Overheating Flathead

Yes I do fill it full but I have a burp tank on it. It does not overflow.

A 50 engine has the thermostats in the goose necks. The top hoses on a 50 are smaller in diameter which could restrict the flow. They make goose necks for your engine for the 1 3/4" hoses. G.M.
 
Mike in Az. Temp gauge on the left side is the dash (elec). Mechanical on the right side reads 170 degrees. Temp on left reads max with new sending unit. It's definately the gauge. I tried the cardboard deflectors and it worked great. No more overheating, although, I believe it probably wasn't really overheating, but, just a bad gauge. Now I can order nice upper and lower deflectors. Thanks everyone for your advice.
 
G.M. I just wanted to thank you for your advice on the Forum. I got two high-flow stats from Bob Shewman and installed temporary deflectors at the radiator (upper & lower). Boy, what a difference. My 40 now runs at 170-180 all day long. Much appreciated your input. Thanks. Dick in MA (dp1743).
 
Back
Top