Gear Drive Cams
Thread Starter
|
Cruiser
Joined: Jun 2008
Posts: 130
Likes: 92
From: Lone Grove, Texas
Gear Drive Cams
Going to do cams on a 2009 FLHTCU. With all the worry about chain tensioners going bad, I was wondering if anyone had converted to gear drive cams and just how difficult a job that is. Thanks for any input
Stellar HDF Member
Joined: Nov 2004
Posts: 3,156
Likes: 41
From: So Cal
There are many threads about gear Drive Cam Conversions , use the search. Most of them are on 88" prior to HD releasing the Hyd Tensioner .
Its already been said but the HYd Tensioner set up is pretty maintaince free for 75,000-100,000 miles and most riders dont ever put that on their bikes anyway so you looking at upgrading a component that you will probably never have a problem with in your ownership lifetime anyway. The other ting is the runout , with much looser tolerences allowed on the 103" there is a good chance that your stock crank wont allow you to install or give good results with a Gear Drive .
Its already been said but the HYd Tensioner set up is pretty maintaince free for 75,000-100,000 miles and most riders dont ever put that on their bikes anyway so you looking at upgrading a component that you will probably never have a problem with in your ownership lifetime anyway. The other ting is the runout , with much looser tolerences allowed on the 103" there is a good chance that your stock crank wont allow you to install or give good results with a Gear Drive .
Seasoned HDF Member
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
No doubt. I checked mine recently and I'm between .006 and .007! No gears for me!
Trending Topics
Thread Starter
|
Cruiser
Joined: Jun 2008
Posts: 130
Likes: 92
From: Lone Grove, Texas
I've got 30K on the bike now. I'll give them a look when I get in there. Thanks for the advice
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
HDF Community Team
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
.003" used to be the factory runout spec for warranty purposes; that change to .012" in 2007 when the crank manufacture when off-shore. Gears can be run with more but .005" would be the limit for me. That much runout will likely require an U/S or O/S pinion gear and could generate some noise. What you have to watch for is future movement, i.e., if you check runout at 2500 miles and it's .0025" and you check again at 5000 miles and runout has increased to .0035", even though runout is acceptable for gears, no way would I install gears in that situation. If the crank continues to move, gear breaks a tooth and bad juju follows.
