Great mystery of the clean oil change resolved (no mess)

[mahlon_r]

CH48108-1 or equivalents have a by pass valve and CH-48110 or equivalents don't. The issue is the ability of the system to bypass the oil filter should it become plugged. The angled oil filter adapter that Paul has, does not have no by pass feature built into the oil filter adapter on the engine. Thus, you need a bypass built into the filter. Oil filter adapters that use a CH-48110-1 or equivalent filter must have a bypass valve built into the adapter they screw onto. If the adapter doesn?t have a bypass feature and you use a non bypass type filter, if the filter becomes plugged or restricted, you will starve the engine for oil and have a much bigger mess then oil filter removal causes, from the hole in the crankcase the thrown rod caused :-). The valve isn't there to save or not save a mess on filter change ( but that is an added benefit) but to provide oil pressure to the engine should the filter become plugged.
Good Luck,
Mahlon
"The opinions and information provided in this and all of my posts are hopefully helpful to you. Please use the information provided responsibly and at your own risk."

[Ironflight]

Thanks Mahlon!

That is the best explanation I have ever read about the Bypass/non-bypass topic - I actually understand it now! And of course, the reason I still have to use a bag and a rag when I change the filter is that there is always some oil between the filter and the adapter that is going to escape - I don't have to worry about dumping the whole filter full of oil down the back of the the engine, but it doesn't take much to make a mess....(but I have a system that works now!)

Paul

[Rosie]

I've been meaning to get these pics up of how I do my oil changes (now working on my 66th oil change ;-). Here's what I'm able to do with our O-360 A1A Rosie

[Richard Connell]

It has taken six changes for me to get it right but.....
CH48108 horizontal adapter.
Get a 4' length of 1.5" * 0.125 angle. Cheap soft hardware stuff.
Flatten the end out in a vice. It'll wedge nicely under the loosened filter and drain out to the side.
I'll take a photo next time. Didn't spill a drop last time.
Cheers!

[Capflyer]

I can't remember where I read the tip to use a bag but in the past my oil changes have been a mess. Tried all types of cuts in oil cans for a drip tray, fabricated a draining angle, etc. but the problem on my O320 is that a oil line enters the accessory case just below the oil filter leaving about a 1/2" space between them. On Saturday I tried it with a large ziplock back around the oil filter and it worked perfectly....not one drop spilled.

I love these forums where all kinds of great ideas pop up. Thanks all.

[Chino Tom]

Originally Posted by Rosie

I've been meaning to get these pics up of how I do my oil changes (now working on my 66th oil change ;-). Here's what I'm able to do with our O-360 A1A Rosie

Outstanding idea....works like a charm. No mess! Thanks Paul!

[turbo]

when there is no mess changing the oil. i find this 3 1/2 inch by 3 1/2 inch container to fit nicely under the lip of the oil filter holder.

you can also see that i have bent up the oil filter tabs so wiring on the filter it is easier to feed the safety onto the filter. keep on flying.