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belt not comming to the top of primary

charlie

Pro
Joined
Aug 30, 2010
Messages
182
Location
brantford ontario
i have been fight with the clutching this year and i have marked my primay and i need to get my belt higher can i shim my spider or is it not at easy it is running about 5/8 to 1/2 from the top i am thinking it should be on the shorther side of 3/8 o ya its a 2010 apex with a ulmar kit in it
 

You must have other issues.. if all is good the belt should ride to within about 3/16-1/4" before the sheaves lock up. With 5/8-1/2" from the edge you've got weight/power/spring/gearing or whatever problems.
 
Run it on ice for at least a half mile WFO then recheck the marks on your primary. That will be when it wants to be at the top of the primary. Not very often. Should see only about 1/8" to 3/16" of mark left on an all out top speed run.
 
What rpm on top? What secondary spring? What spring setting? What gearing?
 
my ulmer kit works perfectly and allan is pretty darn close to perfect when you get it.
if your not shifting out all the way it usually something slightly off during install, my stage 2 kit came with two springs did you use them? my ulmer supplied helix secondary wrap was 6-3 (factory was 3-3) also check for belt width spec, if all that checks out, i would pull the primary clutch cover and manually check the primary for free movement, while your there make sure none of the tips broke and all washers are accounted for
 
Nope install is all good I don't think it has anything to do with the kit factory clutch did the same thing belt is good and everything moves well it a comin problem I have been told to get my belt higher I have to machine the wedges with would be the same as shimming the spider on a cat or Polaris just don't no if this is a 100% true or how I get this done
 
I changed the gearing in my 2011 Apex, dropped 1 tooth on top, went up 1 tooth on the bottom. The belt now stops about 1/4 of an inch from the top of the primary. Pulls like a freight train now. My brothers 800 E tech, See Ya. 108 on the "dream meter".
 


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