removing thermostat

[Nason]

Is it better to leave the thermostat or to remove it if running motor high on transom and turning between 6500 to 7000 rpms?

[sheuninck]

120 degrees is to avoid salt buildup. prime temperature is hotter 180+

[88workcar]

A cold engine will wear it self out.

[BRzuki]

88, what do you mean a cold engine will wear itself out?

Where can I find a hotter thermostat for a 40 merc?

[sheuninck]

i found an automotive one that fit the omc

[calvin]

Which auto therm is that?

[sheuninck]

actually i cannot remember which one it was. this was back in the lat 80s. i do remember opening a few boxes at the auto store to find one that matched the diameter and depth for the 49ci omc.

[88workcar]

88, what do you mean a cold engine will wear itself out?

Where can I find a hotter thermostat for a 40 merc?

All I know is that the fishermen here that pull the stats wear a motor out way faster than those that don't. A motor has to be at temp to make power. I run 1 1/2" above the bottom, with a factory stat.

[Fastjeff57]

Running at low speed, as the fishermen tend to do with all that trolling, keeps the motor too cold. That damages the pistons/ rings/ walls/ etc. Hard running keeps her warm enough to avoid that.

Jeff