Where is the "Engine Cooler"

[03Air210]

I winterized my closed cooled ZR6 over the weekend and the one engine part I could not figure out was the engine cooler. where is it?

Thanks
Todd

[skijones]

RE: Where is the "Engine Cooler"

You have a heat exchanger. Look where your raw water lines come in and follow them.

[Rick]

RE: Where is the "Engine Cooler"

The engine cooler is the heat exchanger where the raw water interacts with the closed system. As skijones says, follow the raw water lines to the tranny cooler then the engine heat exchanger.

[boatech]

RE: Where is the "Engine Cooler"

long round object with cooling sys hoses going into it usually says "NO STEP" on it.

[03Air210]

RE: Where is the "Engine Cooler"

On the list that I got from this site it had the heat exchanger and engine cooler listed as 2 different things. I drained the exchanger but I just wanted to be sure I was not missing anything else. If they are the same then great.

thanks

[TRBenj]

Re: RE: Where is the "Engine Cooler"

On the list that I got from this site it had the heat exchanger and engine cooler listed as 2 different things. I drained the exchanger but I just wanted to be sure I was not missing anything else. If they are the same then great.

thanks

Did it also mention the transmission cooler? Make sure you drain that too.

[03Air210]

RE: Re: RE: Where is the "Engine Cooler"

It did not. Where is that plug?

[CradGen2]

RE: Re: RE: Where is the "Engine Cooler"

03,

I am not sure there is a plug. I normally disconnect the front hose and let it drain. I have to say I have not done a closed system, so not completely sure they are the same. I will try to read the owner manual this evening on the 6.0 L. I think I have one at home.

[TRBenj]

Re: RE: Re: RE: Where is the "Engine Cooler"

It did not. Where is that plug?

Actually, I have no idea if you need to drain the tranny cooler or not. With a closed cooling system, the coolant may circulate through the tranny cooler instead of water. Im not familiar with the closed system at all- its worth taking a closer look at your manual and engine.

[skiinxs]

RE: Re: RE: Re: RE: Where is the "Engine Cooler"

You will need to drain the transmission cooler. Follow the inlet hose from the shutoff valve to a metal tube around 4 inches diameter and around 8 inches long. You can either remove the drain plug or just pull off the hose and angle it down to drain well. On the 6 liter you have the heat exchanger, exhaust and raw water pump to drain. I am not sure about the wakeboard boats, but the ski boats have a central location under the front of the engine with hoses from the heat exchanger and both manifolds. You can pull the plug out of the bottom of the fitting where they all come together or just pull one of the hoses off. This is REALLY handy. I didn't trust it the first few boats, but have found that this drains it really well. Don't forget to unscrew the clear bottom from the sea strainer and dump the water out, that can freeze and break as well. While it is off clean out the screen and make sure you don't lose the rubber gasket. You will also want to change the oil before winter, don't let the dirty oil with all of the corrosive contamination sit in the engine all winter long. This really is an easy engine to winterize. The block has antifreeze as well as the heater. (no more "blowing" your heater hoses!
Dave

[03Air210]

RE: Re: RE: Re: RE: Where is the "Engine Cooler"

Thanks guys, you have been a big help.

Todd

[boatech]

RE: Re: RE: Re: RE: Where is the "Engine Cooler"

you did vbox as well right?

[03Air210]

RE: Re: RE: Re: RE: Where is the "Engine Cooler"

I did pull the water drain plug on the front right side and nothing came out. Do I need to pull a hose off?