OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Honda Engines GXV390 chaging oil with vacumm pump.

Hi all,has anyone tried this,after the disaster of the first oil change and messy cleanup I used the vac pump
that i use on my SUV diesel,the hose is about 1/4" and it drained it in under 2 minutes,or so i thought.Put back in 1 liter
and moved the lawn only to notice oil dripping from the air filter area,sure enough it was 1 inch over full.
Obviously hose is not getting all the way down.Anyone figured this one out yet?
Colin

Hi Colin,
I get a bit of sheetmetal and put a bit of a fold in it to get the oil out past the chassis rail and I pick the opposite side of the mower with a chain block a couple of hundred mm off the ground so the sheet metal is angled down so the oil can run down instead of pooling and spreading out across the chassis too much. You will still get a bit spread around but most will drain into the container, hopefully

Hi there norm,thanks eh norm.I'm now thinking the drain plug may be the problem ie too long so will wait till next oil change comes around and maybe shorten it and hoping that will work,sucking oil out seems the perfect solution on these mowers,it is on my SUV as it saves taking the cover off the bottom of the engine bay.

Just a note I have been using a pneumatic oil extractor for many years and no longer have those messy oil changes. I had to go this route as several small engines no longer have drain plugs.

My uses an air compressor to vacuum charge the extractor but there are cheaper version out there that uses a hand pump.