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    1983 90hp on a 1986 150hp trim & swivel bracket??

    I have a now working trim unit and swivel bracket from a 1986 Mercury 150 V6. I also have a complete nice 1983 90hp I6 which of course has the older trim unit on with the non-BIA bolt pattern. My question is can I put the newer tilt/trim swivel bracket on the older I6 motor?? I think it can...
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    1986 150 powerhead fit on 1977 175 midsection?

    My Buddy fried the #5 piston on his 1977 175 #4589143. I have a 1986 150 that runs but the rest is pretty sad shape. Will the 1986 150 fit on the 1977 175 mid? I looked at the gasket part numbers and they are different numbers. Just by looks it looks like the studs are in about the same...
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    1994 70hp force water in #2, good compression.

    I am working on a 1994 or so Force 70hp. The engine runs on two cylinders #1 and #3. All three cylinders have about the same compression, about 115 on all 3. Spark is good on all 3. I put #2 on tdc and pressurized the cylinder and got about 10% leakage but nothing out the exhaust. #2 appears...
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    Black Max V6 4589143 year?

    I picked up an old Venture bass boat with a Black Max V6, The previous owner stated the motor was an 175hp engine but did not know the year. He had problems with it and the local marina said it had low compression and was bad. I bought the boat and checked the compression and it was pretty...
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    1000SS Shift Shaft??

    I bought a 1968 1000ss yesterday. I bought it pretty cheap for a project motor as it ran ok, BUT... The shifter would shift into neutral when shifted towards reverse. Otherwise it was in forward gear. I thought that maybe the selector shaft might be out of time-no big deal. After 2 hours of...
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    1984 Mec 90HP power curve vs. 115HP

    I've been working on a 90hp Merc that I bought from a guy off craigslist and have it running good now. The prop I was running on it was an ancient 48-32750-19 12 1/2"x 19p. It turns 5200 at around 35+ mph on my boat(it turned a little faster before I detuned it for todays gas...it went...
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    Ignition questions. 1984 90hp L-6

    I replaced the stator in my 90hp merc with a CDI unit. The charging coils were shorting to ground. replaced the rectifier with a CDI unit also. Anyway I was going through the link and sync procedure and lost spark on #1. I checked out the stator and trigger and it appeared to ohm out good and...
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    '82 90 l-6 ignition problems

    I recently bought a 1984 90hp Mercury from a fellow who had it at a Marine dealer and couldn't make it run right. I checked compression, it was ok all cylinders 145-150 psi(he told me #2 was low). I checked spark and #4 had no spark. I knew where a 150 was sitting in a barn so we went and got...
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