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  1. Scott06

    Help a new guy out . Pcv valve

    He just trying to piece it together... not get an earful If I recall the 4.3 2 bbl non vortec was 175 hp , vortec is 190 hp. Might need to pitch down depending on boat size.
  2. Scott06

    2003 Ebbtide Mercruiser 3.0 engine rattle? Normal?

    Yes check fir 12 v at plug in wire harness when key is on or cranking
  3. Scott06

    2003 Ebbtide Mercruiser 3.0 engine rattle? Normal?

    Take hi volt wire from coil off center post of distributor and hold close to clean ground on engine block, crank engine should see a good blue spark that can jump 3/8”/10 mm or so. If not spark here will need to diagnose distributor sensor and ignition module. if you have spark off coil, verify...
  4. Scott06

    Long term engine storage prep question

    As mentioned if you bag it you will be fine. I did a rebuild on a Pontiac 389 years ago. Sat for three years with just assembly lube in it . Added oil primed via distributor hole with priming tool/drill, broke in the cam…years later it still runs well.
  5. Scott06

    Help a new guy out . Pcv valve

    You are welcome this forum is good unless you start an oil thread… what is your engine number normally they are elbows only but maybe merc does something different ocassionally
  6. Scott06

    Just a final check on outdrive choice

    New alpha gen 2 drives $3200 US…https://www.michiganmotorz.com/mercruiser-alpha-one-gen-2-outdrive https://nuwavemarine.com/mercruiser-outdrives-parts/mercruiser-alpha-gen-2-outdrive-1992/alpha-gen-2-outdrives-lower-units/oem-mercruiser-alpha-1-gen-2-outdrive-1-47-1-62-1-81-2-00/ same two...
  7. Scott06

    Just a final check on outdrive choice

    I would go for a 1.47 drive in that rig. My Sea Ray 200 (21 ft ish) is listed as 3200 dry, has a 5.0/260 hp, with a 1.81 drive I can hit the rev limiter with a 21" 4 blade Revolution 4 prop and a couple adults. Your engine is a little more than stock too? If you ask about SEI drives you hear...
  8. Scott06

    Just a final check on outdrive choice

    Normally the ratios were 5.7 - 1.47 drive 5.0-1.62 drive 4.3- 1.81 drive 3.0- 1.98 drive unless you are at high altitude or have a small engine in a large boat I think you would want the 1.47 or 1.62 at the steepest. 1.81 you will over rev. These ratios allow you to use the typical prop...
  9. Scott06

    Help a new guy out . Pcv valve

    That's a nice solution vs buying a flame arrestor ...
  10. Scott06

    I need help wiring my mercruiser 470

    Replace and set with a dwell meter.... My favorite how do points work video And setting the points
  11. Scott06

    Help a new guy out . Pcv valve

    Boats dont use PCV valves there will be a tube from an elbow on the valve cover(s) that goes to a point on the flame arrestor, so basically any crankcase gas gets pulled into the carb. Flame arrestor should look like this vents to valve covers connect to the barbs- what does yours look like...
  12. Scott06

    Fuel Capacity

    That should be ok . My 17 ft had a 18 or 20 gal tank, my 21 has a 37 gal tank.
  13. Scott06

    Rubbing compound for heavy oxidation

    this 3M kit has the three compounds you need...
  14. Scott06

    Adding 100+hp. Would you re-prop ?

    one comment about the bowtie intake as I assume that is what you are looking to go with? Seeing it is raw water if the manifold is aluminum you will likely have corrosion issues. Marine intakes have brass lined water passages or are cast iron. Couldn't tell from photo if you are cast iron or Al...
  15. Scott06

    2003 Ebbtide Mercruiser 3.0 engine rattle? Normal?

    You have no spark then . Diagnosis the igntion system
  16. Scott06

    Transporting a 20' boat on a flatbed.

    That is the same set up I have on my magic tilt for my 21 ft Sea ray except I have carpeted bunks up front. See no reason as long as size and spacing is reasonably ok that that wont work for what you are doing.
  17. Scott06

    Will OMC Engine/Drive Match Mercruiser- Plug & Play?

    Floor is the last thing to rot from the bottom up... Ok so the boat is together they are keeping a nice motor and drive because they know the boat is roached...best to move on
  18. Scott06

    Adding 100+hp. Would you re-prop ?

    I would say yes you will likely either need to go up in pitch or down in gear ratio as you are already nipping the rev limiter... But try what you have and evaluate after install. I think the delco est which is relatively drop in does not have a rev limiter just be aware that the drive may...
  19. Scott06

    Will OMC Engine/Drive Match Mercruiser- Plug & Play?

    No offense but this sounds like a bit of turd polishing... and could be a lot of work with no result for you. As Scott outlines likely removed it and stopped doing work because transom is rotten... which can be fixed but its a lot of work. If it had a Merc alpha or bravo drive the keyhole is...
  20. Scott06

    2003 Ebbtide Mercruiser 3.0 engine rattle? Normal?

    Not sure what A to B means here is a video showing primary and secondary ohm values
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