Exhaust manifold discovery?

[DeepCMark58A]

This is why I do my own work, way to many shops charging big bucks for poor service !

And it takes less than 15 minutes to do correctly, and also why I alway mix antifreeze and add it till it comes out the exaust, cheap insurance.

 

[DeepCMark58A]

I have seen guys who are commercial fishermen out in my harbor with their boats....some are left out all winter, this year it was in the ice, etc, and they come out with a fresh battery, fire up the outboard and motor on. None of the nonsense that I/O owners have to go through trying to make a car engine live in a boat!

Can't handle a screw and a rudder?

 

[Lpgc]

If they drained one, they typically drain everything. Why would anyone not drain the manifolds while your down in there opening the other drains. I would be concerned with the other maintenance or lack of ! If I his was done by a dealer, I would never go back to them......

I agree if someone drains one they'll most likely drain everything. You, I and most here would drain everything but I'd bet there are others who don't often swing a spanner (wrench), hear or read they need to winterise the engine and do just that without realising they need to drain the exhausts etc? A bit of information sometimes a dangerous thing...

On mine draining the engine and draining the exhausts is about equal effort, just slide the engine cover out of the way then it's easy access to the sides of the block where the drains are, slacken them off with a socket and the block drains into the bilge. To do the exhausts it's a screwdriver or socket to slacken the hose clips and pull the pipes off.

 

[DeepCMark58A]

I always drain then add the antifreeze/water mix. A stitch in time saves 9

 

[jimmbo]

I have seen guys who are commercial fishermen out in my harbor with their boats....some are left out all winter, this year it was in the ice, etc, and they come out with a fresh battery, fire up the outboard and motor on. None of the nonsense that I/O owners have to go through trying to make a car engine live in a boat!

It is not just converted Car/Truck Engines. Any Inboard Engine, that has Raw Water Cooling, needs complete draining, and sometimes RV Antifreeze added to be sure. Even those that have a Heat Exchanger, and can run Antifreeze in the Block, still have to drain the Manifolds and Raw Water Loop

 

[jimmbo]

I agree if someone drains one they'll most likely drain everything.

A lot of 4.3 Owners have discovered the hard way, they needed to drain the Intake...

 

[Lou C]

for some reason that's a Vortec 4.3 issue only, the pre-Vortec didn't have that issue. Just pulling the bottom end of the big hose on the circulating pump would drain it. Water passage inside the manifold must have been changed in shape/size.

 

[Lpgc]

A lot of 4.3 Owners have discovered the hard way, they needed to drain the Intake...

for some reason that's a Vortec 4.3 issue only, the pre-Vortec didn't have that issue. Just pulling the bottom end of the big hose on the circulating pump would drain it. Water passage inside the manifold must have been changed in shape/size.

My friend has a boat with 4.3 Vortec, what does he need to know about the intake?

 

[Scott Danforth]

y'all know the OP has a 5.0, not a 4.3, and he admitted to not winterizing properly because his boat was on a lift, etc back in post #7 and #9 and even in Texas, temps dropped to block busting depths.

and he stated in post #7 that he put in a Quicksilver reman as good forum etiquette to close out his thread.

so from post 12 on the comments sort of diverge from the OP claiming "mea culpa"

@TXGlastron , I appologize for the group.