Rotax 912 oil tank crush washer.

[facthunter]

Is it really Necessary?  The faster the oil drains, the better. How can  the Original fail?   I'd consider putting a Magnet in it, to catch ferrous metal bits,  Nev

[skippydiesel]

24 minutes ago, 440032 said:

Plan B.

Fit a FUMOTO oil drain valve, once.

I see this idea promoted quiet a lot on the Rotax Owners Forum.

 

Cant see the need myself. At the rate I accumulate hr's  an oil drain only happens once per annum, in a good year a possible second. Hardly a challenging workload.

 

The drain plug should not be tightened any more than necessary to crush the washer (Rotax will have some ridiculously low torque setting , wrist "click" will do me)- easy to see & do. The plug is then safety wired to the base of the tank. - no chance of comming undone.(I have never had a leak from the oil tank).

 

Removal is a doddle - remove safety wire and using two spanners "crack" the lightly torqued plug.

Its now finger tight but a tad hot to actually use the fingers, so continie to loosen with one spanner.

Put your old oil receiveal container up as close to the bottom of the tank, as is constant with doing the job/access - this will reduce the chances of spillage.

I use roofers soft aluminium flashing (Bunnings Aerospace) formed into a  channel & hooked over the engine frame, to direct the oil into a calibrated container (I like to record oil quantity removed, then added).

It's annoying but of little concern if the plug drops into the hot oil - magnet will fish it out.

 

I am not against the oil drain valve - have one fitted to my Ranger sump. The Ranger requires removal of bash plates, before loosening the drain plug and then the position of the drain means oil hits a cross chassis member & splashes everywhere (nasty!). The drain valve & short hose prevents, all that mess & the need to remove bash plates-  a no brainer!😈

[danny_galaga]

Skippy, I thought I'd kill two birds with one stone with my first oil change. I got a disposable aluminium BBQ drip tray thing and bent it to shape to fit under the tank. I taped it in place. That oil shot out so fast it came loose and splashed everywhere 😄

 

"Oh Mr Hart, what a mess!" 

 

So I had to manhandle this hot, rapidly filling tray onto the ground and just let the oil pour into the bottom cowling. Next time, I will use some scrap cardboard (or flashing like you) and just leave the tray on the ground and the flashing sitting, WIRED securely to the bottom of the cowl.

 

Facthunter, there is a magnet near the gearbox, presumably since most ferrous metals will emanate from there. There were some tiny bits on there.

 

😇

Edited 11 hours ago by danny_galaga