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Steve, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 7035
Experience:  30+ yrs. experience, MMI, HD technician, HD early, engine rebuild/performance, bike builder, kit bike program manager, CCI 2001-2004
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I also have pressure blowing my dipstick out of the oil can...I

Customer Question

I also have pressure blowing my dipstick out of the oil can...I feel a slight compression when I put my hand over the oil fill tube. Just rebuilt the top end bye the book...I feel nothing at the head breather holes with the breather off. I pulled the rocker boxes off to make sure I didn't put the bottom gasket on upside down...All good....Stumped!
Submitted: 2 years ago.
Category: Motorcycle
Expert:  Steve replied 2 years ago.
Welcome. My name is ***** ***** I would appreciate the opportunity to help with your question today.
there are 2 things that blow the dip stick out of the oil bag:
- over filled oil bag.....there must be a air void at the top of the oil bag or the system will get rid of the excess oil.
- excessive crankcase pressure.
you may be experiencing excess crankcase pressure from leak by of the rings.
this may be because they are not seated yet.
the ring gap may be incorrect.
the rings could be broken.
the ring gaps may not be correctly aligned.
whatever it is, it points to the rings.
let me know if you need more help.
Expert:  Steve replied 2 years ago.
let me know if you need more help.
if not, please leave a POSITIVE RATING.
thank you,