While my 575sci are out of the boat, has anyone installed a oil drain kit similar to this http://www.overtons.com/modperl/prod...ls.cgi?i=26163 on a pair of 575sci for easy oil changes? Can it be done ?
pros and cons ?

Thanks

My personal opinion, I hate them. 1 small rubber hose to fail and drain all the oil out your engine unknowingly while running.

Love them. I had them on my 496HOs, and it's the only way to go. Previous to that, I installed one on my HP500EFI. There are only two thread sizes; and Mercury actually sells two different kits as such. I don't remember specifics, but I bought both, and returned the one.

What I like to do is pin the bitter end of the drain hose up with a carabiner toward the front of the engine, away from the belts/pulleys, but high enough that you can always keep an eye on it. There is no pressure in the bottom of the pan, so it's not going to burst anything. As long as you don't have any sharp/rough/unfinished edges of fiberglass or metal around where the tube will be routing, you will be fine.

Back to what Unlimited JD posted...
...I don't like the idea of them being permanently attached to the drain plug so you can never see the tail end.
Keep it pinned up high as I describe. When you are ready to change oil. just fish a coat hanger up through the bilge drain, attach the end of the tail end, and fish it back out the drain plug. I've done this for 15 years with never an issue.

I installed one on my 525SC in my Pantera and they were already installed on the engines in my AT. They work great and never had any issues. I also have mine pinned up on the transom and not just banging around in the bilge.

Check your thread size. I believe you need the metric threaded ones.

I love mine. The drain plug is attached to the transome drain plug. Makes it easy and clean to change oil while on the trailer.

Will the drain hose fit through a typical drain hole ??

Yes

It's the best way to change oil too. Just pull the drains when you come home after a trip out, while the oil is still warm and dirt is still suspended.
Come back the next day, and finish your oil change.
Just remember, if you have inverted oil filters (with anti-drain back valves), poke a hole in them so they drain into the pan and out the drain tube as well.

Love the oil drain hose. I use a zip tie to keep the hose up high. Besides draining oil while on trailer by running hose through the hull, I also use while on the lift or in the water. Just connect the hose to a Jabsco type pump & bucket and pump it out. FI'll with new oil, replace filter and head back out.

Padraig

Love the oil drain hose!!