Overflow Tank question

[Excaliber]

That is the BEST setup Jim, and it will work perfectly. Some overflow tanks, like mine, simply vent or purge any excess from the tank out of the top through a vented cap. That overflow would then run all over the sides of the holding tank and spill out all around the engine compartment area and ground. I would much prefer a tank with a second hose from it's cap that directs any overflow straight to the ground.

It's important to NOT fill up your overflow tank when the system is cold because you need to leave room for expansion and additional filling of the overflow when the engine is hot.

Some folks say you should leave a little room, leave the water a little low, in the surge tank mounted on the motor. That way some expansion can occur within the engine without pushing the water out to the overflow tank.

[Archrms]

Jim,

It sound like you have the same setup I have for the overflow tank. I did the modifications as per Tim's link this past weekend. However, the setup you described by reversing the input hose to the bottom of the tank and making the top hose an overflow seems a better idea - and cleaner. Just make sure the vent hole at the top of the tank is plugged.

Also, I checked the cap on my expansion tank, and is was NOT a recovery type cap. I need to replace that next.

[patrickt]

Here you go, Ernie. This is a shot of the underside of my radiator cap that failed the Putnam Suck Test.