Make sure you have the right oil filter on your bike. HD now sells a "One size fits all" filter that has too small of micron rating for the Evo, and since the oiling system is different on the Evo then the TC motor, oil won't return to the tank fast enough and can puddle in the engine and vent out the heads. Judt like you're explaing yours is doing.
The TC engine runs the oil to the filter off the oil pump, where the Evo has it off the return line from the pump, and back to the tank.
JPCycle and K&N still sell the old style Evo filters. I have a 1340 Evo with an Andrews cam and I have NO oil venting what so ever, and when I had my Arlen Ness Big Sucker air filter on there, at the most, I'd see one drip after a day of 70-75 mph riding.
Make sure your oil pump vent line and return line to the tank are in good condition, and not kinked, as well, restricting flow.
Worst case scenerio is that your plastic breather gear has all the veins broken off, which can happen, and you'll have to pull the pushrods and cam chest cover to get to it and replace it. Great time to upgrade the inner cam bearing and cam.....
Don't accept that BS that "All Evos do that...." from your dealer. It's not true. Most dealer's mechanics barely know what an Evo is anymore, since they haven't been made in 10 years.
My dealer also told me that "All Evo's make some sort of valve ticking noise...that's completely normal...."
Yeah.....especially when they come from the factory with undersized cam gears that make a tell-tale ticking noise off the pinion gear, due to improper clearence, from the factory........ {{rolling eyes}}.
Quote:
Originally Posted by kerrycorcoran
I have seen this happen on a few EVO's. Some times the check ball gets stuck in the oil pump.
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That's called "Sumping". If that happens, it's on start up and not during riding. Similar results though.....a freaken mess.
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