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Old 12-08-2017, 10:37   #16
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Re: "Best" manual vacuum oil evacuator?

When I was responsible for product development at West Marine, I sourced this pump and container from a really good company in Asia. I think it's simple, relatively clean, and a good solution unless you have a drain plug on the engine pan, in which case I'd find something I could use to pull directly from the drain.

There's a larger version as well for up to 6.5 quarts.
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Old 12-08-2017, 19:41   #17
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Re: "Best" manual vacuum oil evacuator?

I use a LiquiVac on my Ford truck. Injectors are actuated by oil pressure. Upper tank doesn't drain with the rest. Works good, bigger hose. Hose has a valve, so you can pump up vacuum enough to completely drain. Comes in 2 sizes. About $60.
I plumbed in the drains on the boat. Sucking out the dipstick tube doesn't get all the oil and takes forever. I can drain 4 engines in about 2 minutes.
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Old 12-08-2017, 22:18   #18
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Re: "Best" manual vacuum oil evacuator?

Surprise that no one mentioned removing the oil filter. A way without a spill.
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Old 13-08-2017, 06:21   #19
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Re: "Best" manual vacuum oil evacuator?

I use a vacuum type, came with different hoses to extract the oil. several on the market. been using mine over five years.
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Old 13-08-2017, 16:17   #20
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Re: "Best" manual vacuum oil evacuator?

pela 6Litre gets my vote - put in the hose, pump it up, go and make a cuppa, come back, tidy up, pour in new oil. cant praise it enough.
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Old 14-08-2017, 10:25   #21
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Re: "Best" manual vacuum oil evacuator?

I'm building a drill powered oil change gear pump but that's a different animal.

I'm more answering your question about the hose you have. My Westerbeke is 1/4" NPT fitting and I can almost guarantee that's what you have since they are same company.

I used a cheapo extraction pump from Harbor Freight and made up a small fitting using a hose barb x 1/4" NPT female that simply threaded onto the hose on my engine that is secured out of the way on the metal bracket. If that's what you have it's most likely 1/4" NPT male threads.
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Old 14-08-2017, 15:06   #22
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Re: "Best" manual vacuum oil evacuator?

Quote:
Originally Posted by sailah View Post
.

I'm more answering your question about the hose you have. My Westerbeke is 1/4" NPT fitting and I can almost guarantee that's what you have since they are same company.
.

I'm guessing it's a 1/4" NPT fitting as well, but wouldn't guess it's OEM/stock. (Did they put them on at the factory in 1992?)

I would definitely prefer to extract via the hose attached to the oil pan's drain fitting as opposed to going in through the dipstick hole. I'd like to change ALL of the oil rather than just most of it. (Hence my anal-retentive previous question about diesel oil always looking black.)

I just don't wanna make a mess. I don't own any stock in a paper towel company.
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Old 14-08-2017, 15:13   #23
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Re: "Best" manual vacuum oil evacuator?

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Originally Posted by patprice View Post
Surprise that no one mentioned removing the oil filter. A way without a spill.
That was gonna be my next question!

As a mechanic, I've seen some pretty sadistic oil filter installations. Typically they're mounted horizontally and are pretty much guaranteed to make a mess. Also hard to pre-fill them to reduce oil starvation during that first start after the change.

The vertically-mounted filters are Heartbreakers. They hold out the promise of a nearly clean removal, but invariably will slip out of your hand (hot, slippery) and make an even bigger mess as they tip, bounce, and spill.

The "epic fail" award has to go to Mazda with their vertically-mounted open-end-down filter on the early RX-3's. I really think it was revenge for Nagasaki.....
(They had a standpipe inside, so even if you waited, the oil never drained out.)
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Old 14-08-2017, 15:57   #24
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Re: "Best" manual vacuum oil evacuator?

Yeah, Volvo's popular MD series installed on many production boats has a side mount filter. Impossible to remove without making at least a small mess...even after draining oil.
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Old 14-08-2017, 16:27   #25
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Re: "Best" manual vacuum oil evacuator?

gallon ziplock bag pretty close to as mess less as you can get...
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Old 14-08-2017, 16:49   #26
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Re: "Best" manual vacuum oil evacuator?

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Originally Posted by snokid View Post
gallon ziplock bag pretty close to as mess less as you can get...
Assuming you mean to remove/catch the filter in?
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Old 14-08-2017, 16:55   #27
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Re: "Best" manual vacuum oil evacuator?

Quote:
Originally Posted by Chuck Hawley View Post
When I was responsible for product development at West Marine, I sourced this pump and container from a really good company in Asia. I think it's simple, relatively clean, and a good solution unless you have a drain plug on the engine pan, in which case I'd find something I could use to pull directly from the drain.

There's a larger version as well for up to 6.5 quarts.
I have used the small and large versions of the West Marine vacuum pumps on two different boats. Very happy with the pump. Well designed and constructed. I found that the smaller pump had plenty of capacity for a Yanmar 3gm oil change.
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Old 14-08-2017, 17:46   #28
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Re: "Best" manual vacuum oil evacuator?

Quote:
Originally Posted by ValiantV View Post
Assuming you mean to remove/catch the filter in?
yes loosen the filter then slip the bag over the filter spin the rest of the way off in the bag.

Bob
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Old 14-08-2017, 18:08   #29
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Re: "Best" manual vacuum oil evacuator?

How much oil does your engine hold? I do not have an inboard engine in my boat, for the cars and trucks, not to mention the tractor and other small engines, I use the oil vacuum tank that Harbour Freight sells. It is not cheap, but can be had for around $100 when on sale. It hold over 6 gallons, and a vacuum is put on the tank by use of an air compressor. I have had mine several years, and it still works great. I did add a ball valve to the air compressor inlet to help maintain vacuum, but it is not necessary. It comes with a couple of different length, and sizes of hose. Here's a link to their product page.

https://www.harborfreight.com/6-1-4-...tor-46149.html

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