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  1. Scott06

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    yeah no idle adjustments make sense here. holley fuel pump comments scott makes are spot on though
  2. Scott06

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    Describe in detail what happens when on the water does the rpm not go up or does it sputter when advancing the throttle. Does it die when you put it into gear? as discussed on land there is no load on engine so it doesnt need to make any power to rev to 3 k
  3. Scott06

    Mercury 3.0 EST no spark

    Is shift interrupt switch tripped?man over board tripped which wire is C/+ ? one of the two between coil and distributor? http://marineengines4less.com/images/companies/1/EST%20Ignition%20Instructions%20-%20ME4L.pdf?1431462059320 can you id which one it is in the attached wiring digram ?
  4. Scott06

    Mc-1 upgrade....

    by out drive do you mean just the outdrive or do you want to upgrade the outdrive, gimbal housing and trim system as well? If just the outdrive the later R/MR/Alpha Gen one will bolt up to your bellhousing and is still very current in terms of spares availability even though the Alpha gen one...
  5. Scott06

    2007 glasstron185 GT

    Depends what the rest of the hose looks like. If it chaffed or other maybe but you need to eliminate the chaffing. If the hose has timed out and is degraded no. Best bet is to remove so you can fully inspect inside and out, if you do that replace it.
  6. Scott06

    Flushing Muffs

    Well the last time i did a side by side flusher test … i dont know i just know these work well Better than the cheap ones i had before
  7. Scott06

    Mercruser 4.3 not starting

    Need to narrow down if you have missing fuel or spark. Take coil wire off distributor and ground it near engine you should see a spark. if not need to get spark back dump some gas down the carb see if it starts for a bit.if so could be issue with fuelline anitsiphon valve or fuel filter in...
  8. Scott06

    Flushing Muffs

    These have served me well for about ten years may be more https://www.amazon.com/Moeller-Flushrite-Flusher-Universal-Rectangular/dp/B000MT95RI
  9. Scott06

    Priming fuel system for new engine first start.

    has the engine been run on a stand first? When i ran mine on a pallet i took the plugs out cranked it on starter until it showed oil pressure , by then it was primed fuel wise. Dump a little gas down the carb it will run long enough to prime the fuel system in the boat
  10. Scott06

    Mercruiser Alpha One Gen Two Bellows

    Did you get oem merc bellows if not try one https://www.marineengine.com/newparts/part_details.php?pnum=MER816431A+1 or get the whole oem transom kit . I just did mine fit perfectly including the exhaust bellows...
  11. Scott06

    1978 5.7l pre-alpha with alpha gen 1 drive over heating

    A blown head gasket between those two low cylinders i would expect air pressure to come into combustion chamber and out sparkplug holes if you back the rockers to close the valves. cracked block that pressure will end up in crank case. if over head you could also have cracked heads not just gasket
  12. Scott06

    4.3 Alpha One - Gimball bearing issue

    As others have mentioned yes you will need an alignment tool. You can get one that presses on the gimbal bearing but I have used a 1” wooden dowel on the outer race and also a 3” sch 40 pvc pipe section left over from a plumbing job. quad ring comes with outdrive gasket kit and bets glued into...
  13. Scott06

    Hole shot, Mercruiser 4.3L

    Pretty sure the thrust washer between pressed hub and replaceable hub I believe is different. If the 19" Michigan 3 blade worked reasonably well try an 18" michigan vortex 4 blade. I ran a two on my old boat (17 ft /3.0) 18" for tubing and cruising, 16" for skiing and boarding. I am pretty...
  14. Scott06

    Original prop size for 1976 starcraft chieftain mk Iv 25 foot with 165 merc

    Also would verify the tach is accurate vs shop tach so you don't make pitch changes off a bad rpm number.
  15. Scott06

    2007 glasstron185 GT

    Buy the fill hose in bulk from a marine retailer and replace it… no easy way to do it because you have to snake it in most likely a pita probably something this size or similar https://www.hardin-marine.com/p-103-1-12-marine-fuel-fill-hose.aspx local marina will likely have it as well
  16. Scott06

    1998 Mercruiser 5.0 Intake manifold gasket mismatch issues

    If you have an 8 bolt vortec intake these should be gasket you need https://www.michiganmotorz.com/intake-gasket-gm-v-8-5-0l-5-7l-vortec-1996-current prob wrong gaskets were in your box
  17. Scott06

    4.3 Alpha One - Gimball bearing issue

    Not uncommon but usually there will be corrosion in thee locking gimbal brg to shaft. Replace the gimbal making sure it is seated properly, moog 315g or equivalent u joints will fit your gen one drive and are cheap make sure quad ring is properly glued in bellhousing before drive reinstall
  18. Scott06

    Hole shot, Mercruiser 4.3L

    Agreed. I bought mine used off ebay $300 was the most I paid for perfect condition props. Best prices are in January
  19. Scott06

    Mercruiser Alpha One Gen I Winterization

    On my grandfathers Penn Yan - you removed the seat cushions on the rear seats to access the battery and trim pump. On the vertical wall of the seat base there were 4-5" holes cut to access the oil filter and the plug for the boat as it was in the hull bottom not the transom. couldn't see...
  20. Scott06

    Mercruiser 3.0 diagnosis / serial number decode

    i had that exact same symptom on my 3.0, a vane off the impeller ripped off and blocked the water flow out of the pump. Vane was laying flat on bottom of impeller housing
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