Bilbo 3 #1 Posted May 11, 2015 I have a 1996 Wheelhourse 520H with an Onan engine. Last fall, I had to repair a problem with the oil breather. Finally found the part on e-bay and just started to put it back together. There were two tubes going to the air cleaner. I can't seem to locate the small line (not the oil breather) going to the air cleaner or see where it could have been connected. Can someone tell me what this line is and where it comes from? Share this post Link to post Share on other sites
WH nut 553 #2 Posted May 11, 2015 Check the vacuum gauge 1 Share this post Link to post Share on other sites
shallowwatersailor 3,214 #3 Posted May 11, 2015 The connection on the back of the gauge breaks off flush so it is hard to see. Share this post Link to post Share on other sites
Bilbo 3 #4 Posted May 12, 2015 The line was from the vacume gauge. Thank you both very much! Share this post Link to post Share on other sites
ericj 1,579 #5 Posted May 13, 2015 the vacuum gauge hose connects to the intake manifold, the small hose connects to a small nipple on the bottom of the air cleaner base and connects to the filter senser located beside the battery on the left side sitting on the tractor eric j Share this post Link to post Share on other sites
