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    4.3 electric fuel pump no power. Puzzled…

    Engine serial # Om346350 No power at fuel pump. Purple wire on starter stud shows 12v while cranking. As it should… Oil pressure switch received 12v while key is in run position. As it should. (Currently jumped closed with a paper clip) Still no power at the factory plug for the fuel pump...
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    3" riser spacers are raw water cooled... why?

    In the middle of some maintainance including replacing the risers. The manifolds are fresh water cooled, and I suspect I will get a couple more years out of them... My question is in regards to the 3" spacers between my manifolds and elbows. Mine have been plumbed with raw water and because of...
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    Another hose collapsing question...

    1995 mercruiser 7.4L raw water pickup through hull, with a "T" fitting right after the through hull with a garden hose threaded fitting for fresh water flushes. Years ago I had my boat on land, after a large retrofit I wanted to run the motor before it was re launched. I had to use about 200ft...
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    Bravo 2, will oil leak when pulling drive

    After draining and refilling my bravo 2 leg, I started replacing my exhaust elbows to find I have a Mia exhaust flapper. If I have to pull my drive to find this missing flapper, can I leave the oil in the leg and resivoir on the motor, or will the oil in the resivoir all drain out? I'll be...
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    OEM Mercruiser Stainless Riser Identification?

    Hi guys and gals, Hoping to get some advice here after doing some searches. -95 Mercruiser 7.4L bravo 2 leg. 1350hours. Rarely on the step. Salt water moored all year. Fresh water cooled. -no current issues, just some preventative maintenance here: I don't believe the risers and manifolds have...
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    Merc TR style Prop VS Bravo 2 Props

    Hi everyone! I did my googling but couldn't find what im after. I have a bravo 2 leg on my old 26ft command bridge with a 1995 merc 7.4L and I own a spare prop. One of my props looks to be almost flatter and larger and apparently thats a TR or a TRS prop, and my other prop looks more like a...
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    Heat Exchanger Zinc Corrosion problems. Looking for advice.

    Hey guys, I replaced my zinc in my heat exchanger for the first time about a year ago. It was fairly corroded on the outside of the plug the holds the zinc, and the zinc was pretty much gone. I could see green and white corrosion, and it had actually been leaking slightly onto my raw water pump...
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    Merc Bravo 2 Hydraulic Ram Oil Flush Help

    Hey everyone. I would like to flush the oil on my Bravo 2 leg. The Hydraulic oil for the rams that is, not the leg oil. The boat is currently in the water and I would preper to attemp this maintanance without having to pay to pull the boat. Can anybody suggest how I would go abouts doing this? I...
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    The Good old Blue, White, And yellow Honda 100's Oil Leakage Question?

    Hey everyone, Im hoping to get some help from the pro's here! I know were the serial number on the motor is, But dont know which numbers are the year. From reading posts on here, I gather its in the 80's. Its the old honda 100, 10 horse, with the white top, blue leg, and, and yellow prop. You...
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    Older Merc 454 Low Oil Pressure Alarm Sender

    I cant locate the low oil pressure alarm sender on my motor. Can anybody help me out? The alarm sounds when I start the motor, but continues to sound for almost 5 minues after. I have three guages saying my oil pressure and temp are fine. The motor is also topped up with oil. I would like to...
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