Search results

  1. J

    Spark Plug Contacting Piston/Valve? 5.7

    I just pulled and replaced all 8 plugs. 2 came out perfect (not rich or lean.) 5 looked rich (black.) 1 looked rich and the ground electrode was bent almost to the point of touching the center electrode. This was the #8 plug (back left from inside the boat.) I ran the engine for 30 seconds...
  2. J

    Parts for 5.7L Thunderbolt (on exhaust elbow) Mercruiser Tune-up

    I'm looking to do a tune-up on my 5.7l. I thought it was a 1997, but serial looks up to 1988-1995. I plan to replace the plugs, wires, cap, rotor, and fuel filter. I'm also doing an oil change, but already have the filter and oil. I don't know marine parts as this is my first boat and I have...
  3. J

    Power Steering Leak - 5.7 Mercruiser

    I bought a 1986 Four Winns 21' Open Bow a month or so back. On the test drive the steering was a bit choppy, noticed low power steering fluid. I filled it up after buying the boat and the next two trips were perfect. On the next trip it was pulling left hard. If I let go of the wheel the...
  4. J

    Alternator/Battery Issue? 1997 5.7 Mercruiser

    I have a 1986 Four Winns 21' open bow. It was repowered in 1997 with a 5.7L Mercruiser. I just bought it a month ago. I had it out a few times with reasonable power (I need to do a tune-up, I'm guessing around 80% power.) The last two trips out I have been starving for power topping out at...
  5. J

    Bought SS Prop off Ebay for Alpha One, doesn't seem quite right. Can I make it fit?

    I bought this new prop off ebay. It doesn't seem to quite fit my 1997 5.7L Mercruiser Alpha One. I would very much appreciate if anyone could tell me if i could get this prop to fit, and if so how? Also, once it fits, what hardware would I need on the outside to replace the tabbed washer...
Top