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Post by tzsteve on Mar 13, 2015 15:55:21 GMT
last years project was to get the scoot on the road with a reasonable speed for little cost. this years project is to convert it to having a reasonably quick engine. got one of these flywheel side this takes a 205 bearing the same as a lambretta with an ets crank. also got one of these M1 kits . the franz will need the two stud holes enlarging by a couple of mm and the exhaust port will need the outlet opening a couple of mm top and bottom to match the pipe. manifold is still in the welders getting slight mods to allow for better blending. the advantages of this half case are bigger, stronger bearing. the case is reinforced near the bearing seat also as the transfer is already BIG i can give both sides of the case to a welder and say copy this (even the dimmest of welders will know what i want. at the moment i have a second hand axle side of the engine soaking in scrap petrol/diesel/parafin to loosen the grime on the case. pics as and when they are worth posting
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Post by GeorgeS on Mar 13, 2015 16:17:22 GMT
Looks nice Steve, look forward to seeing the pictures. There's some M1L videos on youtube and they look very quick.
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Post by henri on Mar 13, 2015 16:19:07 GMT
nice kit n case there , loads of potential in that , but as a "dim welder" myself will just say that being alone in side a helmet allday n fumes an arc's can have a detrimental effect on 1's mental health an IQ , i find the surest cure is a cold beer , so if ya discuss your needs over a beer most welders can be reasonable if not helpful , tho 2 beers an they can mess up the job by accident , something about breathin argon with alcohol on board , H
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Post by tzsteve on Mar 13, 2015 16:32:21 GMT
apart from being an engineer i am also a qualified welder but have no acess to tig/tag
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Post by henri on Mar 13, 2015 17:21:35 GMT
SNAP, i win , an ive a fancy ac/dc tig under my bench so get a bonus-ball , but honestly it hasnt been out n used in years , loads easier to fire up the "electric pigeon shit machine" , mig, an just squeeze that trigger til its eyes pop out , told ya ,welding def affects ya mental health , H
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Post by tzsteve on Mar 13, 2015 17:24:04 GMT
your making me jealous
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Post by henri on Mar 13, 2015 22:09:22 GMT
my intent , but seriously, whats ya plans for the kit , which crank ya plannin on using , cut/un-cut, reed/rotary, etc etc , its your wallet an my dreams/hopes are 2 differing tings , but lookin forward to some fun , H
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Post by tzsteve on Mar 13, 2015 22:29:25 GMT
34mm amal. franz. Khepper CDI. mild tune/blend.
ets crank 200 Deg aprox i have a hunch there is a honda 104 rod from the early 90`s or a T5 rod i think they are 105 and have the same diameter big end pin.
keep it mild and consider more later rather than going all out and then trying to de-tune. its just a slight upgrade of what i already have
i really like the idea of a case that takes a decent bearing.
and hope that the magic pixies give me an ac tig set
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Post by Juan on Mar 13, 2015 23:50:43 GMT
Polini and Quattrini use a 102mm 'rod in some of their cranks, might be shorter than you're aiming for but it's another option to consider.
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Post by tzsteve on Mar 14, 2015 15:27:30 GMT
102 is a good size so i will check them out, the quality has got to be ok from both makers
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Post by tzsteve on Mar 17, 2015 19:46:34 GMT
still waiting for that b*s*ard welder to do my manifold. i f*c*ing hate shops that farm work out to some bloke they know. it`s a piss take. i dont think i`ll be using "elite engineering" of aintree again. 5&1/2 weeks now had a propper look at the flywheel side of the engine (Falk f/w side) today (pics tomorrow) mostly very well made but the opening for the barrel is a few mm under size looks like 56mm and widening to the correct 60mm at the bottom. its obviousley sand cast and this is what can happen, i reckon i can sort this when i get round to machining the gasket face after i have had the other side welded. the extra metal for the transfers can only be discribed as more than you need. i think generaly the falk f/w side is good value it`s thicker all round and has extra bracing for the crank bearing. though some fetling is required (typical scooter stuff) something i am looking at is fitting a triumph rotor and stator or something very similar but i need to get my hands on one and have a serious play with the bits, this is a triumph stator and rotor some bod is playing with. any hints or tips welcome gents as i am not an expert on this sort of stuff. it could all be pipedreams, but it is worth looking at. as standard it`s a 200w kit so even after making some mods for the electronic ignition it will still give about 120 w or more for lighting etc, and has the advantage of an internal rotor. it could also be fun asking the local dealer for an NU205 bearing for my ET3..
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Post by tzsteve on Mar 18, 2015 16:09:11 GMT
This is the bottom of the barrel alongside a standard barrel there is just so much potential for blending and a couple of pics of the falk f/w side. and the gasket face. the barrel kit recomends a vespatronic setup. one thing is certain you can not use a standard flywheel on this case without removing a lot of the transfer from the outside of the case. so definatley time to look at internal rotors.. much more to do and a few things to learn
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Post by henri on Mar 18, 2015 16:53:56 GMT
yep trimmy rotor/generator ,5 stud fixing , will check later when i can lay hands on spec sheets but memorys sayin t120 or t140 bonny 1 ,you can split the 2 feeds n run 6volt if ya kinky that way , are you thinkin of removin a coil an fixing a pick up instead or is there enough space to hang a gantry on the stator with a pick up an fix a trigger on the outboard end , as you could use the lumeiton (not sure on spelling) optical trigger then , or just a px pick up an a trigger magnet on rotor , theres also a bsa competition an later unit singles captive discharge system thats very similar , 12 volt only ,no battery required an coils are encapsulated in resin/plastic , its what femsa copied for the vespatronic system , 3 stud fixing an same sort of rotor , ran one on a competition b52 grasser chair outfit 30 years ago an there real good ,have a few addresses an specs n manuals for them an triumph systems ,will look em out an scan em up for ya if any use ,also got a car mag article on updating distributer to a vw golf electronic ignition ,might give ya a few ideas/tips , am sure i saw a article on doing same on a rare scooter but memory cant pin that one down yet , an careful of them transfers , you could lose a small dog down there , or a arm , very nice toys to play with , H
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Post by tzsteve on Mar 18, 2015 17:06:16 GMT
thanks H.
just seen a CB125 setup on fleabay and asked the seller for some sizes. definatly want to try and keep the vespa type pickyp as i know it works with the Khepper CDI (too good to discard). at this stage options are open and there is the stafford bike show in april, so i might get some ideas and a bargain there. next job is to get the axle side of the case welded. but at the moment funds are low having spent a fair amount on the case and kit. so progress could be slow fo a while
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Post by henri on Mar 19, 2015 8:30:26 GMT
stafford usually has a good auto jumble ,or did last time i was there , reason i mentioned bsa unit singles is there gennys will probably be loads cheaper than a trumpet part ,the honda cb an cg engines are based loosely on the triumph tiger cub engine/bsa unit singles ,that where designed by edward turner, who also did the triumph 5ta/6t/t100, which t120/140's are a development of, so rotor will be prob same design type , an the taper will be metric ,brit bikes it will be imperial diameters ,so easier to fit to ya crank, for even cheaper options theres loads of chinesey cg 125 copys around nowadays , ya local bike breakers might have a load in , or like me when i want a et2/et4 spare the local thiefs burn out spot has prob got a few carcasses to vulture on , an more modern 1's did away with points so should have a spot on stater for pick-up i'm guessing . H
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Post by tzsteve on Mar 19, 2015 15:38:59 GMT
picked up a CB125 kit for a few ££ so i`ll have a play with the bits when they arive. also got my manifold back from the welders, he nearly did a very good job. working on that over the weekend.
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Post by tzsteve on Mar 20, 2015 16:52:45 GMT
got the manifold back and as i said "he nearly did a very good job". a bit too wide a spread with the weld and not quite enough in other places, but it will do. the parkakit 34mm manifold as it arived has a few poor design and casting faults. then after the welding then dril the two stud holes and a little grinding and filing as we all know some fetling may be required. all this work will allow for better blending at a later date. originaly this manifold would have had the effect of limiting the intake efficiancy to that of a 26 or 28mm carb had a closer look at the barrel today, the barrel spiggot has two different sizes on the spiggot the 5mm closest to the gasket face is about 1.5mm too wide for the standard crankcase opening. at the moment i am still hoping to get a decent crank sorted with a slightly longer rod ( a DRT 105 rod would be nice if i could find a dealer who actualy had them in stock). if this works out the spiggot size will not be a problem otherwise more work will be required. i also had a mate translate the italian that came with the kit, the gasket goo they recomend for cylinder heads is loctite 510
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Post by henri on Mar 21, 2015 10:22:50 GMT
thats a pretty poor casting to start with , but with fettling youve made a "thing of beauty" , silk purse from sows ear kind of stuff , you still plannin on a 34mm amal for it , will it need a stepped rubber or is it a straight transition , H
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Post by tzsteve on Apr 1, 2015 15:13:45 GMT
still thinking of the amal but its not a straight fit on the manifold, i am considering making an iterferance fit sleave to fit over the end of the carb and giving it a bit of loctite, that way if it aint right i can go for a dellorto. i recently had a look at a dellorto and like the weight saving (as somone said an amal is a big lump on the end of a long manifold)
and yes i was very dissapointed with the quality of the parmakit manifold
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Post by tzsteve on Apr 1, 2015 15:15:36 GMT
anyone got a buggered ets crank that i could use to check some dimensions on the engine while i try to get the stator and rotor to fit?
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