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    replace Mercruiser 2.5L 1989 with Mercruiser 3.0 1994

    Today I bought a Mercruiser 3.0 1994. All cylinders pressure are higher than 145. I will remove old 2.5L and mount 3.0, then connect 3.0 to the old wires.is it easy? But I have found there are different between 3.0 and 2.5. Can anyone help me to upgrade?
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    Mercruiser 2.5 or 3.0 winterization

    I saw a video pour anti freezen water into engine through hose and without drain it out. Should I drain it out ?
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    1999 90HP Merury 2 stroke outboard winterization

    What is the steps for the steps of winterization? Should I put the antifreeze into the engine? Thank you
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    going to buy a used mercruiser

    I am going to buy a used 1989 2.5L mercruiser. He said the fuel pump is weak. But the cylinder pressure are about 140~145psi. I will run it with water to check if there is any water leaking into oil or not. What other should I pay attention? Does pressure good mean good motor or not? Thank you
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    a boat

    this afternoon I went and checked a boat, year is 1998 and Mercruiser 3.0L. He started the motor without water and then stopped the engine. The cylinder pressure are 130,125,120,120. The engine oil is brand new. Also I found that the motor seemed not run smoothly while pressure testing when he...
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    1989 Mercruiser 2.5L 120HP motor overheating trouble shooting

    My boat cylinder pressure are down in recently years. now only 120,100,100,80. But it run great about 30 Mile at the beginning in the water and later it slow down in the end about 8 mile per hour. But The second day it recovers. Could somebody help me to do the trouble shooting? 1) I will...
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    what should I check for buying an old mecruiser boat

    The owner told me following 18 foot 1989 Cadorette bowrider with 4.3 Mercruiser inboard/outboard and trailer. Cylinders compression about 120PSI. I have some experience to install outdrive,oil change, below mount. thank you
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    My 2015 grand dodge grand 's towing capacity

    My 2015 grand dodge grand 's towing capacity is 3600lb. Is it possible to buy a 2900lb boat? Should I consider the weight of trailer and passengers while running? What is the difference between existing brake and without brake for the trailer? Thank you a lot of
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    exhaust bellow off again

    Last friday my boat had the maxium speed of 33m and yesterday it run very slow only 9m and I found the engine side of exhaust bellow was off and the outdrive side is still good. It seemed I lifted the outdrive too high. How can I adjust the trim limit & sender to make the outdrive not to be...
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    tricks to push outdrive in

    Today I tried to mount outdrive. but what a pity the outdrive was stuck. Sometime it is very difficult to puth Mercruiser outdrive in. sometime it is easy. any tricks?
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    What reason causes the water leaking into gimbal bearing house?

    My boat engine is Mercruiser alpha one gen 1, 1989,120HP,2.0L. Last time I found some water leaking into gimbal bearing house. After I did the seal of gimbal bearing bellow and exhaust bellow and lower shift cable. In the past 2 weeks it run faster at the beginning into water, after 8 hous' in...
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    Which engine oil can I add?

    I have different engine oil at my home and I need to add a little into my engine. What a pity I forgot which was added into my engine last winter. Is quicksilver gear lube part no. 92-8m0078634 the same 92-8m0078635 and how about 92-8m0078636? somebody told me engine will get into trouble if...
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    How can I troubleshoot the wrong trailer light

    The two trailer lights flash when I turn on the left turn light. But it works normal when I turn on the right turn light.
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    Power tilt failed to pull the outdrive up

    Yesterday I found that my power tilt failed to push my outdrive up. But it can make the outdrive down. Which part should be replaced? My engine is Mercruiser 2.5L,120HP, year is 1989. Thank you
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    Mercruiser 4.3L lift points

    I only find one handler for mercruiser 4.3L 185HP, Where are other handlers? I am going to do the coupler maintenance and need pull the engine out.
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    Mercrsuiser 185HP, Unkown Serial No.

    Today I damaged the exhaust tube and bellows because of the lack of water. But the cylinders' pressure are still good. They are 140,140,140,130,130,140. How can I know the exhaust tube part No. and exhaust bellow Part No.? I have noticed the tube Part No. is 32-90949-001
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    minn kota trolling motor part

    I have two Minn Kota trolling motor and the model is Maxxum. But I cannot identify the serial No and also I do not know what year they are First one is the steering cable is broken. Second one has broken parts and I do not know what part it is. I'd like to know what part I should buy for...
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    My boat run slowly. 120HP,2.5L,1989

    My engine can run with maximum speed of 33 miles a week ago. But it run rough with maxinum speed of less than 10 miles yesterday. What happened my engine?
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    gimbal bearing house hit by trailer while emergent braking before red light.

    See attached video. Can it be fixed? Is it big project?
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    Mercruiser Spark plug broken

    Today I tried to do the cylinder pressure testing and usded the 15mm socket and failed, the head of spark was broken. To ensure the spark can be get out, what kind of socket should be applied. Really I cannot find the serial No. and I only can know it is 185hp. also what kind of manual should I...
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