Mercruiser 4.3 thermostat

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Mercruiser 4.3 thermostat

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All returns must have an RMA and invoice. Some shipments to and from certain locations may require additional time in transit. All Parts Orders need to be placed online.

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The engine provides users with dependable power and performance, but like any engine, it can come with its own set of problems. In this comprehensive post, we will delve into the most common problems encountered by Mercruiser 4. Exhaust manifold gasket leaks are a common problem for Mercruiser 4. When they fail, exhaust gases can leak into the cooling system, causing overheating and potentially damaging the engine. A boat owner must replace the faulty gaskets to solve this issue. This typically involves removing the exhaust manifolds, cleaning the gasket surfaces on both the cylinder head and manifold, and then installing new gaskets. After the repair is complete, inspect the cooling system to ensure there are no lingering issues and that the engine is running smoothly without overheating. Overheating can be another significant issue for Mercruiser 4. This problem can be caused by various reasons like faulty water pumps, leaking hoses, clogged passages, or a failed thermostat.

Mercruiser 4.3 thermostat

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I now have it in the correct position per that diagram. Buyer is responsible for return shipping costs and for sufficiently packing and insuring returned items unless otherwise agreed upon. Need some help? Log in. I'm pretty sure the degree stat is for closed cooling system and the is for raw water cooling. All returns must be made within 15 days of delivery to you. Bond-o said:. Engines are then inspected by our shipping manager before they are loaded onto a freight carrier. I pulled off this big water manifold of sorts with various hoses coming out of it off the intake manifold and there was the thermostat. Put it up where it belongs, and be sure items 7 and 9 are also there. All prices and descriptions on this site are subject to change without notice.

The Mercruiser 4.

Click to expand Check-balls are as tight as they go. Thread starter MalcolmV8 Start date Jun 24, We use different freight carriers to find you the lowest price AND safest delivery. When it would sit and idle the water from the impeller slows way down and the warmer water from the thermostat got a chance to touch the temp sensor allowing it to show normal readings. Read More. For a shipping quote, please email sales michiganmotorz. The only way to make them tighter is to get longer springs. No refunds for electronic parts if the box is opened. You must log in or register to reply here. MerCruiser Thermostat Housing, 4.