Using a vacuum pump to change the oil.

[Robert Elise]

motco said:

Dyl said:

I was going to try my luck and pick one of these up today if they aren't all gone, but just a thought...

If these are powered from the battery, on an engine that you can't turn over, and take ~20mins to extract 4 litres, is this not just going to drain the battery? Its a genuine question, I know you can run the radio without turning over for a few hours but I would imagine that this took a bit more juice.

My thoughts exactly. I use a 12v compressor sometimes and they suck a fair current. In fact they're much more effective if you run the engine while they're pumping so they get a decent voltage. Not an option here though... A spare battery is the best answer of course.

i use the £25 one from Amazon. rated at 5amps and takes a few minutes to suck 5litres.
so it's similar to a compressor for amperage and time in use.
The Lidl one sounds too weak.
With longer OCIs i'm just happy with a quick siphon in between a full oil & filter change.

[motco]

For the benefit of those in the area, High Wycombe Lidl have no stock of them.

[S5PJV]

A guy at work recommended this one to me, yes it's not cheap, but the flow rates are so much quicker and the build quality looks like it'll last forever.
http://www.axminster.co.uk/proxxon-ap-12-universal...

[Mr2Mike]

Arnage14 said:

Oh dear....keep your hair on. Do you have to be personally rude? Are you like that in real life, assuming of course you have one?

I have an extremely low tolerance to people who firmly believe they know everything, but very clearly do not. It's one of my (no doubt numerous) character flaws. And yes, I'd happily call out a bullstter in "real life".

[mybrainhurts]

Bought a Lidl one to try, but I've been using a manual Pela one for a couple of years on our Volvo V70s.

I believe the latest V70s don't have a dipstick.

Anyone have experience of cars with no dipstick? Wondering if there's a sensor that can be disconnected in order to get a pump tube inserted.

[AdeTuono]

Just thought I'd put some pics up. In the interest of all things PH, I sacrificed the day (well, 1/2 hour) to put Arnage14's mind to rest.

Insert tube



Create vacuum and wait for oil to be sucked out



Normally, that's it, but...

Remove sump plug to check for shrapnel/debris/bits of piston/bearing/valves;



Nope. Nothing.

Measure residual oil that just can't be removed using a pump.



Looks like a recipe for ruining an engine. Thank God I removed the plug...

So, verdict (as if we didn't already know. I mean, if it's OK for marine engines....)

Can't see a problem, really. Carry on...

[Arnage14]

Conclusive
I would never do that even if I had no tools or jack and was wearing a dinner jacket and rolex and had to undo the sump plug with my teeth while holding the car up with my back.
....and a lit firework on a 15 minute fuse up my jacksie.

Edited by Arnage14 on Tuesday 24th February 20:34

Edited by Arnage14 on Tuesday 24th February 20:36

[mybrainhurts]

AdeTuono said:

Measure residual oil that just can't be removed using a pump.



Looks like a recipe for ruining an engine. Thank God I removed the plug...

So, verdict (as if we didn't already know. I mean, if it's OK for marine engines....)

Can't see a problem, really. Carry on...

And what of those here who did the same thing and found no oil remaining?

Your test isn't conclusive on the following grounds..

(1) We don't know if you inserted the tube far enough. Did you measure it against the dipstick?

(2) If it doesn't work with that car, it doesn't mean it's ineffective with all cars.

[AdeTuono]

mybrainhurts said:

And what of those here who did the same thing and found no oil remaining?

Your test isn't conclusive on the following grounds..

(1) We don't know if you inserted the tube far enough. Did you measure it against the dipstick?

(2) If it doesn't work with that car, it doesn't mean it's ineffective with all cars.

For the avoidance of doubt, I was taking the piss!

There was barely an egg-cup full, and that took ages to drain out. I've no doubt that I've left more in during past oil-changes purely because I've put the plug back in when the main torrent has reduced to a trickle.

I love the Pela, and will continue to use it on all my cars.

[mybrainhurts]

AdeTuono said:

mybrainhurts said:

And what of those here who did the same thing and found no oil remaining?

Your test isn't conclusive on the following grounds..

(1) We don't know if you inserted the tube far enough. Did you measure it against the dipstick?

(2) If it doesn't work with that car, it doesn't mean it's ineffective with all cars.

For the avoidance of doubt, I was taking the piss!

There was barely an egg-cup full, and that took ages to drain out. I've no doubt that I've left more in during past oil-changes purely because I've put the plug back in when the main torrent has reduced to a trickle.

I love the Pela, and will continue to use it on all my cars.

I appear to have lost my parrot, Do you know where I might find one...?

[Arnage14]

AdeTuono said:

For the avoidance of doubt, I was taking the piss!

I wasn't, I'm lubing up ready now....

[liner33]

Depending on the car might always be worth running one wheel up on a block of wood to help get that bit extra out

[mybrainhurts]

liner33 said:

Depending on the car might always be worth running one wheel up on a block of wood to help get that bit extra out

Might trap some higher up...

Better to turn it over and give it a good shake....

[buzzer]

You guys are missing the point.... You should be using flushing oil as well....

[liner33]

No reason why you can't but my oil rarely even gets dirty as I change it so often

[Rincewind209]

buzzer said:

You guys are missing the point.... You should be using flushing oil as well....

If you want, run it for 100 miles and change again. I don't but I change every 5000 miles and to be honest it only ever gets slightly darker than it went in. With a pump I like changing the oil it's so easy.

[AdeTuono]

buzzer said:

You guys are missing the point.... You should be using flushing oil as well....

Really? I did this once in the 70's when I had a sticky hydraulic valve lifter, but with modern oils I can't recall any manufacturer listing it as a service requirement, or any dealer ever carrying out a flush. I'm sure if they thought they'd get away with it, they would. And I don't recall seeing flushing oil on the shelves of motor-factors in any quantity.

Does anyone do this?

[buzzer]

AdeTuono said:

buzzer said:

You guys are missing the point.... You should be using flushing oil as well....

Really? I did this once in the 70's when I had a sticky hydraulic valve lifter, but with modern oils I can't recall any manufacturer listing it as a service requirement, or any dealer ever carrying out a flush. I'm sure if they thought they'd get away with it, they would. And I don't recall seeing flushing oil on the shelves of motor-factors in any quantity.

Does anyone do this?

Sorry, I was being sarcastic to all who keep saying getting the last spoonful of oil out is important, along with draining out the swarf and debris that will be in the sump...

[anonymous-user]

buzzer said:

AdeTuono said:

buzzer said:

You guys are missing the point.... You should be using flushing oil as well....

Really? I did this once in the 70's when I had a sticky hydraulic valve lifter, but with modern oils I can't recall any manufacturer listing it as a service requirement, or any dealer ever carrying out a flush. I'm sure if they thought they'd get away with it, they would. And I don't recall seeing flushing oil on the shelves of motor-factors in any quantity.

Does anyone do this?

Sorry, I was being sarcastic to all who keep saying getting the last spoonful of oil out is important, along with draining out the swarf and debris that will be in the sump...

I just don't get it, you can leave all the swarf, debris and bits of dead mouse drain out while you change your points. Don't forget the rule of 9 when you're checking your valve clearances either.

[J4CKO]

mybrainhurts said:

AdeTuono said:

Measure residual oil that just can't be removed using a pump.



Looks like a recipe for ruining an engine. Thank God I removed the plug...

So, verdict (as if we didn't already know. I mean, if it's OK for marine engines....)

Can't see a problem, really. Carry on...

And what of those here who did the same thing and found no oil remaining?

Your test isn't conclusive on the following grounds..

(1) We don't know if you inserted the tube far enough. Did you measure it against the dipstick?

(2) If it doesn't work with that car, it doesn't mean it's ineffective with all cars.

Cant believe nobody mentioned the Moose !

Nah sod those extractors, been fine removing sump plugs since 1988, sure they work but dont need another piece of equipment.