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Please help> gaining oil in the engine
Posted: Tue Jan 20, 2009 11:14 am
by HONDA_20
I have a 2005 crf450r and i think my tranny oil is somehow leaking into my engine if this is even possible. I use the same oil on both sides but my tranny keeps going low and my engine is gaining oil and coming out my airbox. Please help me try to fix the problem...Thanks!
Posted: Tue Jan 20, 2009 11:49 am
by motosicko
There's most likely a right crank seal bad. Need to take right crankcase cover off, disassemble clutch to access seal. # 19 in drawing.
Good news is you don't need to split cases.
Posted: Tue Jan 20, 2009 7:44 pm
by HONDA_20
thanks brotha man
Posted: Mon Feb 23, 2009 6:43 pm
by lvanduyn
Does anyone know if the CRF 250r's have this same exact problem? Is the fix the same? My 250 also seems to be gaining oil on the motor side and losing some on the tranny side.
Posted: Mon Feb 23, 2009 6:56 pm
by amaviper
Posted: Wed Jul 08, 2009 1:35 am
by kayesport
I forgot to reply to this after I finish the work
Yes I replace the seal in between the engine and the gearbox and the problem disappeared
20 minute job no problem at all
Thanks for the help everybody on this one