Hello everybody, has anyone experienced the Centa coupling coming loose on the crankshaft? The female splines in the coupling have worn on mine causing a horrible rumbling noise and I have had to re manufacture the thing.
Sorry to hear that Phil.
You've probably had yours off more than others here.
Just a Harley trick that may help you.
After '06 Harley changed their crankshaft to a full length spline on the crank for obvious reasons; read higher hp available. '06 and earlier have the same crank as the S&S Wedge motors used in the M3W's.
On both the old style, '06 pre, and new full spline, after '07 later, it's VERY IMPORTANT to run a tap into the crank on the new style and into the nut on the old style to clean he thread of any Loctite residue.
The Loctite will leave a residue on the threads and the nut on the old style and the bolt on the new style, will not seat all the way and this leaves the assembly a bit un-torqued.
On the Harleys it lets the compensator run a bit loose under the Belleville spring and eventually cause issues.
Likewise if there is a build up of Loctite in the nut and you keep adding Loctite to the male threads on the crank, you will get a false torque reading and turds will soon hit the rotisserie unit...
This may not be your issue, but it's important to always clean the nut threads and crank threads prior to reinstalling the Centa housing assembly.
Is yours bad enough that the crank AND Centa flange has to be replaced?
