Draining Engine Oil vs Extracting Engine Oil

stlcharcoal

Those quick drains are pretty popular on aviation piston engines.  With all the cowlings and compactness, it can is a major PIA trying to get the sump on some airplanes.  So a lot of people put those on the ones that you push up on and have a hose barb.  When they first came out, a lot of owners put them on Piper's with retractable gear--the nose wheel would come up shortly after takeoff, press on that drain, and a minute later all the oil drained out of the engine.  Low altitude with a 180 degree turn back to the airport, you can imagine how many pilots it killed before the word got out. 

The oil filter locations are even worse--especially since most were horizontally mounted.  I had a pretty neat tool for that......stainless steel hose clam with a hollow point on it.  Put it on the oil filter at the 12:00 position, crank it down to pierce the filter, unscrew the filter to the 6:00 position and let most of the oil drain out.  I could catch the few tablespoons much more easier than a cup of it.

20stone

+1 on using an extractor. 

Eoin

stlcharcoal said:

.....The oil filter locations are even worse--especially since most were horizontally mounted.  I had a pretty neat tool for that......stainless steel hose clam with a hollow point on it.  Put it on the oil filter at the 12:00 position, crank it down to pierce the filter, unscrew the filter to the 6:00 position and let most of the oil drain out.  I could catch the few tablespoons much more easier than a cup of it.

Neater variation on the simple screwdriver through the filter solution! I've never got on with clamps / straps alone, so yours is nice with some positive engagement. Always try for a cup wrench if I can get one these days.

gamason

We use the Fumoto on 65 class 8 diesel engines in our operation. Never had a single issue with any of them. As far as warranty goes, if you use proper oil and filters and maintain receipts they can NOT deny warranty coverage. Check out the Mangusson-Moss Act for information on warranties.

fishlessman

i have a 1964 volvo sitting in an old wooden boat, oil gets extracted every year, no other way to get it out. marine places have the extractors as well