OT How to flush a 5hp mercury boat motor

Bob
You should be able to get a pair of rubber "ears" that connect directly over the water inlets and you connect a hose to it and run the motor to flush it. I've done this on every outboard from 15HP to 225Hp successfully. You could attach it to your trailer or caravan draw bar to start it I would think .

Gday Bob,there is a screw just beside the g/box filler plug on my 6,it`s painted the same as the motor,remove it and screw a Merc flush connector in, join up hose,turn on water,start motor,easy,I use it all the time,reverse sequence when finished.I dont think it would be easily damaged.Very handy when travelling and simple to use ,better than the ear muff type.Good luck.Keith C.

Hi. I thought with the smaller motors you could purchase a flushing plate that attaches to the underside of the gearcase covering the water pickup. You then connect a hose and run the motor in neutral with water tap turned on. I also put m.a.c.s through mine after a couple of hours running to help resist corrosion.(It stands for Marine Anti Corrosion System) It is used extensively up in the Northwest where they have a high salt content in the sea water. It is available from good marine outlets and accessory stores. Regards, Bob.

Bob,The connector is a small brass thread with a click on hose doover attatched,you don`t even need a spanner,simply tighten by hand.Before you replace the plug after flushing,give the thread a drop of oil,I`ve never had any probs. Keith C.

Boo Boo,

I have a 4hp 4 stroke Mariner and a 15hp 2 stroke Merc and the "ears" fit over the water inlets, which are on the side of the lower shaft housing, on both outboards.

Give the "ears" a go seeing you already have them and providing you see water being expelled from the outlet, you are flushing OK.

Bill.

Hi Bob
I just use a 20 litre bucket, one of those white plastic heavy duty ones to flush my 4hp evinrude . It is is light enough just to sit in the bucket and hold it by hand to start and run it.
The bucket also comes in the boat as well for carrying fishing gear etc, so it is not a storage problem.

Rob.