|The tips and tricks:
- Clean everything with engine cleaner, hose off, and blow off with air.
- The long tubes are not reversible, look closely.
- Be sure to reuse the thin flat washer that goes between the middle cork and the spring.
- Leave the jam nuts snug and just turn the 1/2" lifter.
- Pop stubborn rods in with needle-nose pliers.
- Make sure the corks are the small enough to fit the middle cup.
- Have a bin or tray for all the parts.
- As always, return the tools to the toolbox as you work.
- Clean clean clean.
As simple as the pushrods look, there are many little subtle things you have to know about. (Click for video.)
Iron Sportsters have iron cylinder heads. This means the valve seats onto cast iron instead of a hardened steel seat. As the engine runs, the valve action wears down the seats, especially on the exhaust valves. This means you have to adjust the lifters frequent, as often as every 500 miles.
It is not a difficult procedure, you can do it in 5 minutes. Thing is, there are some tricks that can save you money and time. I used to have to buy a new set of aluminum lifter blocks every couple years. That was because I was not cleaning the whole side of the motor before I opened up the pushrod tubes to adjust the valves.
A Sifton tappet set is 150 bucks, and you get converted to cap-head Allen bolts. A true V-Twin replacement is $135 and you can keep the 1/2 inch hex-heads so that you don't have to try three different Allen wrenches to get the right size.