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-   -   Ofna clutch help............. (https://www.rctech.net/forum/nitro-off-road/226316-ofna-clutch-help.html)

Taylorm 06-10-2008 08:52 PM

Ofna clutch help.............
 
Guys, I have an older Team Associated RC250 and i bought an O.S. .21 VG to run in it. I also bought an Ofna flywheel and these http://www3.towerhobbies.com/cgi-bin...&I=LXHWJ3&P=SM clutch shoes as well as an Ofna clutch bell. Where do the little washers go?... Do you put one on the flywheel pin, under the shoe and one on top of the shoe? (under the bell)???..........Also, the cluth bell/bearing sticks out a bit longer than the SG shaft.....how do i place the flanged spacers to get a little clearance so the bell can float slightly??...........I run Serpent 1/8 with Centax clutches but can't figure these off-road clutches out?........:weird:

imaxx21 06-10-2008 09:10 PM

just one under each shoe...

shaft should be sticking out that much, if at all...

are you positive everything is installed correctly?

jamminnay 06-11-2008 12:24 PM

def one under the shoe and thats it.. take a pic so we can help out more..

stiffler297 06-11-2008 03:25 PM

Also, look at the washers very carefully. One side has a slight bevel to it. Make sure that side goes up against the shoe. This allows the shoe to move more freely. And, if you don't put the washers on, you'll have a very difficult time trying to get those off. They will groove the flywheel pretty good.

Taylorm 06-11-2008 08:15 PM

Guys, how are the chrome spacers and washers used. Can't figure out how to get bell set with just a little lash........... http://i227.photobucket.com/albums/d...g?t=1213240295 http://i227.photobucket.com/albums/d...g?t=1213240469 bearing is just barely sticking out past end of crankshaft........

C Verano 06-11-2008 08:25 PM


Originally Posted by Taylorm (Post 4531098)
Guys, how are the chrome spacers and washers used. Can't figure out how to get bell set with just a little lash........... http://i227.photobucket.com/albums/d...g?t=1213240295 http://i227.photobucket.com/albums/d...g?t=1213240469 bearing is just barely sticking out past end of crankshaft........


You have the clutch correct. Put the screw through the silver pieces with the flange on them. The shorter one should be long enough to make up the space on the shaft. If the bell has to much play use the shims to take some out.

Taylorm 06-11-2008 08:31 PM


Originally Posted by C Verano (Post 4531133)
You have the clutch correct. Put the screw through the silver pieces with the flange on them. The shorter one should be long enough to make up the space on the shaft. If the bell has to much play use the shims to take some out.

........tried that...using the short chrome spacer with ALL the washers provided.....i still have to much end play with the bell..............guess i need more washers...........

stiffler297 06-11-2008 09:02 PM

You don't need to use all the shims that come in the kit. If you do, something just isn't right. You should only need maybe one behind the back bearing possibly two. Any more than that is no bueno!

Brandon.M 06-12-2008 12:53 PM

the reason that the crank isnt coming out far enough is because you need the right flywheel collet for your flywheel. hope this helps. Brandon.M

stiffler297 06-12-2008 04:24 PM


Originally Posted by Brandon.M (Post 4533120)
the reason that the crank isnt coming out far enough is because you need the right flywheel collet for your flywheel. hope this helps. Brandon.M

Dang, beat me to that one. You should have a copper THIN collet for that flywheel. That will bring the shaft out further so you won't need as many shims.

Taylorm 06-12-2008 08:15 PM


Originally Posted by Brandon.M (Post 4533120)
the reason that the crank isnt coming out far enough is because you need the right flywheel collet for your flywheel. hope this helps. Brandon.M

....so this Ofna collet http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBN08 is not the right one for this http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBZS8 flywheel????? I think the OS VG might have a shorter snout than some of the other .21's............got it solved tonight.............added one extra thick washer........


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