May 10, 2017 · If the crank is turning clockwise, a geared drive would turn the rear cam counterclockwise, but a chain would drive it in the same rotation as the crank. With gears on the inside, the wrong rotation would also turn the other cam the wrong direction.

Jun 2, 2010 · Screamin' Eagle® Hydraulic Cam Chain Tensioner Plate Upgrade Kit MSRP $429.95 S&S Cycle 585 Gear Drive Easy Start Cams Complete Kit $795.99 Can we discuss the pros and cons of going either of these two routes?

Mar 14, 2017 · The benefit of the gear drive is there are no chains or tensioners to fail. The downside is the lash can stress the crank bearings. A lot of bikes built with chain drives don't have the tolerance for a gear drive. If the crank runout is too high, you can't even use a gear drive cam without taking the whole motor apart.

Dec 1, 2013 · back when the gear drive set up first came out,we installed 100`s of sets without checking run out (nobody did),when the TC flywheel run out problems became apparent we (along just about everyother shop) started checking run out.we have installed gear drives at .005 runout (against our recommendations) but the bikes are still running fine with no more noise than any other bike.the .012 factory ...

May 11, 2011 · I went to college, the first time, for engine machining and I remember gear driven cams being a BIG discussion in our performance classes. The instructor told us time and time again that gear drive cams in a small block or big block V-8 engine will use 30hp. This is because of the constant gear on gear drive.

Oct 24, 2006 · Gear drive is the way to go! Without a doubt. Reason the moco does not use them is besause of EPA noise regulations - see its not only exhaust pollution that has stringent requirements, but there are other tests involving riding by at a certain speed in a certain gear, and then measuring the TOTAL noise level including mechanical noise - hence to use of "quieter running chains".

Mar 14, 2014 · The new cam plate upgrade with the hydraulic cam chain tensioners and high volume oil pump would be a good reason to go with the chain drive over the gear drive. If you go back to chain drive don't put your old parts in. It will cost you more but the upgrade is well worth the extra money. Also you don't have to worry about crank run out.

Sep 3, 2024 · If you install sprockets with lower gears they don't somehow take precedent, or become more important than the gear you are using in the transmission. All the gears involved multiply together for the overall gearing. I have a Jeep. For rock crawling you want lower gears. The lower the better. I have a manual transmission with a granny low first.

Apr 3, 2013 · So to truly get the same gearing as a 1200 you want to replace the front primary gear with a 38 as well as a longer chain? And put a 29t trans pulley on it. Is that the best way to do it, or do shortcuts like say a 32 tooth trans pulley, or a …

Aug 2, 2019 · TC pinion runout issues began in 1999 ! The issues mostly cleared up with the '06 and newer TCs, 6 spd models. The MoCo believed that the tensioner/chain configuration would compensate for pinion runout among other things. .003-.004" isn't very much unless you're talking about gear clash, more than that and the gears can grenade !