Vibration through handlebars fixed , on 08 DYNA
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Joined: Jan 2008
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Vibration through handlebars fixed , on 08 DYNA
If you loosen the bolts on front engine mount and it pulls away from the frame this is not good .
i fixed the vibration by 90% by putting a 2mm thick piece of flat steal between rubber mount and frame .
heaps better
Cheers .
i fixed the vibration by 90% by putting a 2mm thick piece of flat steal between rubber mount and frame .
heaps better
Cheers .
Tourer
Joined: Apr 2006
Posts: 346
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From: Pittsburgh, PA
There was another thread a while back where a guy put a spacer of some thickness in that same location with good results. It looked like the spacer kept the engine side of the mount front being in contact with the frame. I'm going to try this.
Tourer
Joined: Apr 2006
Posts: 346
Likes: 0
From: Pittsburgh, PA
There was another thread a while back where a guy put a spacer of some thickness in that same location with good results. It looked like the spacer kept the engine side of the mount front being in contact with the frame. I'm going to try this.
Stellar HDF Member
Joined: Mar 2006
Posts: 3,124
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From: From Long Island, now in So. Cal
You can shim with washers. Loosen the bolts, then jack the engine up until you can turn the bolts by hand with no resistance, measure the gap and shim. Also, remove one bolt at a time.
Below you can see where I shimmed the motor mount (gold washers) Originally the motor mount was preloaded from the factory. Many have had the motor mounts fail, most likely from being preloaded, it was loaded in such a way that the mount was being pulled apart. I did this when I first bought the bike, found the preload when I removed the California only vapor cannister (this is the original mount with 17,000 miles).
Road Captain
Joined: Jul 2007
Posts: 682
Likes: 1
From: Wichita, KS
Yep, seems like it's probably more common than most realise. I found mine needed shimmed nearly 1/4" when I put the true track on a couple weeks ago. I don't know if it's the TT or the shims, but mine is even smoother at idle now! I'm not real sure why HD can't fix this from the factory. I guess that might take knowledge and an effort, but what do I know! 
Mike
Mike
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Tourer
Joined: Apr 2006
Posts: 346
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From: Pittsburgh, PA
The bike was allready on the lift and this mod took all of about 5 minutes with jacking and retorqing the bolts.
Put the bike down and fired up, vibration at idle is down over 50% and vibration running the engine in neural at 3K is gone entirely. Simply amazing! I kinda like some shake in a Harley but had a little too much prior to the washer/spacer install. This forum is the absolute best.
Last edited by drhooligan; Apr 10, 2009 at 02:52 PM.
Tourer
Joined: Jul 2008
Posts: 400
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From: Austin, TX
Anybody have the torque specs for the bolts when you re-tighten? I don't have a manual, so I don't want to do this until I know what to retorque the bolts to. Also, should you jack up the engine while you're retorqueing the bolts?