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  1. Scott06

    Changing props

    This ! Ive done with a life jacket on in middle of lake , dont loose the thrust washer… sticks with grease to prop hub… always good to keep a spare hub, thrust washer etc on the boat
  2. Scott06

    First time winterizing 4.3 mercruiser, alpha one.

    Without draining water out first you risk nit completely getting enough AF through block to prevent freeze damage. marinas will do this on alrgers boats but they have huge tanks with large amounts of af that they run the engine in to ensure complete replacement of water with topped off AF. big...
  3. Scott06

    Winterizing my boat

    Drain water side of heat exchanger and water pump as likely lowest point. Depends on exactly what closed cooling system you have verify strength of AF on engine side is ok for lowest temps. stabilize fuel some will run a mix of 20% 2 cycle oil and fuel to fog engine change engine oil change...
  4. Scott06

    mercruiser engine turn over does not start

    100 psi is basically dead cylinder or in this case a dead engine do you spark and is there gas from accelerator pump when you stab the throttle?
  5. Scott06

    350 mag mpi manifold/elbow temp

    Yes there is a gasket that will not survive taking apart- oem ones have a rivet in them to ensure continuity between housing and manifold so temp gauge works.... You can also pull the hoses off the outlet and look in the ports. Merc has a flow test you do by taking water supply hose (from...
  6. Scott06

    mercruiser engine turn over does not start

    Fuel Spark Compression test for all - which one is missing ?
  7. Scott06

    Is this a reasonable quote?

    Looks like this is the result of lack of maintenance as other have suggested. If drive is never removed and it is in salt water things don't like to come apart. I'm not a professional mechanic, but well experienced industrial and home mechanic, it took me 2 weekends to get through my bellows...
  8. Scott06

    Glastron SX 175 Gas Smell

    I don't know about your exact boat on mine there is an access handhole threaded into a fitting in the floor above the sender and pick up tube. the entire glass floor above the tank unscrews to access complete tank and remove it if needed. I suspect you have a cracked fill or vent hose . No...
  9. Scott06

    350 mag mpi manifold/elbow temp

    They will be hot to the touch, you can put your hand on them but you dont want to leave it there long. If you just replaced manis and elbiws you are prob fine. to give yourself some piece of mind have you verified the flow to thermostat housing ? If you have the poppet valves feeding elbows they...
  10. Scott06

    350 mag mpi manifold/elbow temp

    Is this a salt or fresh water boat? The one side is getting on the edge of hot might be worth taking off elbows to see what passages look like in terms of scale and corrosion
  11. Scott06

    Time to chuck the 470

    Correct but depends on how he uses it. My typical use is 6-8 people doing watersports… cant have enough hp. If its him spouse and a friend or two cruising stop for a swim, get a low pitch prop and a 3.0 will putz along just fine and be real easy to maintain… didnt know that for sure then yes it...
  12. Scott06

    Time to chuck the 470

    Absolutely when compared to fueling up the car, but when you put the fuel costs vs other family pastimes it seems cheap compared to other things.
  13. Scott06

    Time to chuck the 470

    I would do the swap get it in the water then play with prop pitch and gear ratios in that order. usual fuel line, linakge, shift plate mounting. Biggest concern is the exhaust down pipe not sure if the 3.0 and 3.7 use the same down pipe and if it can be finagled to fit or modified by using...
  14. Scott06

    Mercruiser 3.0 to Mercruiser 4.3 swap

    Yes you can also probably use the 3.0 drive by increasing prop pitch. I did a 4.3=>5.0 swap that should have also ‘required’ a 1.81=>1.62 drive swap. Went from a 19” pitch to a 21” pitch and hit wot rpm perfectly.
  15. Scott06

    Swapped Thunderbolt IV for Delco EST

    We all knew that because we have done the same … many times ..,
  16. Scott06

    Time to chuck the 470

    you are not going fast enough ...
  17. Scott06

    165 MERCRUISER

    Didn't say merc dealer, they dont troll with old stuff... they sell new. google classic car gauge restoration or repair. You will find several respected companies who repair gauges. problems is they cater to show resto crowd... $$. The one that did my gauges wasn't bad for repair and calibration...
  18. Scott06

    165 MERCRUISER

    look into places that restore gauges for classic cars. Would be surprised if you can't find someone to repair them, but it will not be for the faint of wallet...
  19. Scott06

    Time to chuck the 470

    I didn't because my boat was set up for it (boat was factory offered w 4.3's and 5.0's). Stringers supporting side mounts were long enough to accommodate the 4.5" diff between 4.3 and 5.0 locations and front and back of blocks are identical between 4.3 and SBC. I just plugged the original lag...
  20. Scott06

    Time to chuck the 470

    To the OP since this boat has family value to you and you want to do it right, you best bet is to find a boat (cl/ebay) with a '91 and newer (gen 2 drive) preferably 96 and newer (for vortec engine) that has a roached interior or rotten stringers. Even if block is cracked (get new or reman...
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