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I forget. overflow???

Roboquad2010-08-10 17:31:36 +0000 #1
OK ...

the tube that is for oil overflow at the bottom of the crank case what is thereal reason it pukes out fluid. please answer if you truly know. yes wheelies help, but where does it build from....I have about 2 -3 shot glasses full in mine. feeds to the front of the bike between snorks. no problems with the bike just wondering how to keep the oil in the engine where it belongs.
phreebsd2010-08-10 17:38:55 +0000 #2
catch can, brother.
nmkawierider2010-08-10 17:52:12 +0000 #3
Quote:

Originally Posted by phreebsd

catch can, brother.

X2...That's the only way. Where the Brute's Crankcase vent is, at about a 47 degree angle and more it gets covered with the oil in the crankcase. There is NO other vent in the engine so as the rings blowby a little on good engines and a lot on warn engines or engines with very high compression pistons, pressure builds and it just pushes the oil up the vent tube. That's all. It just has no choice. At prolonged high RPMS the spray in the crankcase is very high as well as the blowby. That pushs it up the tube too. If Kawie had put the vent on top of a rocker cover or in the center between the two cylinders, we would have nothing to talk about.

There are several How-Tos on catch can mods. All work very well.
J2!2010-08-10 18:42:46 +0000 #4
X 3 on the catch can..On mine, I just ran a hose from each cylinder and put a T in it and ran one hose up to the pod so the motor can breathe.. The oil never comes up that far, just goes out one cylinder and back in the other one.. Has worked great so far, very little oil has been noticable from the steam coming out.. No catch can on mine..
Brute650i2010-08-10 19:19:03 +0000 #5
Quote:

Originally Posted by Roboquad

the tube that is for oil overflow at the bottom of the crank case

are you talking about the one that is water pump drain( drain really isnt the right word but I cant think of what they call it) ? but in any case the crankcase vent is not on the bottom of crankcase so you must be talking about this overflow.

????????????????????????
rmax2010-08-10 19:10:54 +0000 #6
Quote:

Originally Posted by Brute650i

are you talking about the one that is water pump drain( drain really isnt the right word but I cant think of what they call it) ? but in any case the crankcase vent is not on the bottom of crankcase so you must be talking about this overflow.

????????????????????????

that is a void between water an oil,if the oil seal fails it will allow oil to drain out, if the water pump seal fails it allows the water to come out an not mix with the oil in crank case, i have the same problem with mine now it will leak down to right at a quart low, an if you fill it up it will just leak back down
Brute650i2010-08-10 18:29:21 +0000 #7
^^^ exactly. I was waiting till he confirmed that was what he was talking about.

The are 2 seals if coolant is leaking then it means the mechanical water seal is the problem if its oil the that is the oil seal that
Roboquad2010-08-10 20:52:53 +0000 #8
Sorry guys seals are not the issue all new seals,, talking about excessive overflow from hard riding. Thank you NMthat's what I was wondering. Did you know what the trick with drilling inside the engine to slow pressure from sending the oil outward was. I know every bruit has had this problem and I run 10-1 compression or higher. YZF Catch will be next I guess

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