ELIMINATING BAD BREATH
The Screamin’ Eagle Way
The Milwaukee-eight motor is still in its infancy, but, like any good parent, its owners want the best for their baby and will pay money to get it. Much like an actual baby, optimal breathing is pretty important when it comes to motors. The difference being you can’t shove one of those rubber nose plungers into your motor to make it breathe better.
What you can do is go out and get yourself a performance air cleaner, like the Screamin’ Eagle Heavy Breather we got our little mitts on for our 2017 Street Glide. It’s a quick-and-dirty installation that upgrades our oxygen intake, giving the Milwaukee-eight more air to burn. We didn’t see a reason to have it look ugly, so while we were at it, we dressed up the new breather with the matching Screamin’ Eagle Billet Heavy Breather Trim.
The new Screamin’ Eagle Heavy Breather sexified the Milwaukeeeight in our H-D Street Glide.
After removing the backing from the induction module backplate gasket and installing it to the plate, Alan puts the rubber rings in place in the counterbore around the breather screw holes.
The Screamin’ Eagle Milwaukee-eight Heavy Breather (part #29400264) comes complete with everything but the tools and the Loctite.
By the time we got to the Harley-davidson fleet center, shop boss Alan Barsi already had the stock breather assembly removed from the Street Glide.
Here, Alan screws the backing plate assembly onto the motor. A dab of blue Loctite goes onto each backplate mounting screw, they’re inserted through the plate to the module, and he twists each screw just enough to engage the threads of each of them.
The Screamin’ Eagle Billet Heavy Breather Trim Kit (part #61300688) is pretty simple: airbox cover, foam pad, airbox collar, and four #8-32 x 1.25-inch screws.
His first step is to join the kit’s throttle body to its backplate with the included self-tapping screws. He uses blue Loctite on all of the threaded fasteners for this project.