Drain exhaust manifold

[Wyomingman]

I have a 2002 Mecruiser 4.3 MPI sith single point drain. i have winterized and filled the block with anti freeze through the thermostat housing. I did not frain the manifolds as I followed the hose that comes out the bottom of the manifold down to where the single point drain empties.

My question is does the single point drain system drain the exhaust manifold to? I know about checking for blockeges.

 

[dubs283]

Re: Drain exhaust manifold

the single point drain system drains the cooling system including the manifolds

take a look for any other blue plugs on engine components and pull those as well