oil line routing 1991 sportster

[0159robinson1]

hi people,need help. i recently aquired an engine for my bobber project but the oil lines are not marked. one line just in front of rear engine mount,another line in front of the drive sprocket behind the cam cover,two lines going into the oil pump can anyone tell me what is the main feed and what is the return.and which is the breather.

 

[fin_676]

The vent line is the one near the sprocket the main feed and return are the 2 lines going to the oil pump and as i remember but could be wrong here that the feed is slightly larger diameter

Brian

 

[0159robinson1]

Hi Brian thanks for the reply, the line in mentioned just in front of the rear engine mount ia a larger diameter than the others any idea what it is

 

[fin_676]

Wild guess that it is a vent for the gearbox it is too dark to go out to shed to start pulling sporty to bits to work it out

Brian

update breather tube is the part name so wild guess may be close

 

[09RG/92spster]

I have attached a page showing the oil routing.

 

[0159robinson1]

Thanks for the diagram just what i was looking for.