Mercruiser 4.3 thermostat

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Mercruiser 4.3 thermostat

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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.

Mercruiser 4.3 thermostat

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Have Questions? Product Details. Log in. My thermostat was installed below gasket marked 8. A claim will be filed and we will send out the identical part. Large Image Printable Version. Instead you are supposed to bolt that water manifold to the intake manifold and then slide the thermostat down into that water manifold followed by the plastic spacer piece and then put the plate on top. You must log in or register to reply here. I now have it in the correct position per that diagram. Then tonight I was looking at some exploded view diagrams and it seems like the thermostat does not sit directly in the lower intake manifold of the engine. Then your cooling system might work. Don S Honorary Moderator Emeritus. You do have a raw water cooling system and you need a ? Bond-o said:. Read More.

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Search titles only. MalcolmV8 Petty Officer 3rd Class. I understand, I read yer other post, Then as soon as the engine would rev the impeller would pump up lake water with some volume and almost immediately you'd see the temp gauge drop cold since it was flowing over the top of the thermostat directly onto the temp sensor. If parts are damaged in shipment and the customer does not notice damage, please call Michigan Motorz, LLC. Canadian Shipments Rates for Standard service to and from Canada do not include charges for customs clearance. I removed it and exchanged it for a new one. If parts arrive damaged in shipment, it is the customer's responsibility to notify the carrier immediately and reject the damaged package. MalcolmV8 said:. If you get on the gas it swings to cold in about 3 seconds flat. Contact Michigan Motorz of the potential damage. Mercruiser 4.