Originally Posted by MRX4-R03
Well today I cleaned the engine real good and put after run oil in there and let it sit, I came back thirty min later and the after run oil was already leaking through the rubber seal, thank god it was not leaking at the crankshaft, here are some pics but they are not that close but you should get the picture, what should I now with Orion..
The after-run oil came out from the front bearing is normal if you put too much in. Since CRF have different design on crankshaft....... oil leaking may be happened more than other brands even you put same amount after-run oil to these different engines.
Every first time before you start a engine, you should take out the glow plug and bump the engine on start box and force all after-run oil out. Then you won't have oil leaking problem all along the whole day.
Actually a little bit of oil come out from front bearing is normal......... of course you may need a new bearing if too much oil leaking.