[Capn Tom]

I've got one for "me hardys"! A previous owner (#1 or #2) removed the thermostat. He ran a hose from the t-fitting that's supposed to run to the t-stat and instead ran it to the manifold. The hose also has an on-off valve in it. I assume he had overheating problems and thought this was a solution? I don't use the hose in the on position.
My engine used to run up to 160; sometimes a little higher until I acid flushed. It then started running at 110. I always flush the engine with fresh water after using it (it is raw water cooled) to get rid of any salt.
Sidenote: Last week I replaced the riser because corrosion ate right through it.
Should I leave it alone or put back in a t-stat?