a two piece variation with pointy teeth, I found an assortment in a box but could not find a flat tooth ratchet to match the flat tooth quadrants only pointy this is what confused me *sad*. I am happy now that the flat tooth must match with the flat tooth ratchet pinion as in the photo *thanks* *good3* greybeard sorry about that was it doing your head in *bash* oooops looks like all the ratchet pinions are the SAME part number
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dont mix them together because they dont get along.
don't get along to the point that they jam, (now how would I know that ;))
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Which ever you fit they should be pointy teeth quadrant to pointy teeth pawl, or flat teeth quadrant to flat teeth pawl. Job sorted.
ELLIS
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When opening my gearbox on a 1955 Golden Flash plunger my quadrant and pinion is of same model as in duTch picture.
(quadrant flat tooth and pinion pointy tooth)
Been told that the flat type quadrant was used on plunger and pointy ones on swing arm.
Got a new pointy tooth pinion (67-3168) and will see tomorrow if it works.
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The pinion in my gearbox was worn out so the kick jammed many times when I tried to start it so I decided to get new parts.
The combination of quadrant and pinion was a "pain in the ass" for me. Bought a set from Draganfly but they didn't have the pinion (67-3376) so I bought one from another company and guess what they jammed. Didn't work together.
After lot of research I was told by SRM Classic Bike that the pinion I needed to my flat tooth quadrant is 67-3168 with pointy tooth's. Found a new one on the net, today I changed both pinion and ratchet and now it works VERY fine. Have tried to start the bike a couple of times and the kick works MUCH better than before and no signs to jam.
Now I have a new quadrant (think it is 67-3375) and a pinion (67-3376) that doesn't work together laying on the shelf.