BDL open belt drive

Energy One
Deric

Deric

Member
I got a few questions on open belt drive. I have a left side drive and My belt keeps going to the left. I have tried to align it many times by loosening the transmission bolts and settings everything up straight but still moves over. so my question is if I use shims to move the pulley over how much crank shaft splines need to be in the pulley? I only have about a 1/2 inch showing after shimming it
 
HMAN

HMAN

I just like my Freedom
Is the rear wheel and pully out of alignment? Bad swingarm bushing? Shim on the rear pully pushing it farther out? What yr n model Dog? When doing adjustments did you roll the wheel forwards AND backwards to ck alignment?
 
Deric

Deric

Member
HMAN said:
Is the rear wheel and pully out of alignment? Bad swingarm bushing? Shim on the rear pully pushing it farther out? What yr n model Dog? When doing adjustments did you roll the wheel forwards AND backwards to ck alignment?
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It is not a big dog chopper it is a BMC big mikes chopper 2005 BMC.
 
Mickmorris

Mickmorris

Well Known Member
Supporting Member
Deric said:
I got a few questions on open belt drive. I have a left side drive and My belt keeps going to the left. I have tried to align it many times by loosening the transmission bolts and settings everything up straight but still moves over. so my question is if I use shims to move the pulley over how much crank shaft splines need to be in the pulley? I only have about a 1/2 inch showing after shimming it
Click to expand...
Man I don’t think that’s good. Those parts are under high torque. Can you post a picture of the entire left side? With maybe a few close up shots of the transmission & engine alignment?
 
Deric

Deric

Member
Mickmorris said:
Man I don’t think that’s good. Those parts are under high torque. Can you post a picture of the entire left side? With maybe a few close up shots of the transmission & engine alignment?
Click to expand...
 

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Mickmorris

Mickmorris

Well Known Member
Supporting Member
Ok so are you having a problem with the main shaft drive belt or the belt on your open primary? If your alignment on your open primary is off you need to contact Scott @ beltdrives.com. BDL website. Use the contact link to send him a message and include your pics. Do not put that back together with those shim’s until you get with him.
 
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Mickmorris

Mickmorris

Well Known Member
Supporting Member
What is damaging your sidewall on the rear tire? Can you pull the covers on your rear axle & adjustment bolts and take a picture of both.
 
Mickmorris

Mickmorris

Well Known Member
Supporting Member
HMAN said:
Is the rear wheel and pully out of alignment? Bad swingarm bushing? Shim on the rear pully pushing it farther out? What yr n model Dog? When doing adjustments did you roll the wheel forwards AND backwards to ck alignment?
Click to expand...
By the look of his rear tire I would say he’s got some problems. BMC? That’s a new one on me.
 
Deric

Deric

Member
Mickmorris said:
Ok so are you having a problem with the main shaft drive belt or the belt on your open primary? If your alignment on your open primary is off you need to contact Scott @ beltdrives.com. BDL website. Use the contact link to send him a message and include your pics. Do not put that back together with those shim’s until you get with him.
Click to expand...
Open primary belt
 
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