How To Replace A Thermostat On A 5 0l Mercruiser Mpi My Boat Diy Steve bull shows us how to replace the thermostat on a mercruiser 5.0l mpi engine. bingo bango! subscribe to our channel to catch the latest uploads . Replacing the engine cooling system thermostat on a 2007 mercruiser 5.0l mpi engine on a 35' boat. part is mercury marine quicksilver 807252q 5boat engine ov.
How To Install Mercruiser 4 3 Thermostat Assembly With My In this classic diy segment, mike gridley shows us how to change the thermostat in your boat, an often overlooked piece of boat maintenance, that should be d. Joined. aug 31, 2004. messages. 62,321. sep 25, 2004. #2. re: mercruiser 5.0 thermostat. don't worry about a thermostat, what you need to change is the raw water pump impeller. most boaters never have to change a thermostat, but all have to change the impeller within 2 to 5 years depending on the age of the boat, not the hours of the engine. It is essentially a pressure release valve, designed to bleed off some of the water pressure at high rpms. it is very simple, and consists of a spring that is seated in the top housing (underneath the belt routing sticker) that presses a plastic "piston" (#15) down onto a seating surface: in my case, the assembly wasn't exactly "stuck open. The thermostat housing sits on top of the intake manifold. you can remove it with the hoses hooked up to it, but often times it is easier and gives you more room to work (more room to scrape off the old gasket) to pull the hoses off first. here is a picture of the assembly.
How To Replace The Thermostat On A Mercruiser 260 Bass Boat It is essentially a pressure release valve, designed to bleed off some of the water pressure at high rpms. it is very simple, and consists of a spring that is seated in the top housing (underneath the belt routing sticker) that presses a plastic "piston" (#15) down onto a seating surface: in my case, the assembly wasn't exactly "stuck open. The thermostat housing sits on top of the intake manifold. you can remove it with the hoses hooked up to it, but often times it is easier and gives you more room to work (more room to scrape off the old gasket) to pull the hoses off first. here is a picture of the assembly. Mechanic's assistant chat. customer: i have a 5.0l mercruiser. a few minutes after starting the engine, the water from the thermostat housing to the engine water circulating pump, and the starboard manifold becomes very hot, the water to the port manifold remains cool. the manifolds and elbows have been replaced very recently. Replacing a mercruiser thermostat is usually a straight forward job of removing the cover, themerostat and gaskets. sometimes corrosion inside the themrostat housing creates a bigger job where the whole housing has to be replaced. mercruiser thermostat manifold diagrams, thermostat replacement parts, and mercruiser repair manuals.
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