Mercruiser quick drain question

Jerryh3

Petty Officer 1st Class
Joined
Sep 21, 2010
Messages
325
Just ordered a new tether for the quick drain hose since mine was missing when I bought the boat. Anyone know what the shower curtain ring looking thing is for? To hold the hose up out of the bilge?
 

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ziggy

Admiral
Joined
Jun 30, 2004
Messages
7,473
Re: Mercruiser quick drain question

Anyone know what the shower curtain ring looking thing is for? To hold the hose up out of the bilge?
yep, + ya don't have to go find it in the bilge...

imho, i ditched that method of draining engine oil for one of these. the oil extractor. imho, they just work better, cleaner... to ea. his own though..;)
 
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HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: Mercruiser quick drain question

yep, + ya don't have to go find it in the bilge...

imho, i ditched that method of draining engine oil for one of these. the oil extractor. imho, they just work better, cleaner... to ea. his own though..;)


Yeah. I have the same pump......

I also didn't like the idea of fishing the hose through the drain either. (It wouldn't fit!) I didn't want to have to reach for an oily, dirty hose so I clamped mine to the port riser. I suck it out using the same vac pump! Since the hose is in the pan drain (bottom), I get it all and it comes out pretty fast (hot or cold).

I pump it about 15 times and go for the filter. By the time I swap out the filter the vac pump is sucking air!!

Works Good, and lasts a long time!!!


Rick
 

Jerryh3

Petty Officer 1st Class
Joined
Sep 21, 2010
Messages
325
Re: Mercruiser quick drain question

So you pump it out of the hose and not the dipstick tube? Is there an adapter that comes with the pump for that? The boat is lift kept so I'm not crazy about the gravity method either. I would have to rig up something to hold the catch container for the 2+ hours it takes to drain.
 

ziggy

Admiral
Joined
Jun 30, 2004
Messages
7,473
Re: Mercruiser quick drain question

So you pump it out of the hose and not the dipstick tube?
i just use it as it is. i use the tube down the dipstick tube. i don't find it particularly fast (maybe 20-30 min.), and the oil has to be warmed up for it to work at all. but. the cleanliness of it is outstanding. ya won't spill a drop. the oil is contained and ya take it to the recyclers. it's got a pour spout for clean transfer to the waste bin too.

that said. your rig may be new enough that ya got some screw threads on to the top of the dip stick tube. if this is the case. i think you will want to use the connection. ya screw your siphon pump or the likes onto it and suck away. i don't have any experience with these but others have and will hopefully chime in. if ya think ya got the screw threads. the oil extractor i pictured don't have set up for the screw threads.
 

kilowatts

Petty Officer 1st Class
Joined
Apr 3, 2009
Messages
299
Re: Mercruiser quick drain question

Hi Guys:

I'd like to throw my hat in the ring for the Ziggy method! I too had a "drain out the hole" method and ditched it in favor of the "pump through the dipstick hole" method. Warm up the engine, give it a few pumps, make coffee and it's done!

kilowatts
 

Jerryh3

Petty Officer 1st Class
Joined
Sep 21, 2010
Messages
325
Re: Mercruiser quick drain question

Yes, my dipstick has the threaded connection. That sounds like the way to go. Looks like I wasted $20 on the tether. I have a regular transfer pump but one of the self contained units looks a lot cleaner and easier.
 

HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: Mercruiser quick drain question

So you pump it out of the hose and not the dipstick tube? Is there an adapter that comes with the pump for that? .

Yeah. It's really slow using gravity and if it's cold, it takes a GOOD long time.

Some simple plumbing fittings will hook right up and you don't have to deal with an oily plastic tube crammed down into the dipstick hole....you shouldn't have to do that anyway. The dipstick tubes have threads for directly connecting to a hose and vac

I installed the pan drain when I had the engine out so it was pretty easy.

The drain hose (with the brass cap) is clamped to the riser as shown below.

Cold or hot the oil is out in 5 or 10 min.



DSCN1850.jpg
 
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