Mercury 150 Outboard Thermostat Location

Shop for Mercury outboard thermostats for all make and models via Outboard Spares now. Mercury 150 Temperature My 175 EFI MarinerMercury runs at about 175 degrees F at idle.

Oversee Gear Case Seal Kit 6g5 W0001 C1 00 150 175 200 225 Hp 2 Stroke 4 Stroke Replace For Yamaha Outboard Engine Motor Outboard Vehicle Parts Gears

Although being labeled the father of Mercury Outboards its interesting that Kiekhaefer actually worked as a draftsman for Evinrude outboard motors in 1927 however was fired after just 3 months employment with Evinrude.

Mercury 150 outboard thermostat location. If not using the oil injection system a 150hp Mercury outboard would require a 501 ratio. On the earlier model 150s you had 2 mechanisms for cooling. Jump to Latest Follow 1 - 9 of 9 Posts.

This is a technique used in certain OMC motors and it may not be applicable to your Mercury 150-HP BlackMax. Finding the Serial Number on a Mercury Outboard Engine. New Mercury Thermostat Kit for 135-200HP Outboards 18-3672.

But I have seen lots of people complaining about the outboard motors issues. Most 2-cyl 6 - 25 HP-- 18-3549. A thermostat is a valve in the outboards cooling system that opens or closes depending on temperature.

The pressure will get lower and lower and as you drop off plane you will notice. 206 kg and Up Trim Method. Thermostat 60º C 140 F.

Well can you show us how to change the thermostat. 8 valve single overhead cam SOHC Inline 4 Bore x Stroke. When the throttle is advanced the flow of cooling water is increased.

Before you pay hundreds of dollars to change out the thermostats on your Mercury I have included photos of changing mine and the problems on the starboard side. We are Australian owned and operated and supply aftermarket outboard spare parts to the recreational and commercial boating industry. Smart Start Electric Shaft Length.

18-3541 19300-ZY3-023 3NV010300M 3R3010300 3SA010300 6G8-12411-00-00 6G8-12411-01-00 6G8-12411-02-00 6G8-12411-03-00 66M-12411-00-00 66M-12411-01-00 825212 825212A1 825212T02 825212001 855676 855676A1 855676003. This is roughly one pint of 2 cycle oil to six gallons of fuel. Quicksilver 816296Q2 Marine Engine in-Line Fuel Filter with Barbs for 516-Inch 8 mm Fuel Lines.

Photo 1 shows the thermostat and the loosened bolt hitting the fuel line photo 2 thermostat with fuel rail bolts and picture 3 close up of fuel rail bolt and thermostat photo 4 is definitely what you do not want to take completely. The thermostats are located under the covers at the top of the cylinder heads. There are lots of good features and specs of it.

Diagnosing a Failed Outboard Thermostat. What does a 1991 mercury 150 outboard weigh Do you need to jack up the engine to change the thermostat in a Mercury Villager. Put the thermostat in a bowl and immerse it in boiling water.

Ships from and sold by Boating Accessories. 30 40 2-Cylinder. None use Kit 855676A1.

Mariner Thermostats Kits. Removing thermostat from Mercury outboard question. I have had a lot of problems with the thermostat clogging up with what I believe is pieces of sargassum weed and causing the engine to overheat on.

Offering discount prices on OEM Mercury Marine parts for over 50 years. 25 HP Sea Pro. They are part 9 in this diagram.

By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Kiekhaefer had 3 unique qualities that made him less than the ideal employee 1 He had a keen eye to see inherent flaws in mechanical designs 2 He often fixated and worked tirelessly trying. First thing just pop the cowling off set it aside and on this model theres a flywheel cover it pops right off and on the 150s Yamaha F-150 four-stroke outboard its located right here on the side.

When the thermostat is closed it prevents the flow of cooling water passing through the outboard thus increasing the motors operating temperature. Joined May 22 2005 487 Posts. 40 x 36 in.

Remove the thermostat from the motor. Mercury 150 thermostat location. It drops to approximately 145 degrees F at any RPM above 2000 actual temperature depends on the sea temp.

As the thermostat heats up it. 102 x 92 mm Displacement. As you drop off plane the reverse will occur.

There is a hose that runs between these 2 covers. You can research the market but you cant find any lighter outboard motor in the 150HP direct 4-stroke category. The thermostat which controls block temperature at around 140-160F when operating below 2500 rpm and a high water pressure relief poppet that is forced off its seat by the increased water pressure above 2500 serv.

Find Thermostat 143 Degrees - 833072003 here. 30 HP 2-Cylinder Mercury Mariner. Mercury 150 EFIDropping Temp High RPM On Plane Posted.

As the temperature rises the thermostat opens and allows coolant to flow through the outboard. T-stat in Upper Left of Exhaust Cover. Description 2022 Mercury FourStroke 150 HP - 20 in.

Have changed the water pump recently. The housing for each tstat are located at the top of each cylinder head right above the 1 and 2 spark plugs. 6 days ago Jan 26 2014 The slight drop is your poppet valve opening.

In a Mercury the thermostats are controlling the idle temperature. I need to locate the thermostat for my mercury blackmax 150 outboard motor - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. Some outboards such as Yamaha V MAX models have two thermostats in which case you would remove them both.

So I have listed the most common problems with Mercury Optimax 150 to help you solve yours. Manual number which is a larger diameter valve and is not temperature controlled allowing. There is also a possibility that there are other restrictions in the cooling system which are reducing the flow of cooling water.

Discussion Starter 1 Jul 20 2012. 25 HP Sea Pro. To 16 deg max.

5 In Stock - Ships Immediately. If playback doesnt begin shortly try. 1983 MERCURY 200 HP BLACK MAX THERMOSTAT LOCATION.

Many 25 - 50 HP 4-Stroke.

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