Whine

[docspine]

I know its probably not a motor problem cause thats not what it sounds like, but can anyone tell me if the belt on my dyna could be whining do to dirt/crap build up. I just got the rear tire changed, rear bearings repacked and everything appears to be ok, but at about 50mph the left side starts whining and it sound like the belt. I watched the tech inspect the belt so can anyone give me possibilities as to what this noise is . Thanks and sorry if it pisses anyone off cause I dont think its an "EVO" question.

[hoglar]

When ever it rains and I pick up some dirt, the belt will squeak after drying out. A good rain or washing usually gets rid of it. It's a defiite squeak though, not a whine.

[rlpos]

you may also check tension. Years ago when I used to have them do it at a stealership it would always be to tight causing the whine

[docspine]

If I hadnt watched him do it I would say it sounds like the bearings in the rear had no grease.Not really a squeak. The tension is w/in spec too so I am kinduv lost. Thanks for your ideas though.

[GenesFXRP]

My drive belt was whining, sounded like gears.

Last week out in S.Dakota , the people we went out there with said they could hear a squeaking from my bike when we were riding. Two days later my belt snapped. The bonding between the teeth and the belt had dry rotted and a tooth broke off.

The belt appeared to look ok, back in April.

[docspine]

I'll check, but they had that rear off like 1 week before it started and they checked it out. I appreciate all the ideas cause I havent the foggiest.. Havent had time to ride in a while, so I havent got anything done to it yet, but i'll take a good look at those teeth. Thanks Kevin

[Fourcats]

Is the bike...the color of cheese?

[GenesFXRP]

Originally Posted by Fourcats

Is the bike...the color of cheese?

[Otto]

also make sure the rear pulley has not worn through the hard coating if its the stock pulley dirt will make it whine my. the belt on my fxr gets louder than the t header when its loaded up from dusty roads.

[NCC1]

Look at your rear sprocket for a ding or a piece missing on the outer edge.
This edge controls where the belt runs going forward.

Sometimes the belt will rub on the tire, especially if you went one tire size larger. Is your tire getting shiney on the belt side?

To cut down on the noise some aftermarket belts have a groove in the teeth to allow air to escape.

The lower belt guard can also rub on your belt.

What was your hub bearing end play?
That should have been checked when the bearings were greased.

[docspine]

Thaks you guys, No ding or chinck out of pulley. No shiny tire. And the bike is blue. While I was checking all you suggestions I did notice that everything seemed perfect under there. I got the bike like 2 months ago and it was spotless. The guy must have spit shined only cause that belt turned my fingers blacke that doing a brake job on an old chevy pickup. Im going to get the hose after it and some simple green and I bet it will quit right down. Thanks again to everyone I appreciate it. Kevin

[84FXRP]

Have you checked the alignment of the rear axle in the swingarm?

[docspine]

Alignment looks pretty dead on.

[84FXRP]

I notice from your profile that you have a 1998. Unless the wheels have been modified, they use tapered (vs sealed) bearings.

There is an adjustment procedure for play on these bearings. Play is adjusted by a shim pack. It is possible that the shims were left out or the thickness of shims is incorrect.

The way to check this play is with a dial indicator. There is a procedure in the Harley-Davidson service manual. Be sure to use the correct manual for your year and type bike.

If the bearings don't have the correct end play, I would replace the bearings (and races).


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Note: please excuse if this is a duplicate post.

[docspine]

would this adjustment be off after ten thousand miles. The tech told me that the bearings still had green greese in them when he took them out and I watched him pack them and put them back in but I didnt see any type of measurment being done. I'll check.