'03 Mercruiser 6.2 MPI 3 point drain system

[ranger481vs]

This engine has the 3 point drain system, which I haven't had before, but also am not fond of based on what I've been reading on how they can plug up. Planning to remove that in the future, but for now, I need to winterize with it on. I've already drained the 3 point system, lots of water came out out. I've also opened the 2 drain points each side of the block and had some water come out on one side due to blockage. Are there other drain points that I'm missing on this engine or other areas that I should be concerned with? Thank you.

 

[Scott Danforth]

you dont like the 50# of hypercomplex plumbing?

make sure the fuel pump housing drained and the exhaust manifold drained, along with the PS cooler and the large hose

 

[ranger481vs]

you dont like the 50# of hypercomplex plumbing?

make sure the fuel pump housing drained and the exhaust manifold drained, along with the PS cooler and the large hose

Thank you. Yes, forgot to mention I opened the manifolds too. Will get the fuel pump and PS cooler done. Thanks for your help!

And no, don't like that hypercomplex tubing at all, unless it was foolprooth. Can't even see where it all goes, or what I'll need to do to make everything operational again, but I'll save that headache for a future day.