10 mil CRANK

[gotta_goatsfast]

TDR_50 you make me nervous! lol I tend to rev my bike a lot.

[TDR_50]

Seal was in backwards but it is designed to seal in either direction . The pre-mix oil is gathered from the rundown in the transfer area and in the trough on the crancases , then collects and runs into the hole above the bearing. Also as the atomized fuel/air/oil mixture moves thru the crancase area it collects on the bearing surfaces . You can see that it is extremely important to lube all the crankshaft bearings when installing a new crankshaft as there is no real collection of oil at that point.

If the seal was leaking it would have sucked up all the transmission oil and looked like the mosquito truck going down the road.

Edited January 21, 2011 by TDR_50

[stroking]

Seal was in backwards but it is designed to seal in either direction . The pre-mix oil is gathered from the rundown in the transfer area and in the trough on the crancases , then collects and runs into the hole above the bearing. Also as the atomized fuel/air/oil mixture moves thru the crancase area it collects on the bearing surfaces . You can see that it is extremely important to lube all the crankshaft bearings when installing a new crankshaft as there is no real collection of oil at that point.

If the seal was leaking it would have sucked up all the transmission oil and looked like the mosquito truck going down the road.

 

so if the oil can not get to the bearing from the holes above the bearing with the seal backwards,because the seal is pressed against the bearing blocking the oil flow.

 

 

the humps keeps the bearing away from the bearing is oil can get down in between the bearing and seal.