496 quick oil change?
 

Sucked it out the dip stik last time, Is there a quicker
way? motor is a 2002, understand there may be a
plug. couldn't get screw on pump to work, motor is
too close to back of seat. thanks for help, J.C.

This engine has a drain hose attached to the pan. Some boat manufactures have a wire connected to the drain plug that pulls the hose out the drain plug for draining. If not, then look around the top of the engine. The hose maybe laying by the valve cover and has a brass plug in the end.

Rick

Rick's correct.
All 496's come from Merc with this drain hose feature.
Look for the black hose extending out from under the oil pan or laying in the bilge...

Also, like Rick said(some mfg's)mine is attached to my bilge drain plug...When I pull that out, the oil hose comes along with it.

Open the little brass fitting and let the oil drain while you have a beer or two...I must say, that it is not the fastest method. It usually takes mine about 1/2 hour to drain when hot.

Can I do it in the water? thanks
 

Does the boat have to be on the trailer to use this feature?
Seems like it would. With gravity and all. thanks for the help.
I'm doing it this afternoon and wanted to know if I need a pump.

NO

The drain hose is tetherd(sp) directly to your bilge drain plug. If not, it should be.:eek:

rv/daze - upon delivering my 01 340 PQ, I have the Merc Installation manual for the 496HO's. Merc provided the hose and the tethered plug with the engine. Can't speak on Fountain or an 02 model, but you paid for the "whole" kit.

I just did my engines last weekend. Its real nice and I can fit a 5 gallon pail under my trailer.

ps. it takes 2.6 boat sodas to get the 12+ quarts out!:D

Thanks rv, baja daze, kentz,
 

I appreciate the response, I'll do it on the
trailer fri when I pull it out. Sounds better
than the dip stik trick. 2.6 will do it? I'm
doing the drive shower too, better have 6.
later, J.C.

:D

I have one of those drill pumps that I attach to the drain tube. It takes to long for it to drain out otherwise.

Hey Kentz - don't you mean 18 quarts! And in my opinion, there is always something else I need to do on the boat while the oil is draining out.....including a boat soda! Plus all spills now go on the ground and not in the bilge or on the rear bench.

P.S. The tethered drain plug is a Merc part cause I broke the wire on one by mistake and got a new one from them.

I found it...
 

I was out last night and the drain plug and tether were
laying on top, now I know why it came back from 20hr
service with 1 plug missing, guess they didn't put it back.
seems like a good system to me. I'll let it drain while
I'm cleaning, I believe it is 9 quarts. I did the drill last time,
Thanks J.C.

I have NEVER been able to get out the last quart or quart & 1/2. The oil cooler, lines, etc. You'll be lucky to get 7 out of it. Careful not to overfill. I always go by dipstick (boat in water) anyway.

Interesting. I guess the positive slope on the racks at Marina Shores really helps. I just did my third oil change on these motors. 9 quarts every time. That puts the oil level just a bit above the full mark on the dip stick, but it came from the factory the same way.

not so quick oil update...
 

Seems like a great system, except fountain put the bilge
pump 1.5" from the drain hole. Took 30 mins just to get it
through the hole. By then it was dark so I let it drain all
night, At least I got it all out. Put 8.5 quarts in and still a
little low. I may not try this again.

If you let the motor warm up to operating temp on the garden hose prior to draining it, the oil drains out much faster.
I've changed mine twice in 50 hours. First cold and it took all night, second time I let it warm up and only had to drain for about an hour.
I believe Mercury recommends warming the motor first.

Careful on the hose. I found very poor water flow through my risers @ idle. You could have fried bacon after 5 minutes. Several folks report you need to run these up to 1500:eek: to get decent flow.

I've switched to draining @ the ramp after pulling out.

Wish I had a drain plug feature like that, would seem to have been the right way to go even 13 years ago when Merc made my motors (pair of 454 Magnums).

For 13 years I've been using the 5 gallon bucket and pump assembly and sucking it up through the dipstick after warming the motors up to normal temp. Gets just about 7 1/2 quarts out of the 8 quarts (including filter) in the 454 Mag. Changing every 30-50 hours max. 600+ hours, never a problem. The pump and bucket take about 3 minutes to 4 minutes to drain the pan, can change both motors and filters in less than 30 minutes when I'm in a hurry.

The bucket assembly is sold by people like BoatUS, but the one I have is homemade.