Removing the counterweight
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3rd Gear
Joined: Aug 2013
Posts: 7
Likes: 1
From: Euless, TX
Removing the counterweight
In the middle of a major rebuild of my Night Train and the motor is completely tore down. Che, the mechanic, mentioned some people are removing the counterweights in the Twin Cam B motors.
I see multiple benefits but I'm not sure. Does anybody have first hand knowledge on this subject.
Last edited by suuperdaave; Jun 29, 2017 at 06:36 PM. Reason: Adding image
Elite HDF Member
Joined: Jul 2010
Posts: 3,830
Likes: 302
From: Lorain Ohio
I've read where V rodders remove them, but they're just trying to squeeze every last drop out of the motor an those motors are pretty smooth anyway. The only reason I sold my EVO an got the TC was my old body couldn't handle the vibs that well.
Grand HDF Member
Joined: Oct 2009
Posts: 3,824
Likes: 603
From: Myrtle Beach SC
Having owned a '87 Heritage without the weight that I put around 50K miles on I can tell you with certainty that the weight is there for a good reason. My whole arm would go numb on a long run. If you never take trips and stay around local, maybe but forget it for any trip.
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3rd Gear
Joined: Aug 2013
Posts: 7
Likes: 1
From: Euless, TX
Benefits vs Vibration
The benefits I see are less weight, more HP, less moving parts for potential failure. But my main concern is the vibration. That's what I like about the B motor and I was just hoping someone here would tell me that it wouldn't be that bad.
But everything I'm reading says otherwise. So unless my mechanic comes back with something really profound, I'm probably going to keep it in.
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Road Master
Joined: Nov 2012
Posts: 809
Likes: 122
From: Portland Oregon
You will be profoundly sorry if you take it out. But, I guess you could be the guy on the forum that we could refer any future people that want to to do this to so you can tell him about how terrible it was! You would be shaking crap off of that thing like mad also, not to mention it would probably be detrimental to service life, besides being very uncomfortable. ‘A' motors aren't balanced, but they are isolated. Thats for you and for the motor and accessories alike.
