Winterizing indmar m60 415

[Flydoc]

Any chance you have some pics of where the thermostat is located? For your heater blowout, what did you use to blow it out? did you just blow it out from the spot that has the labels "To Heater" "From Heater"? Did you find the V-drive drain plug or transmission cooler? I can't seem to find them if they exist...

I think this is the tranny cooler (bottom photo cooler circled in yellow) on the driver side of the engine ( is that port?) I’m going to blow out the to and from heater lines. I haven’t the found v drive drain plug or the thermostat. I’m going to drain all the water, close the drain plugs and pour in 100% Sierra anti freeze to have a 50/50 mix which should protect yo well below the temperatures I’ll see.



Sent from my iPhone using Tapatalk

[chpthril]

100% Sierra anti freeze to have a 50/50 mix which should protect yo well below the temperatures I’ll see.

Its recommended to use environmentally friendly marine/RV type antifreeze, which is different from what would go in as an engine coolant. Just note, the marine/RV is designed to be used at 100%. Diluting could leave you unprotected.

[freeheel4life]

Sierra/Prestone does make an environmentally friendly propolyene glycol that they dye green and looks just like EG. It is branded as "LowTox". Has a cute picture of dogs and kids on the bottle. Its what Ilmor runs on their closed cooled engines. I hate that its dyed same as EG, but such is life.

[chpthril]

Interesting, because a typically street vehicle water pump (circulation pump on a boat engine) requires external lubrication, which comes from the antifreeze/coolant. I wonder if ilmore uses a sealed/permanently lubed pump like found on a fresh water cooled engine or are the rest of the ingrediants safe to dump into the environment.

[freeheel4life]

Interesting, because a typically street vehicle water pump (circulation pump on a boat engine) requires external lubrication, which comes from the antifreeze/coolant. I wonder if ilmore uses a sealed/permanently lubed pump like found on a fresh water cooled engine or are the rest of the ingrediants safe to dump into the environment.

I think its really more "safe for pets and kids" rather than "environmentally friendly".

[Jetdriver]

I think its really more "safe for pets and kids" rather than "environmentally friendly".

Good thing, that stuff is delicious!

[Flydoc]

Its recommended to use environmentally friendly marine/RV type antifreeze, which is different from what would go in as an engine coolant. Just note, the marine/RV is designed to be used at 100%. Diluting could leave you unprotected.

Sierra is not rv antifreeze just a much safer and environmentally friendly in the engine antifreeze. I add to the raw water once I've drained as much as I can. At 60/40 it protects to -64 F. Works great for me in Northern Idaho the last 20 years.

[Flydoc]

How do I drain the manifolds?

[freeheel4life]

That hose with the hose clamp not the oetikers should wrap around and join the other manifold. Pull the hose off both. If you are going to keep the boat for a while go get a male and female hose thread/barbed connector and put it in the middle of the loop sp.you can just unthread and drain in the future

[Flydoc]

Any chance you have some pics of where the thermostat is located? For your heater blowout, what did you use to blow it out? did you just blow it out from the spot that has the labels "To Heater" "From Heater"? Did you find the V-drive drain plug or transmission cooler? I can't seem to find them if they exist...

I think the thermostat housing is just in front of the heater send and return hoses. I'm an amateur so someone more knowledgeable than me can jump in. There are a total of 4 hoses meeting at it, and it separates the impeller circulated water from the engine water pump circulated water. When the thermostat is closed it separates the two systems (except I understand that it has holes in it to allow a little raw water into the engine water even while it is closed)

In the last photo the purple is heater send and return, Yellow is what I believe is the thermostat housing, blue is the exhaust.

[Flydoc]

I was going to do a video or at least a how to photo book so I can remember this every year without having to reinvent the wheel. I ran out of time and since winter is heading our way I just did it from the top of my head. Anyone have a good reference for the 13 or 14 Z3 or other indmar M60 engine?