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Antique Gas Engine Discussion

Early Novo S Crankcase

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Old 06-29-2005, 12:06:52 AM
Hank Czerwick Hank Czerwick is offline
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Default Early Novo S Crankcase

I'm a relitively new owner of a very early Novo Type S 1 1/2hp. The type before they began to put the hand hole plate on the side of the crank with the name NOVO cast into them. I've had to remove my cylinder and I noticed there's oil from the wrist pin drip oiler pooled in the bottom of the crankcase. Looking over the crankcase I only see one possible place where this could be drained off on occasion. That hole has a pipe fitting in it that is hooked to a bit of quarter inch soft copper that is bent into a inverted "U" to make a breather vent. I know I should break down and pick up one of the reprint manuals from one of the sponsors, but I'm looking to put this back together tomorrow and thought I might round up a answer here. Now I can imagine that oil in the crank splashing around is probably a good thing, and possibly there should always be some there. With the drip oiler constantly adding to the quantity though sooner or latter it's bound to become a issue of too much. A breather who vents from under the fluid level of the crankcase seems odd to. I guess to make a long question short, what's the proper care for a Novo S in regards to oil in the crankcase?
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Old 06-29-2005, 07:30:33 AM
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Luke Tonneberger Luke Tonneberger is offline
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Default Re: Early Novo S Crankcase


It is my understanding that the connecting rod at it lowest point should just make contact with the oil in the crankcase. This will allow the big end of the con rod to get lubricated. A little more oil is probably ok. If there is alot of oil in there it will just leak out of every possible opening. The tube you speak of probably isn't a vent, it is to drain off excess oil when the level is too high and it is slinging all over the place. Some information can be found here, but not what your looking for:
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