Angelo, Welcome to Trike Talk.........I can't help you but i'm sure someone will chime in soon with the help you need...
Hello. I have a dna conversion on my 1996 hd sportster. I put a new drive belt on my 70 spline pulley.
It now has a whining noise when i ride the bike. The tension has the correct play & i have greased the fittings on the axle. Plenty of grease when i disassembled the rear end before putting on the new belt. I have used both 1 1/8" & presently 1 1/2" belts. Any ideas as what it may be? It is a good rear end.
Any particular way of aligning the new belt? Hope i am posting in the correct place. Thanks for your
help.
Angelo
Angelo, Welcome to Trike Talk.........I can't help you but i'm sure someone will chime in soon with the help you need...
Sometimes a Cigar is Just a Cigar.....
2019 Tri-Glide.......
You may want to post this question in the Harley conversions subforum a lot more traffic there ya kno... Possibly tires check tread design or possibly drive belt needs aligned, it may not be set up properly not pointing fingers just saying... Good luck finding issue please keep us posted. Fred
Vintage 09' Vivid Black, Boyesen X force intake, DK Customs DIY external breather, PV tuner, Mighty Mite love Jugs,Titanium Wrapped Header pipe, Khrome Werks 2+2 Wide Sweepers, DK 2" tank lift deluxe, Air Deflectors, Rear Bumper, Fender Chrome trim, Kuri. Rear lights, 9" LRS recurve flat top wind screen, LED headlight and spots, Hubcaps rear wheels
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Almost always a noise after a belt replacement can be traced back to the adjustment of the belt
Did you rotate the wheels in gear to find the tight spot of the belt? Have another go at it and do check back in
Nuff Said," Were Burnin Daylight, Lets Ride"(Sober 37 years)
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Not being able to hear the noise, but based of what you are describing, the whining your are hearing is most likely the belt being forced against one side of the pulley due to not being properly aligned. You can rotate it by hand to get it close, but it can wander when torque is applied.
You or preferably someone with mechanical knowledge will need to CAREFULLY jack up the rear of the trike and secure it on jack stands and run it at an idle in 1st gear and see which side the belt is rubbing against. Adjust the alignment bolts on either side until the belt is running centered in the pulley, and be aware of keeping the proper tension.
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A quick and cheap way to determine if belt alignment is your issue, is to pick up a can of CRC Belt Dressing at any auto parts store, liberally spray the edges of the belt/pulley while rotating it, then take it for a spin. If the sound temporarily goes away, the problem is alignment.
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I also just noticed that you said you have tried both a 1 1/8" belt and are currently running a 1 1/2" belt. The DNA kit for your make and model Sportster calls for the stock 1 1/8" belt. That is what I would run as it will give you more clearance and would be easier to align.
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Visit Cut-N-Shoot Customs Website
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Email: info@cutnshootcustoms.com[/B]
Not that this should make a difference but the 2003 and earlier Sportsters had a 65 tooth rear sprocket with that 1 1/2" belt.
Running a 70 tooth instead of a 65 tooth sprocket really hurts highway speed.
I take it that the belt is not rubbing against anything under the front cover and the pulley is tight ??
A bar of soap will also do the trick.
Jim Murphy
EX-Lehman & Champion Dealer Owner Operator
Iron Butt Rider 2001
WHEN HELP IS OFFERED, A SIMPLE "THANK YOU" IS APPRECIATED.
Thanks to everyone for their insights on this problem. I appreciate all your suggestions. I also believe alignment is the main issue. I will go back & start my realignment process.
Thanks again to everyone.
Angelo