1979 SPORTSTER oil tank, hot and cold while running
Hi, On my 1979 Sportster I bought from my bud , I started checking all out and I found that when the engine is at normal operation temperature the left (drivers) side of the oil tank is HOT, on the fill side, right side it is absolutely cool. What is up with that. My vent line goes to the right side top near the filler and the return is going to the top left forward of tank. The hoses are different sizes which makes me think this is normal, but why should it be blazing on one side and very cool on the other. It looks to me as though the feed is taking in the return as soon as it re enters the tank, not getting a chance to circulate properly with the rest of the oil in the tank. It makes no sense to me. Touching the right side of tank you wouldn't think the engine was even run?
Last edited by jimlisa; 11-17-2016 at 10:23 PM.
Reason: incomplete model year