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    140hp 3.0 spark plugs

    Hello, Going to do new- wires, cap, rotor & plugs on a 1984, 3.0 140hp. Current plugs in it are R43T Delco, which are 5/8", taper with non-extended tip. Is that the correct plug? If not, what is the recommended spark plug/part #, please? I tried the search feature but didn't have much luck...
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    Exhaust boot

    Is there any performance difference between a boot, compared to bellows on exhaust? Putting a quicksilver gimbal kit on a friends v-6, alpha 1 and as I disassembled, I noted it has a boot. I'd like to get this done today but he's concerned he'll loose power. I did tell him we could leave the old...
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    1986 V-6 OMC repairs.

    Hello. Have not posted for about 10 years but have been asked to help with an OMC outdrive, which I have never touched. Over the last 10 years I've worked on a number of Mercruiser units. Have not got model/ser # yet but since it's a 1986, I'll assume it's not a Cobra? The outdrive was working...
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    Alpha 1, 2 gimbal housing

    I have a 92 mercruiser outdrive that starts with 'OF....' that has some corrosion where the drive boot attaches on the gimbal housing. I have access to another gimbal that starts with 'OK.....' which according to my book is the 96-97 unit. Are the gimbal housing's compatible? Thank you. 1991...
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    Mercruiser 470

    Well, back again to pester the forum pros with probably simple question. This time I need to know, is the outdrive on a 470 the same through hull bolt pattern, size, etc. as the 4.3 on the '91 Bayliner I acquired? My 120 Mercruiser purchase fell through but I was contacted by a local who has a...
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    Early powertrain swap.

    Hi, New member poster here. Come from boating family and have worked on cars/boats for many years. Hopefully I won't have to pester with too many questions but this in relation to a 'deal' I found. I bought a very nice, used, galvanized tandem ezyloader trailer, that I thought I'd use for my...
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