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07-17-2013, 09:01 AM
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#1 |
 
Join Date: Jul 2011
Location: Connecticut
Posts: 493
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139 keeps wasting crankseal
My 2008 139qmb keeps blowing the crankshaft oil seal. I have gone through three seals in the last month. Compression checks out fine at 150psi, but I have noticed that not as much oil has been venting to the catch can.
I am thinking there may be an obstruction in the vent labyrinth. Thoughts as to what could potentially cause higher than normal oil pressure? Bike is otherwise running great and is stock except for open element air-filter, #85 main jet and 6g rollers.
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2011 Roketa MC-23-150 4T 150cc 157 qmj 24mm carb w 115 main jet and paper cone air filter Manual petcock w Tygon fuel lines Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust RED spring clutch Adjustable CDI (brand unknown, it's blue and red and works great!) KOSO high performance variator w 12g sliders Gates Powerlink 835-20-30 belt GPS verified 65mph on flats. |
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