Oil blow from crankcase breather
#1
Oil blow from crankcase breather
I recently rebuilt my engine on my 1994 FXSTS and now i am experiencing excessive oil coming from my crankcase breather. i have stretched the springs in my oil pump and still have the problem i was wandering if antone would has any ideas as to what would be causing the problem.
Hillbilly
Hillbilly
#4
Is it blowing at idle or on the road? Is it an aftermarket breather that you attached yourself? If it is positioned where air blows into the breather while riding it will not breathe and build up pressure and blow oil out when the pressure overcomes the outside force. Try repositioning the breather so wind pressure isn't against it while riding.
#6
There is 200 miles on the rebuild. It is blowing at idle. I have not been riding hard following the break in period rules not overreving or let the engine chug. all the gaps are right and the rings are in properly.
#7
Is it blowing at idle or on the road? Is it an aftermarket breather that you attached yourself? If it is positioned where air blows into the breather while riding it will not breathe and build up pressure and blow oil out when the pressure overcomes the outside force. Try repositioning the breather so wind pressure isn't against it while riding.
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#8
Join Date: Sep 2007
Location: Bluffton, South Carolina
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Your bike should be a top breather. If your bike is a bottom breather, there is a piece of plastic that is a seperator that takes the oil out of the air going out of the breather. It goes in the tube that is in the gearcase below the breather gear. Is that in place???
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Last edited by miacycles; 03-09-2012 at 06:30 AM.
#9
WHere is this peice of plastic located do I need to Pull the cam cover to see it?