Oil pan drain hose

codykenny

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May 20, 2023
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1
I routed my hose out the bilge drain plug after warming up the engine and no oil comes out. It does connect to the bottom of the oil pan. I did use it last year to drain it but it took hours. Is there a pump that I can get to suck the oil out?
Anyone know if using the quicksilver pump on the dip stick tube gets all of the oil out or not?
 

alldodge

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I moved your comment from an old thread to a new one
 

Alumarine

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Feb 22, 2005
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Welcome.
The type of pump that removes the oil through the dipstick tube gets enough oil out that you don't have to worry about the small amount left behind.
 

Chris1956

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Mar 25, 2004
Messages
27,843
Gee, I just pulled the plug and let her drain thru the garboard drain. A couple of squirts of purple stuff cleaner and a blast with the hose cleaned up the residual oil in the bilge. No pump, no mess.
 

Bondo

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Apr 17, 2002
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70,954
I routed my hose out the bilge drain plug after warming up the engine and no oil comes out. It does connect to the bottom of the oil pan. I did use it last year to drain it but it took hours. Is there a pump that I can get to suck the oil out?
Anyone know if using the quicksilver pump on the dip stick tube gets all of the oil out or not?
Ayuh,..... Welcome Aboard,.... I bought one of these, the 7400 model years ago, 'n love it,....
 

Lou C

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Nov 10, 2002
Messages
12,654
I like the all metal Topsider MVP. I have it about 20 years and have used it for everything:
Boat inboard oil changes
Jeeps:
Suck oil out of diffs and auto trans
This saved me from a huge mess this winter when the filter on my Chrysler 545RFE clogged & the trans wouldn’t go into gear. Sucked 4 qts out of the pan before loosening it.
With any vacuum pump the plastic hoses must fit tight. I made up a garden hose adapter for it that works great on my 1988 OMC & my brothers 2020 Mercruiser.
Marine vaccum oil changer (Topsider).jpg
 
Last edited:

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,163
Gee, I just pulled the plug and let her drain thru the garboard drain. A couple of squirts of purple stuff cleaner and a blast with the hose cleaned up the residual oil in the bilge. No pump, no mess.
I used manual and electric pumps thru the dipstick for years. PITA. Then, my son bought a boat with an oil pan drain that came out the garboard drain. Wholly mackerel.....what an improvement.

No muss, no fuss, no dripped oil and much faster.

If nothing comes out, the hose is plugged. Try to snake the hose. If that doesn't work, remove the oil the hard way and then take off the hose and oil pan fitting. Clean them out and seal back up and at least you'll be ready for next year.
 

Lou C

Supreme Mariner
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Nov 10, 2002
Messages
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The key with the dipstick method is to fab up a garden hose adapter instead of shoving the small plastic hose down the dipstick. Much faster & easier. Just make sure your hoses fit tightly & you have a gasket in the female fitting of the garden hose adapter.
 

04fxdwgi25

Chief Petty Officer
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Mar 25, 2022
Messages
537
On last boat, extended that hose and connected to 12 VDC turbo charger oil used scavenger pump (about $40). Pumped out all the cold oil in under 1 minute.
 

CapriBX

Petty Officer 3rd Class
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Jul 31, 2022
Messages
75
On last boat, extended that hose and connected to 12 VDC turbo charger oil used scavenger pump (about $40). Pumped out all the cold oil in under 1 minute.
This is an interesting and ingenious idea.
 

JASinIL2006

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Feb 10, 2012
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5,673
I'd snake the hose first. Sure sounds like you have some sludge or something clogging it up.
 

JimS123

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Jul 27, 2007
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8,163
The key with the dipstick method is to fab up a garden hose adapter instead of shoving the small plastic hose down the dipstick. Much faster & easier. Just make sure your hoses fit tightly & you have a gasket in the female fitting of the garden hose adapter.
My 3 liter merc had a hose fitting on top of the dipstick. The first hand oil pump I had also had the female fitting on the hose. Yes, it was an easy hookup, but every time I used it I had drippage when it was taken apart. Personally, I found the hose in the dipstick a cleaner process.
 

Lou C

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Nov 10, 2002
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However the garden hose set up is much faster at least in my experience, having done it both ways.
 
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