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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series D oil tank
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<blockquote data-quote="Gary Gittleson" data-source="post: 96024" data-attributes="member: 3625"><p>No, it is not a twin-start pump. I don't seem to be the only one with the splash problem. See David's posts on this thread. But after I made the splash-inhibitor, I still had excess pressure in the tank, which pushed oil out the breather hole in the cap. That's when I decided that I had to vent the oil tank in another way. I thought that if I could vent the tank back to the valve gear at the top of the engine, any oil carried would simply drop through the engine to the crankcase. I also reasoned that since the crankcase is vented with a one-way valve and is normally at a partial vacuum, the extra pressure coming from the tank should be absorbed.</p><p></p><p>In any case, it all seems to work and I am also now able to run with an adequate amount of oil in the tank with no noticeable loss.</p></blockquote><p></p>
[QUOTE="Gary Gittleson, post: 96024, member: 3625"] No, it is not a twin-start pump. I don't seem to be the only one with the splash problem. See David's posts on this thread. But after I made the splash-inhibitor, I still had excess pressure in the tank, which pushed oil out the breather hole in the cap. That's when I decided that I had to vent the oil tank in another way. I thought that if I could vent the tank back to the valve gear at the top of the engine, any oil carried would simply drop through the engine to the crankcase. I also reasoned that since the crankcase is vented with a one-way valve and is normally at a partial vacuum, the extra pressure coming from the tank should be absorbed. In any case, it all seems to work and I am also now able to run with an adequate amount of oil in the tank with no noticeable loss. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Series D oil tank
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