Good news. She up and running!!!

Automan · #1 (**permalink**) 07-16-2007, 07:56 PM

Well, took the thermostat out and replaced it with a new 160 degree one. Drill edthree holes in it and reinstalled it after testing it on the stove. Refilling it was a breeze with the holes in the stat. Practically filled the hole system. Started it up and ran it for 11 minutes before blowing the lower rad hose off the tubing. I have two hoses connected together to cover the distance. Took the pipe to the muffler shop and had the ends flared out. Re installed it, refilled it and started it up. Temp stayed around 190 for about 18 minutes before the upper rad hose blew off this time. Yes i did it again. Took the pipe down to the muffler shop and did the upper one. Dont know why i thought the upper one would be ok. Put it all back together again and started it up. Didn't run it long this time because sdomething hit me.
I have a rad cap on the expansion tank that has 13 lbs release. I also have a rad cap on the rad that is also 13lbs . The vent tubing from the rad is connected to the rad tubing coming out of the expansion tank. So i dont have some sort of bottle for the cooling system to vent too.
Am i on the right track. Do you all have vent bottles in your systems?

Automan

PNJSNAK · #2 (**permalink**) 07-17-2007, 05:44 AM

Automan;
I didn't like the idea of (2) radiator caps and (2) vent tubes.
I ordered a Griffin Radiator with no fill cap and (2) pet cocks, one low and one high. I also had the lower hose connection angled up a bit so I could run the hose over the steering rack more easily.
I do have the fill cap vent running to a collector and the over flow of the collector running to the bottom of the engine bay.
Jim

Sam Bozzette · #3 (**permalink**) 07-17-2007, 09:13 AM

Automan,
One of the vent tubes has to be able to vent of the extra pressure and fluid as the the heat of the engine causes expansion. What I did was put a 16 psi push type cap on the rad and put a rubber cap over the vent tube. On my upper rad hose I used an inline filler with a 13 psi push-pull cap and put the vent hose to a overflow tank. This way the expanded fluid can be caputerd in the tank and when the engine cools be sucked back in. Sam

jerry w · #4 (**permalink**) 07-17-2007, 02:22 PM

I have an overflow tank also. You need room for fluid expansion when the the engine gets hot, and to pull fluid back in to the system when the engine cools down. My setup is similatr to Jim's.

Good luck, Keep us posted