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Old 08-14-2010, 06:23 PM   #1 (permalink)
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Join Date: Jul 2010
Location: Bellingham, WA
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scootadoc wants to know Dino or Syn?
Rocker Box Gaskets

After spending a couple of weeks trying to find gasket kits for my 88” Evo, I gave up and replaced the rocker boxes with stock S&S units.

These new boxes are a big improvement over the original die-cast/chromed rocker boxes that came with the bike (2001 Indian Scout). They’re billet aluminum and polished, not chromed. I got them from JP Cycle.

The S&S tech told me to make sure I got all the old Loc-Tite® out of the holes in the heads so that the torque settings would be correct. I used taps to chase the threads and then cleaned out the debris with swabs and solvent. The cotton swabs are good for picking up the little bits of aluminum tailings. I used my shopvac with a small nozzle to suck out any remaining crap.

The prep work took the most time, and installing the boxes with the engine in the frame was pretty straightforward. I did buy the special allen heads that S&S sells to do the job in-frame. I thought they were a tad pricey, but they made the job a lot easier.

For the aft cylinder it’s still a tight squeeze, but a 5/8 crowfoot worked fine. Used the same crowfoot to torque all the screws so they’d be the same, and kept the head of the tool paralell with the body of the wrench so no calcs were necessary.

Re-adjusted the pushrods (new o-rings on the covers) and fired her up. Success!

Now for my favorite part…a road test.
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Old 08-15-2010, 09:39 AM   #2 (permalink)
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Join Date: Aug 2008
Location: Iowa
Posts: 357
rcsoftail wants to know Dino or Syn?
Good choice. They should provide you a trouble free and leak free experience. The one thing I have noticed with billet is that it seems to be a better heat sink than cast, so it can absorb and radiate heat a little more. You may feel it more on a hot day.... Nice not having to worry the chrome flaking. You can also buff out scatches on polished billet.
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