Winterizing 496 or 496HO or 496Mag
#4
Charter Member #415
Charter Member
Join Date: Nov 2000
Location: Jasper,Alabama
Posts: 3,357
Likes: 0
Received 0 Likes
on
0 Posts
Re: winterising 496
Unclip the blue hand pump,attach to the air valve,pump a few strokes and the little pin will pop up,you will hear the water running out. Piece of cake.
#5
Registered
Join Date: Mar 2002
Location: LONG ISLAND-NY
Posts: 1,335
Likes: 0
Received 0 Likes
on
0 Posts
Re: winterising 496
Originally Posted by carney
I do not have a manual and it is not my boat, helping a friend and he has no manual thought some of you could help.
#6
Re: winterising 496
Don't trust just pumping out the water by air. This comes directly from my mechanic. Do it the old fashioned way with antifreeze and a flush kit/earmuffs. Its the only sure bet, as the sea-water portion has pockets that will keep sea-water in the motor when you only use the pump. There is no thermostat on the sea-water side, so no need to warm up. Go ahead and run 5 gallons of antifreeze through the old fashioned way. If you want after that, go ahead and use the pump (or a low pressue cigarette lighter air compressor) to pump the antifreeze out.
Merc's proceedure is to just hook up the blue pump, and keep pumping until the bleeder valve starts bleeding out some air up behind the flame arrestor. Then you can pull all of the blue freeze plugs if you like, but pump FIRST, with plugs in. Before you start the motor in the spring, make sure you pull up on the bleeder valve, to release the pressure in the system, otherwise it will not fill the sea-water side with water.
Merc's proceedure is to just hook up the blue pump, and keep pumping until the bleeder valve starts bleeding out some air up behind the flame arrestor. Then you can pull all of the blue freeze plugs if you like, but pump FIRST, with plugs in. Before you start the motor in the spring, make sure you pull up on the bleeder valve, to release the pressure in the system, otherwise it will not fill the sea-water side with water.
#8
Registered
Thread Starter
Join Date: Jan 2003
Location: FINGER LAKES N.Y.
Posts: 800
Likes: 0
Received 0 Likes
on
0 Posts
Re: winterising 496
I pulled the blue plugs and used the pump , water started comming out and then I pumped and the pressure release went off. water stopped I put the plugs back and ran -50 anti freeze through the ear muff till it came out the pipes. I would think this would be fine. Then did the drive ect.
#9
Registered
Join Date: Nov 2000
Location: Grand Haven, MI USA
Posts: 3,124
Likes: 0
Received 0 Likes
on
0 Posts
Re: winterising 496
That will do it, the anti freeze is a little overkill but you cannot be too safe with these motors, the old fasion way will be turn key in the spring and you will be able to sleep at night which is worth the extra work. I always used 5 gallons of straight anti freeze also, some say 3 on a BB but that is leaving it thin.
#10
VIP Member
VIP Member
Re: winterising 496
Originally Posted by MitchStellin
That will do it, the anti freeze is a little overkill but you cannot be too safe with these motors.