Recent content by oregonrafter

  1. O

    Need Mercuiser wiring diagram, pictures or tutorial for 1997 4.3 vortec

    I bought a 1997 4.3 mercruiser engine that had the wiring harness removed. I purchased a wiring harness, and now I need to install it. Do you know of a source for pictures or a diagram for this? Your help is greatly appreciated. ...It's sort of intimidating looking at a big ball of spaghetti...
  2. O

    Holes in bottom of MerCruiser distributor

    I have a 1997 mercruiser 4.3 that I'm trying to resurrect. It came with a thunderbolt distributor, but has no rotor or cap. There are 4 holes in a line in the bottom of the "cup" of the distributor. Should these holes be plugged, or are they supposed to be vent holes? ...I don't see any other...
  3. O

    4.3 vortec aluminum oil pan installation

    I want to install an aluminum oil pan on my mercruiser 4.3 vortec (1997 model). This has been a little frustrating to research. From what I can tell, the mercruiser-specified aluminum oil pan is identical to the oil pan that is made for many trucks and SUV's, and appears to have the exact same...
  4. O

    Mercruiser 4.3 vortec fresh water cooling - Need seawater / raw water pump?

    I'm going to install a closed cooling system on a Mercruiser 4.3 Vortec with an alpha 1 drive. The motor does not currently have a seawater pump, except for the one in the outdrive. Do I need a separate belt-driven seawater pump in addition to the impeller that is installed in the Alpha 1 drive...
  5. O

    Closed cooling system: Mercruiser manifold and risers with Volvo Y Pipe?

    I'm replacing my Volvo 305 with a rebuilt chevy 350, and I want to use a full cooling system (engine coolant circulates through engine and manifolds). As far as I know, there is no Volvo riser and manifold combination that will work for this configuration. The mechanics I have talked-to, say...
  6. O

    Tohatsu 15hp auto choke problem

    I have a Tohatsu MFS15B (15 hp, manual start, tiller handle). It's really hard to start... I have to pull and pull, and when it finally gets going, I have to keep it reved for several minutes, or it will die. After it is warmed-up, it runs flawlessly and will start with one quick pull. I'm...
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