OzVMX Forum
Clubroom => Tech Talk => Topic started by: Colin Jay on December 30, 2009, 06:41:54 pm
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I have recently measured up and produced a basic drawing of the dimensions of a Yamaha Crankcase splitter for another forum that I frequent, and though that there would probably be a few people here who would be interested.
I have had the genuine item since I worked as a mechanic back in the 1980’s and I know it fits all the late 70’s and early 80’s 2 and 4 stroke engines with vertical split crankcases. i suspect that it probably suits all the Yamaha engines from the 1960’s all the way through to the latest models.
(http://i150.photobucket.com/albums/s120/coljay/CrankcaseSplitter2.jpg)
And a picture of the real thing so you have an idea of what the drawing is about.
(http://i150.photobucket.com/albums/s120/coljay/PC260048.jpg)
The "bar" on the real splitter is made from forged steel, so I would recommend that the bar on any copy be made from 20mm mild steel as a minimum, or possibly even 25mm.
The two different length bolts, which are high tensile, come with the splitter as the different lengths are required for different engines.
CJ
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good stuff, i reckon this would fit most jap singles
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hanks make a splitter like the one shown in the pic 4 the the SR XT TT5OO i got one , hes in qld 0740547144 8)
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I got a Fragram (or something like that) brand of a splitter for about $40-50 from Tool Specialists. Thanks for posting the drawing looks a cinch to make.
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I made one these a couple of years ago out of 25mm tool steel (stronger than mild steel) I had trouble finding M8 bolts long enough and found that M8 high tensile all thread bar worked spot on. I used M16 all thread for the center bolt. I used it once and I lent to a mate who now, cant find it amongst the crap in his workshop. >:(............Lesson learnt.
Evo
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Stanly still make great crank-case splitters..... :D
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my father has a thing just like that which he aquired years ago when he worked at a suzuki dealer. they are pretty universal, i have used it on my z50, sl125, and ke175. its a great tool to have
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When I visited Le Canari in France, I found he had a handy little collection of tools...
(http://v6pyuw.bay.livefilestore.com/y1pJXIc4zXx3ywPbAyanSIABgP5JStueZtT2la6ARy87WcOZdM69qbt5Tdjn7LWK6ZiJj-sIA8RqyQjCXwPhqHFao50_Xz9chOt/Fabrice%20tools.jpg)
number 1 : crankcase separating tool for 175 ,250,400
number 2 : for exhaust spring ( and for luke it is perfect for third spring :-))
number 3: for flywheel
number 4 : for front fork
number 5 : for the clutch pe 250 400
number 6: for the clutch pe 175
number 7 : for separating bearing in the crankcase
number 8 : conrod stopper pe 250 400
number 9 : for removed the bearing lower of front fork
number 10 : for separating the number 54632-11020 on the front hub , it is the part for speedo , sorry I don t know in English
number 11 : conrod stopper pe 175