Average running temp for 225

Just a little poll to see what everyone's 225 normally runs at for temp. Mine doesn't seem to stay very consistant. I know that outside temp and rpm makes a difference, but I'm curious on average. thanks

 

180-190
with 180 t/stat

 

Mine has a 4cyl radiator w/ electric fan. The fan pushes a lot of air through the radiator and the radiator isn't plugged up. All of a sudden it started getting a little warm. (200-210) This probably is no big deal but a changed the thermostat (180*) and it did nothing. My new water pump is coming in tommorrow morning. After that and I new radiator cap I'm hoping the prob will be solved. My buddy's 225 has a hard time hitting 180*, thats what made me wonder.

 

I run the 4 cyl radiator and 7 blade steel fan
it has gone higher, under load, towing trailer, but I would say 190 is about average for me

 

My electric fans come on at 210 and shut off at 195. I run a 195 t/stat.











I know it's a Chevy, but it still is a V-6.

 

My best friends runs around 180-200, as Jim said on his it runs around 190 on average pushes 210-215 run hard on the trail with a 16 inch pusher fan up front.
This is also with the bigger V6 radiator.

 

Mine always ran cold. It struggled to break 160. That was with a 180 stat, a 4 cyl radiator, and the stock 4 blade fan. I tried different stats to get it to run hotter, but it just wouldn't. The gauge was accurate too.. Yet another modern day mystery.
My 283 runs about 175 cruising and 180-190 wheeling. That's with a custom built 3 row radiator, 180 stat, 15" flex fan, and a 3000cfm electric pusher fan.

 

I put on a new water pump and radiator cap (old one cracked) today. Fired it up and everything seemed fine. I took off down the road and the same problem happened around 3200 rpm in 4th gear (t18). It started spitting and blowing antifreeze everywhere under the hood. Fluid levels were good and nothing was leaking. It started boiling and blew out the overflow. The thermostat has about 10 miles on it and the radiator is clean. What else could this be to start so suddenly? Oil looks fine. I have checked every component of the cooling system. It used to run around 190 like everyone else has said. Not much fun on my first day off in 6 months. Any ideas??????? Anyone

 

if you fill the radiator completely full to the bottom of the neck, it will push water out due to expansion once warm. Without a recovery bottle, it goes everywhere. it may push enough out that the coolant is now about 1"-2" below the neck opening; this would be normal.
If you have refilled, I would lower the coolant to that level to start.
Re-start engine, let idle with cap off, let it come up to temp, and see what it does. If you have a pocket thermo, stick it in the coolant and see what the temp is.
With eye protection in place, raise the engine to fast idle, maybe 1500 RPM. Watch the coolant flow thru the radiator as the t/stat opens and closes; you should be able to observe this.
could you have had an air pocket somewhere ?

 

The first time it got hot today I passed a big air bubble. I let it run with the cap off quite a while when I first put fluid back in. It won't get hot at idle, just top end. It is in a friend's shop right now. I may try the thermometer in the antifreeze tommorrow. I sort of got burned out for today. Just seems strange that everything was fine and after replacing everything but the radiator nothing is any better.

 

even thought the rad tubes are not clogged, and the coolant can circulate, if mineral deposits are built up inside the tanks and the tubes, the heat can't transfer properly/efficiently.
the deposits act like an insulator so the heat never transfers to the tubes and the coolant stays hot
another wildshot....
at 3200 rpm in 4th (what axle ratio you got, 4th is 1:1) the coolant could be moving so fast, that once again, heat transfer can not occur.
but that's a longshot

 

I thought about that (5.38's). It never did this before at that rpm is what bothers me. I just feel like there is something wrong somewhere.

 

how about a blown head gasket?

 

I have looked around and there is nothing obvious on the outside. I suppose it could have blown somewhere I can't see or be cracked. There didn't seem to be any antifreeze in the oil.

 

mine runs 210-220. plan on replacing the thermostat with a 180* in the near future.

 

It sounds like you're getting an air pocket behind the thermostat... I had almost the exact same problem with the '54 Chevy 235 in my '49 p/u. The air pocket insulates the thermostat from the hot water, so it never opens. The water in the block boils and expands and will flow backwards out of the block. In my case, it kept blowing the bottom radiator hose off. All I needed to do was drill an 1/8" hole in the thermostat (the thin flat metal part) to let the air escape. No more problem!

 

mine runs at 200 to 220 normal, 228 under big load. But I'm injected and turboed so big differance