Using a vacuum pump to change the oil.
Discussion
DrDoofenshmirtz said:
I think it depends on the car really.
If you need to get under it to unscrew the oil filter, then you may as well remove the drain plug while you're there.
Indeed.If you need to get under it to unscrew the oil filter, then you may as well remove the drain plug while you're there.
DrDoofenshmirtz said:
If the oil filter is easily accessible, and the drain plug is hidden above a plastic sump guard, then a pump is an ideal solution.
There's also the benefit of having a good look around for other problems, whilst the undertray's off. Plus, those saying "Well, boat people do it" - yes, but think about the logistics of a sump drain in the bottom of a boat...RedAlfa said:
I hope you don't pour used engine oil down the drain. Used engine oil is highly carcinogenic.... long term exposure or ingestion can cause cancer
No - that's definitely the place the council recommend it to go. Because it's carcinogenic, it kills the rats, and makes the solids run easier.......I did my 2.0tdci ford galaxy last week using a 12v pump sucking out the dipstick tube. Took about 10mins to get just under 5 litres out, Inc taking the filter housing off and sucking from there too. Took the sump plug off too and got maybe another 150ml out. Not enough to matter I'd have thought. Next time I'll just use the pump I think.
They are handy though, also used it to change the power steering fluid, drain the fuel filter housing then apply negative pressure to the fuel filter housing to remove air bubbles.
They are handy though, also used it to change the power steering fluid, drain the fuel filter housing then apply negative pressure to the fuel filter housing to remove air bubbles.
RedAlfa said:
dme123 said:
.... when you're emptying the used oil down the drain.
I hope you don't pour used engine oil down the drain. Used engine oil is highly carcinogenic.... long term exposure or ingestion can cause cancer I used a Pela 6000 on a couple of cars for oil changes and found it to be effective. The most important thing is to make sure that the mouth of the extraction hose is at the bottom of the sump, especially if said sump has an irregular shape.
I also tried changing ATF with it once, but it did not reach fully into the pan, so I had to do it in 2-litre increments with a short drive in between to mix the new and old fluid. The downside to using it on automatic transmissions though is that if you want to change the strainer the pan has to come off anyway.
We've a 42 year old Rolls Royce Diesel engine at work as part of a generator set with an extraction pump fixed to the skid, and I don't think the the sump plug has ever been pulled.
I also tried changing ATF with it once, but it did not reach fully into the pan, so I had to do it in 2-litre increments with a short drive in between to mix the new and old fluid. The downside to using it on automatic transmissions though is that if you want to change the strainer the pan has to come off anyway.
We've a 42 year old Rolls Royce Diesel engine at work as part of a generator set with an extraction pump fixed to the skid, and I don't think the the sump plug has ever been pulled.
Edited by V8Ford on Monday 16th February 21:21
I was very anti
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
But then I purchased a car where the belly pan was 2mm steel and an absolute mare to re-fit
I'm not going back to sump plugging!!
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
But then I purchased a car where the belly pan was 2mm steel and an absolute mare to re-fit
I'm not going back to sump plugging!!
moustache said:
I've used a Pela one for the past 5 years on my Tdi passat. I change the oil every 5k and I've counted having done 20 or so oil changes now with it. The oil filter housing is next to the head, and I can also extract oil from that too with the extractor. My car is on 175k.
We know...DrDoofenshmirtz said:
I think it depends on the car really.
If you need to get under it to unscrew the oil filter, then you may as well remove the drain plug while you're there.
Yep, that's the case with mine. I do have a Pela extractor, but prefer to use the sump plug method. There's always some fine metal & plastic particles in the bottom of the pan afterwards, no doubt bearing & chain tensioner crumbs. With the tiny oil galleries and ultra fine metal gauzes found in modern engines, I prefer to get as much garbage out as possible. With the car jacked up, I definitely get more out of the sump via the drain than I do with the Pela on level ground.If you need to get under it to unscrew the oil filter, then you may as well remove the drain plug while you're there.
FWIW, my local VAG dealers have stopped using the extraction method and drain via the sump now, for what ever reason.
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