how to route the external oil lines on a 1974 Harley sportster engine and a custom oil tank?
I have a horseshoe shaped tank with two holes on the top rear, one on the right and one on the left and two holes on the bottom R & L..
There should be two 3/8″ lines and one 1/4″ line.
– The 3/8″ oil line from the return side of your oil pump will go to the top of the oil tank.
* If you have an aftermarket oil filter or oil cooler it will come from there. Otherwise it comes from the upper nipple that’s on the transmission (behind the sprocket cover.)
- The 1/4″ camchest vent line will go to the other top hole.
(It’s the one right behind the rear exhaust tappet block.)
- The feed to your oil pump comes from the bottom of the tank.
– The other one is not used.
This picture should give you a decent idea:
http://i486.photobucket.com/albums/rr227/mdawdy/Maintenance/OilFlow.jpg
After you hook up the oil lines, add oil, and start the bike you should look inside the oil tank and make sure oil is returning into the top of the tank.
If you need more info try the forums at http://www.xlforum.net/index.html
sportster motor build 1200.m4v
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