d -bunked 6 #1 Posted May 4, 2016 hello everyone hope someone can help I have a 1979 d-160 onan engine . for some reason oil is coming out of vacume line going to fuel pump can anyone help please thanks Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,441 #2 Posted May 4, 2016 Don't think these apply to your problem but since I looked for something here they are. Garry Share this post Link to post Share on other sites
Achto 26,198 #3 Posted May 4, 2016 (edited) Over filling the oil can cause this issue. Another cause might be excessive crankcase pressure from blow by on the piston rings or case vent plugged. Does it normally use a lot of oil? Edited May 4, 2016 by achto Share this post Link to post Share on other sites
d -bunked 6 #4 Posted May 5, 2016 (edited) no does not use oil very rarely do i have to add oil. but noticed lately once motor is hot very hard to restart . plus wont run right unless choke is 1/4 open engine pulses up and down at low rpm. thank you both for info hope it helps Edited May 5, 2016 by d -bunked add more info Share this post Link to post Share on other sites
d -bunked 6 #5 Posted May 5, 2016 9 hours ago, gwest_ca said: Don't think these apply to your problem but since I looked for something here they are. Garry 39 minutes ago, d -bunked said: no does not use oil very rarely do i have to add oil no does not use oil very rarely do i have to add oil Share this post Link to post Share on other sites