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Johnny & Monica
04-17-2006, 09:49 PM
Why is my 450r blowing oil out the vent tube into airbox ? I thougth that it may have been over full but not the case ??? It emptyed the clutch side enougth the clutch wouldnt work :( HELP Any ideals ?
IOWAracer
04-17-2006, 10:04 PM
could you of had a piece break in there when you broke your case? That is my best guess.
atvdude
04-17-2006, 10:24 PM
Not exactly sure but if the crank seals that seperate the clutch/tranny side from engine side go bad from possible bad bearings wouldnt this cause the case to over pressurize pushing oil out? just a though? i may be wrong??
Prey
04-18-2006, 04:40 AM
Originally posted by atvdude
Not exactly sure but if the crank seals that seperate the clutch/tranny side from engine side go bad from possible bad bearings wouldnt this cause the case to over pressurize pushing oil out? just a though? i may be wrong??

yes it could, and, and someone may have mentioned to try a leak down test :D
honda350r
04-18-2006, 07:53 AM
You may have a broken right case! I have had the same thing happen to me ..
Colby@C&DRacing
04-18-2006, 08:45 AM
You need to do a compression test you may have alot of blow by. :(
tcr450r
04-18-2006, 09:40 AM
Originally posted by atvdude
Not exactly sure but if the crank seals that seperate the clutch/tranny side from engine side go bad from possible bad bearings wouldnt this cause the case to over pressurize pushing oil out? just a though? i may be wrong??


Mines in the shop as we speak for that very reason.
Johnny & Monica
04-18-2006, 09:29 PM
Only 60 pound compression is what I ended up with :( Hoping new piston an rings will help out :D
WhiteZee
04-18-2006, 09:35 PM
Originally posted by Johnny & Monica
Only 60 pound compression is what I ended up with :( Hoping new piston an rings will help out :D
did you disable your auto-decompressor when you did the compression test? if you didnt that would be why it only read 60psi.