Trojan Boat Forum

Yes it’s raw water cooled from the lake. Thermostat is simple automotive 160f temp type. The 145F temp TS is priced anywhere for over $200 to the cheapest I’ve found on line is about $80. What makes them so expensive and will they likely improve cooling to the manifolds. The automotive type cost bet...

Still looking for professional advice. Is 200 F temp too hot on the exterior of the exhaust manifolds read with an IR gun. All engine details are in my previous posts.
Tks,
Slip

Moderator,
Please explain how the risers or manifolds could be plugged when as I stated, with the Thermostat removed, engine or manifolds didn’t get over 110F?
Tks,
Slip

Anyone else have input on 72 Chrysler exhaust manifold normal operating temp? See my earlier post for my engine details.
Tks,
Slip

Vabeach1234, i have a 73 Chrysler 318 in my CENTURY Resorter. What exhaust manifold temps are you finding with your IR gun.
My engine coolant temps are a rock solid 150F.
Tks,
Slip

72 Century Resorter with Chrysler 318 marine engine all stock. Replaced exhaust manifolds with good used that were pressure tested, not flow tested With new 160 F thermostat engine runs at 150f which I consider good, however the exhaust manifolds run at 200 F on my IR gun, too hot in my opinion. Rem...