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  1. 11b330i

    1987 4.3 OMC Alternator with 1 Wire Issue

    Hey all, I am in the process of putting my boat back together and when wiring everything back up, i am not sure where my ignition coil is supposed to be receiving power from. On my alternator there is only one post for the orange wire. The purple and red wires along with it were always capped...
  2. 11b330i

    Swapping Internals From Marine to Auto Block (piston rings, bore size questions, etc)

    Hey guys! So i have a boat with a cracked block. 1986 OMC 4.3 Cobra in it. It has the 2pc main rear engine. I purchased a donor 4.3 longblock from 1985 from a GM Van/Truck. The internals and everything on the donor 4.3 are shot. Would i be able to swap all my engine internals from the OEM...
  3. 11b330i

    Swapping same year Mercury powerhead from 150 EFI to a 200 EFI Questions

    So on the 93 150 EFI i picked up for 300$, the powerhead was junk. Found a powerhead from the same year for 900$ from a shop in town with the core of my old powerhead. Wondering if there is anything i should be conscious of for this swap (besides the obvious power increase). Will it bolt right...
  4. 11b330i

    Low compression on 1 Cyilder on mercury 1993 XRi 150

    So yesterday i picked up a XRi 150 with good compression on all but 1 cylinder (has 60) for 300$. Engine looks flawless and all the cylinders except the one have great compression. I took the head off that side and the piston looks all right (the eye test). He said his oil line was dry rotted...
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