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  1. Scott06

    HELP 2005 5.0 MPI OVER REV

    not every timing light has a tach feature. If its a modern digital one like an Innova with a tach built in then yes, if its an old school one like mine then no. talk to your friend if he has a timing light and knows how to use it ( rare skill these days) likely one way or another he has a tach...
  2. Scott06

    1978 evinrude 70hp model 70873 problem

    Mark hub and prop with a sharpie, take it out and make the prop slip, see if hub to prop marks move. Possible the hub is bad from factory, also looks like it is nicked up, is blade bent damaged? also can you take a pic of cav plate but with a 4 ft straight edge coming off the hull ? Looks like...
  3. Scott06

    HELP 2005 5.0 MPI OVER REV

    Depends on which one you have Old school ones you connect to negative side of coil and a ground, i have a newer wireless one just hold near engine after setting cylinders and cylces…newer timing lights have a tach in them worth a couple buck invetsment. I still use my dads 60s vintage “All...
  4. Scott06

    HELP 2005 5.0 MPI OVER REV

    Exactly. You woukd know if you hit the rev limiter you would feel it miss.. try cycling the cylinder selector switch on back of tach and make sure its on 8 cylinder. verify with a shop tach. was this boat flooded or sunk?
  5. Scott06

    HELP 2005 5.0 MPI OVER REV

    Yes fuel pump relay sounds like it needs replacement. do you know the drive ratio on the alpha gen 2 ? I assume 1.62. i would verify your tach first likely it is off as 5100-5200 the rev limiter kicks in. do this before messing with props . I run a vensura , a nemisis would be a down grade in...
  6. Scott06

    Tips for removing intake manifold V6 4.3

    See posts 2&4 ...
  7. Scott06

    Stern Drive to Alpha One?

    Do you have a MC-1 (with lifting eye on top cap) or gen1 drive now? I assume you meant MC-1, not Alpha Gen 1 which is the same drive the guys are recommending you get to upgrade....
  8. Scott06

    First time winterizing my boat myself.

    You can be frugal (doing the work yourself) and still take good care of it. A lot of guys run conventional Rotella 15w30 which is about $15 a gal at walmart… been winterizing this was since I started helping my grandfather when i was 14, his boat, my parents boat, and now my boat have all...
  9. Scott06

    First time winterizing my boat myself.

    Not much of a savings skipping engine oil and gear lube savings … two of the easiest preventative maint items
  10. Scott06

    Tips for removing intake manifold V6 4.3

    To get to tdc on number one remove spark plugs you can turn by hand. Make sure it is on compression stroke not exhaust stroke , you can put your finger over plug hole will build pressure on compression stroke…also can remove valve cover and make sure both valves are closed… also can just mark...
  11. Scott06

    Picture of my prop - what’s going on here?

    Yes you need anew sleeve. It is mean to shear if you hit something...
  12. Scott06

    Correct time to winterize stern drive engine?

    Yes that will pool some water.
  13. Scott06

    4.3 Mercruiser ignition control module Thunderbolt IV

    It could
  14. Scott06

    Stall during acceleration

    Thats a lean sneeze , would make sure the accelerator pump linkageis adjusted so there is no slop which creates a lag when hitting throttle. you may want to recheck float level. Have you measured fuel pressure and what do the spark plugs look like ?
  15. Scott06

    correct prop for 74 mercruiser 140hp

    Yes if i recall correctly my grandfathers ‘65 or 66 , 150 hp 6 cylinder was 3800-4200 not much if a rever…
  16. Scott06

    Mercruiser 5.0 crankshaft front oil seal replacement

    Its not like tin valve and timing covers never leaked…
  17. Scott06

    MAG 350 loses power after 20 minutes, need help

    He is the OP
  18. Scott06

    Mercruiser 5.0 crankshaft front oil seal replacement

    Mid 90’s and up vortec engines came with plastic covers from GM.
  19. Scott06

    Correct time to winterize stern drive engine?

    AF is preference for some folks nit required, drain it probe the drain holes with a stiff wire, make sure a decent amount of water drains out.
  20. Scott06

    Setting timing on 2008 Mercruiser 5.0 tks

    Factory manual is best place. A couple screen shots attached procedure is at bottom of one purple /white wire plug end on mine comes out of engine harness by shift interrupt wires on starboard side of intake. ground the plug at end of purple white wire , set timing at 10 deg btdc… take ground...
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