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im stumped
by: scoots - Jul 31, 2014 20:35:53 GMT -5
via mobile
Post by scoots on Jul 31, 2014 20:35:53 GMT -5
New bbk installed piston rings in correct order and the right sides up and i still am blowing oil out of my variator side crank seal
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im stumped
by: alleyoop - Jul 31, 2014 20:42:00 GMT -5
Post by alleyoop on Jul 31, 2014 20:42:00 GMT -5
Oh, so your crank oil seal is leaking, did you put in a new oil seal?
Make sure your VALVE COVER VENT hose is not kinked or blocked IT HAS TO VENT.
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im stumped
by: scoots - Jul 31, 2014 20:46:59 GMT -5
via mobile
Post by scoots on Jul 31, 2014 20:46:59 GMT -5
New seal and the hose dosnt looked kinked i have the scrappy catch can on my scooter and the hose turned yellow from clear before this new kit i just installed
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im stumped
by: alleyoop - Jul 31, 2014 21:05:32 GMT -5
Post by alleyoop on Jul 31, 2014 21:05:32 GMT -5
Oil is golden color it is just the oil up in the hose. The catch can is it attached to where the oil dip stick was? If so they are nothing but junk, do you realize that is where the oil pump is at and it will fill the hose and can with oil. Now your crankcase is that much lower in oil. People fall for this junk all the time.
But getting back to the oil seal did you get the right size oil seal, also when you took off the old one you may have scratched the case getting the old one out.
Alleyoop
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im stumped
by: JerryScript - Jul 31, 2014 23:23:52 GMT -5
Post by JerryScript on Jul 31, 2014 23:23:52 GMT -5
Unless you did a stroker crank when you installed your BBK, there is no reason to have removed the variator crank seal. If it is leaking as a direct result of the BBK without having been removed or installing a stroker crank, then the rings could be the culprit, allowing pressure out of the jug and into the crank case, which could push out the variator crank seal. You did offset the ring gaps when installing them?
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im stumped
by: rockynv - Jul 31, 2014 23:56:37 GMT -5
Post by rockynv on Jul 31, 2014 23:56:37 GMT -5
Did you remember to stagger the gaps in the piston rings so they don't all line up? Many forget this step and put the rings in with the gaps all lined up so they get excessive blow by. Also if you did not set the gaps and fit the rings to the bore they can snap when they heat up and the ends touch because they were set too tight. The cylinder can also get scored when this happens.
If you were blowing a lot of oil out the seal did you replace the damaged seal when you replaced the rings? Also if the main bearing is worn on the variator end of the crank then the seal won't hold and will fail shortly
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im stumped
by: scoots - Aug 1, 2014 11:22:33 GMT -5
via mobile
Post by scoots on Aug 1, 2014 11:22:33 GMT -5
I instaled a new stock crank and didnt stagger my rings
I will take off my catchcan tonight and order a new seal ...when i installed the seal i was carful and may have put the wrong seal not sure
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im stumped
by: scoots - Aug 1, 2014 11:23:00 GMT -5
via mobile
Post by scoots on Aug 1, 2014 11:23:00 GMT -5
I instaled a new stock crank and didnt stagger my rings
I will take off my catchcan tonight and order a new seal ...when i installed the seal i was carful and may have put the wrong seal not sure
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im stumped
by: rockynv - Aug 1, 2014 12:47:18 GMT -5
Post by rockynv on Aug 1, 2014 12:47:18 GMT -5
You will need to stagger the ring gaps at 20 minute intervals based on a clock dial or the excessive blow by will only get worse and you will eventually have a ridge going lengthwise down the cylinder wall where the ring gaps align which could cause the rings to catch and snap. Even with the correct seal with the ring gaps aligned you can get enough crankcase pressure to blow past a new seal.
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..BAD TO THE BONE..
