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Post by Juan on May 10, 2007 17:30:45 GMT
XL 50=20mm cone,XL100/125=24mm cone.
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ozzy
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Post by ozzy on May 10, 2007 21:51:42 GMT
ooo err i awate the posty with trepidation
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ozzy
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Post by ozzy on May 10, 2007 21:55:23 GMT
juan wrote can you tell us more about the pm trickery??
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Post by smallyshane on May 11, 2007 9:31:01 GMT
Well I may still be interested if its the wrong one ozzy.... Just been reading a bit of paper that came with the mazz crank I have in mine, and in a roundabout way I think it is saying that if you use it in a vespa, they recomend that you do not modify the flywheel, but if your using it on a ciao( ?) then you should use a nylon flywheel!! any opinions on this???
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Post by Juan on May 11, 2007 16:54:22 GMT
juan wrote can you tell us more about the pm trickery?? I can't.It just something Oz was telling me about when he went to PM to have his P TS1 E dynoed,I'll ask him more tomorrow if I remember.
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ozzy
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Post by ozzy on May 11, 2007 17:42:14 GMT
shane, no prob's i'll let you know when i get it
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ozzy
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Post by ozzy on May 14, 2007 8:49:01 GMT
juan, where do you measure the cone from?? is it 24mm on the crankshaft or 24mm on the inside of the flywheel boss?? cheers, ozzy
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Post by smallyshane on May 14, 2007 10:18:22 GMT
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ozzy
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Post by ozzy on May 14, 2007 12:20:00 GMT
cheers shane, i got the flywheel this morning and i think its a large cone sorry.... the inside of the large end of the cone section measures 20mm, on those pics on the link it looks like the flywheel doesn't sit all the way up the taper of the crank, so i reckon mine is a large one I guess i'll know for sure when i have a crank to stick it on.. ozzy
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Post by smallyshane on May 14, 2007 12:28:42 GMT
Ok mate, I wouldn't have a clue so will wait till you have a crank to try it on before pestering you for it.....
but good luck anyway, hope it was in good nick
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ozzy
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Post by ozzy on May 16, 2007 22:48:41 GMT
this flywheel is definately large cone... now i'm confused; i was under the impression that pk flywheels were large cone and that only two cone sizes existed.. large and small... then this thread confused me because people have said no, there's 25mm/24mm and 19/20 and 20/20.... i was under the impression that these figures refered to the size of bearing and oil seal, not the cone size??? the 19/20 has a small cone and the others have a large cone?? therefore interchangable flywheels.. with each other and the p range vespas... the link shane put up seems to confirm what i'm saying; www.scooterhelp.com/tips/parts/sf.cranks.htmlcan someone confirm this or correct me because i need to order a crank that suits this flywheel ozzy
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Post by tony on May 16, 2007 23:23:40 GMT
hi mate, there are two tapers- large and small.
smallframes up to et3 ,50 special etc had the small taper. This uses the 19mm seal (geniune one is black)
pk's had the small taper also-so..a pk50 flywheel will fit the et3 taper. Both use the same size bearing however(nu204etn)
the XL pk had the larger taper using the 20mm seal. The flywheel of this will not fit the et3 but is the same taper as the P range.
The ETS has the same taper as XL but uses a different bearing. I have never seen a "PK" (not xl) with a large taper from the factory. hope this helps.
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Post by hank on May 17, 2007 9:46:00 GMT
The PKXL125 & P(K)125ETS both have 24mm flywheel-side oil seals. The bit about not seeing a large taper "non XL" PK - do you mean you just have not seen one or not sure if they exist My ETS has a large taper, 2 piece flywheel side bearing and of course the 24mm oil seal.
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ozzy
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Post by ozzy on May 17, 2007 14:27:16 GMT
the reason i'm scratching my head over this one is that i have a pk flywheel (which i'll be lightening), a lovely new M1L kit on its way, and 32mm koso carb and manifold... i need a full circle crank thats compatible with my pk (large cone) flywheel??? the cases i'm using are from a pk50.. any advice or pointers or links??
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Post by tony on May 17, 2007 17:24:06 GMT
if your crank is mazzucelli then this is the large taper(xl and ets). so you'll be fine.
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ozzy
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Post by ozzy on May 17, 2007 19:06:59 GMT
i don't have a crank well i have an old pk50 crank... i need a full circle one thats gonna have a large cone, i can't find a 24mm fullcirlce anywhere?? are the 125 20/20 fullcircles (worb5/ sip)large cone? if so i can use one of them ozzy
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Post by barneystgeorge on May 17, 2007 20:47:42 GMT
20/20 fullcircle is what u need+converson bearing worb or sip or go longstroke 4 mental engine ;D i think 24 only fit ets/xl125
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ozzy
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Post by ozzy on May 17, 2007 20:54:09 GMT
cheers barney ;D
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Post by tony on May 17, 2007 23:19:22 GMT
ozzy, mazzucelli full circle is "20/20", bearing is nu204etn-its a split type. It fits the hp4 flywheel or PKXL flywheel. The ETS crank or "24/20" as it seems to be known on here is the same cone size mate and will fit the same flywheel but this uses a different bearing in original ETS cases and a conversion bearing is available for it to fit other smallframe cases if you want to use it. I dont think this ETS type crank is necessary even in a fulll race motor... However the mazz 20/20 full circle is the only full circle crank i know and its great-i use em.
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ozzy
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Post by ozzy on May 18, 2007 10:23:01 GMT
thankyou thats exactly the information i've been looking for i've now ordered my new crank ;D i went for a crank that terry ward's flogging, purely because he was already sending me my new M1L ;D ;D ;D ;D and it wouldn't cost me anymore on postage... aparantly its the same crank used in the m1 sprinter, should be ok, and wasn't anymore bucks than a maz... thanks again tony
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