oil draining

[cimo]

http://www.oildrainvalve.net/products/T206N-:-7{47}8"%2d14-UNF.html

currently looking for a better solution to my current oil change procedure (it's just too much messing about).
drilling & tapping a barbed hose tail into the existing bung would be more cost effective I reckon.
With a hose permanently connected to the hand pump, I wouldn't need an actual valve?

Any other suggestions/experiences?

 

[prv]

Not quite the same thing, but my Volvo D1-30 has a dedicated sump drain tube - you can see it in this picture ( http://www.laivosandelis.lt/media/c...ab33525d08d6e5fb8d27136e95/a/2/a2005-1099.jpg ), just to the low right of the oil filter, with a rubber cap over it. Because this is on the inaccessible side of the engine in my installation (great piece of design/choice of engine there...) I have attached a length of flexible tube that runs up and over the engine to a more accessible point. I then plug a Pela sucker onto the end of the tube. Seems to work well. I don't have any valve in the system, relying on the rise of the pipe to keep the oil where it belongs. If the sump was somehow getting pressurised, the air would come fizzing out of the dipstick hole before it pushed the oil up and over my loop.

Pete

 

[sarabande]

looking at possible points of failure of 'just' adding a tube to the existing bung...

1 at the brazing/weld interface of the bung
2 of the pipe (plastic or metal) carrying the oil away, by degradation of contact with old oil, or vibration
3 of the support mechanism of the pipe, allowing the pipe to be lower than the bung


What are the problems with the hand pump ?

Have you tried a Pela? I use one for all sorts of farm vehicles and engines. Provided the sump oil is warm, it is easy and quick to extract 6l at a time and then pour that into an old 20l container for use on fence and post preservation.



Any pics of the present installation would be useful.

 

[nigelmercier]

My VP MD22B-P engine has a pipe to suck the oil through, but it doesn't get the last bit out. It worries me a little.

 

[cimo]

The Pela pumps are the business alright (& I want one), but my current hand
pump is still well fit for purpose.

My preferrence would be to empty from the sump drain.
It was an education to see the 33years worth of metal filings in the oil pan of the bukh, when I had it off over the winter. So, I'd like to include a magnetic bung into the solution somehow too.

I guess the oildrainvalve would be belt and braces, particulary if you don't have an oil pressure alarm (but I hate parting with that much hard earned in one go!).

The volvo drain tube is a much better approach to what I was initially planning though.

Pleanty food for thought, hmm.

cheers folks.

 

[lw395]

On my first boat, I drilled and tapped a hole in the back of the bottom of the sump M6.
All the oil bar a smear drained out, and from that size hole it comes out as a stream that's easy to catch.
For my second boat, I bought a Pela.

Another tip is to find a deep plastic tray that fits neatly under the engine. I think mine was intended for cat litter.

 

[superheat6k]

+1 for the Pela or similar. Tip: do not allow the end of the stiff tube to flick as it is removed from the dipstick tube. It is amazing just how many drips of oil form and just how widely they spread, especially across a beige saloon carpet !

My engines hold about 18 - 20 litres and I can remove about 16 with the Pela, plus another litre or so from the filter casings. If the oil is warm most of the rubbish will be in suspension, and with an oil change every season the oil is barely used anyway, so I don't worry about the couple of litres left behind, this us simply diluted out with the new fill.