1999 FXDX Rear Outer Roller Bearing Upgrade

[Garystaven84]

I have a 1999 FXDX with 20k miles. I am inside the cam chest to replace the factory tensioners with Cycos. It already had Andrews TW50 cams installed and the better Andrews hardened cam sprocket that still uses the early style woodruff keyway.

Inner bearings upgraded to Torrington but the rear outer cam bearing was still the problematic ball bearing.

I installed the Harley roller bearing "upgrade" kit there but with the cam plate bolted up and the gear installed, the rear cam has excessive in/out play. The bearing kit came with only one  thrust washer.

I found an old Andrews cam install instruction PDF that states if using Andrews cam sprocket you must use TWO thrust washers.... one on the inside (already installed) and one on the outside between the bearing and cam sprocket... which I need to order. Problem is there is no relief in the outside portion of the cam to install the centering O-ring (stated in the Andews diagram attached). There was one for the inside portion (orientation beginning with the O-ring followed by thrust washer followed by the pressed on inner race).

Has anyone ran into this before with the older keyed cam when upgrading to roller bearing? Yes the splined shaft is better but I figured since it already has the TW50 cams (which I love) and the upgraded Andrews sprocket why spend hundreds of dollars more.

If this can't work together then gosh darnit I wasted some time/money pressing in new bearings and installing Cyco tensioners for no reason and will need to go to a complete different setup $$$$....

[rigidthumper]

I've done those without the oring (which centers the thrustwasher) without issue.

[xlfan]

Do you have the 25562-99
SPACER, CAM DRIVE SPROCKET ALIGNMENT 0.350 INCH THICK (USE AS REQ'D.) in place?
There has never been used an outside o-ring for centering the outside cam gear spacer.

[Garystaven84]

Do you have the 25562-99
SPACER, CAM DRIVE SPROCKET ALIGNMENT 0.350 INCH THICK (USE AS REQ'D.) in place?
There has never been used an outside o-ring for centering the outside cam gear spacer.

That 25562-99 stock spacer is not used here as that is built into the Andrews cam sprocket. Andrews has 3 shims to use in various thicknesses to achieve proper sprocket alignment....That is not the issue I have here... the problem is the Andrews gear/spacer does not have thrust support for the roller bearing hence why I need the .055 thrust washer on the outside of the roller bearing (I tried to attach a snapshot of that diagram but a moderator removed it unfortunately). Maybe the link will be approved.... Scroll down all the way to the bottom of the page for a visual: https://www.denniskirk.com/dk/pdf/instructions/h1/dkh11120.pdf

From the Andrews instructions for my Andrews sprocket gear https://www.andrewsproducts.com/sites/default/files/assets/TW88spr34.pdf

"Andrews Products 34 tooth sprockets are machined to the same length as a stock sprocket with a .350 spacer (approximately .690 length). For stock sprockets with a .350 spacer no shim is required."

[xlfan]

Have you tried a cam shim of .055 for the pre 90 nose cone engines?

[Garystaven84]

Have you tried a cam shim of .055 for the pre 90 nose cone engines?

No I bought the .055 thrust washer (HD part # 8986) for this application and all is well now.