Location of drain plugs on 2006 4.3l Merc

[chaparral442]

Where are the drain plugs on a 2006 4.3L Mercruiser Carb engine?

I found 3 blue petcock drains- removed and drained --are there others?

And I presume I leave them out until after winter?

 

[Bondo]

Re: Location of drain plugs on 2006 4.3l Merc

Ayuh,...

There should be atleast 4,...

1 each side down low about midway along the bottom of the motor's Block....
And,..
1 each side on the bottom of the Manifolds.....

I also drain the P/S Cooler,+ Pull the Big hose off the circulating waterpump.....
I throw the Plugs onto the Intake manifold til Spring....

 

[chaparral442]

Re: Location of drain plugs on 2006 4.3l Merc

I found 5- one on each side of the block above oil pan, one underneath each riser, and one in the front that drains the pump and water hoses-

drained, trouble light in the dog house and good to go

 

[rktktpaul]

Re: Location of drain plugs on 2006 4.3l Merc

I missed the 2 on the block. I added -50 degree RV antifreeze through the thermostat opening, and it took about a gallon.

We had -10 degrees here in Chicago last week; how much trouble am I in??