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  1. Scott06

    Connecting a electric fuel pump to 5.7LX

    If you only use the purple ignition wire the fuel pump will not be powered during cranking. So when your fuel bowl dries out as typical when the boat sits for a couple weeks it will never refill and engine wont start. two ways around it - wire in parallel a momentary switch to prime before...
  2. Scott06

    Missing drive oil bottle ???

    On the older Gen ones without one it wasn't much of an issue, especially if it is a trailer or lift kept boat. I would just check the level up top and bottom for any water or metal a couple times during the season.
  3. Scott06

    Connecting a electric fuel pump to 5.7LX

    This is what you want to wire. You may be able to get it off the yellow red which fires the starter, if you cant get it off the starter. you starter has three lugs on it though? Need to get 12v off starter during cranking then go through the switch off the purple ignition wire when in run . Yes...
  4. Scott06

    Carburetor choke question

    Yep ran many years like this just zip tied the choke open couple of pumps and good to go… mostly warm when boating
  5. Scott06

    Missing drive oil bottle ???

    Spoken like a true professional….
  6. Scott06

    Missing drive oil bottle ???

    Photos 1&2 have a q jet, photos 3&4 have and edlebrock ….
  7. Scott06

    got a question about a future V6 to V8 repower...

    The 5.7 is the way to go. Hp diff between a vortec 4.3 and 5.7 is 225 vs 295, torque diff is 268 lb ft vs 370…and the torque curve for a 5.7 is flat http://marinepowerusa.com/wp-content/uploads/2019/08/57lspecs.pdf if you are running a 17 now you d probably need a 21 with a 5.7
  8. Scott06

    got a question about a future V6 to V8 repower...

    I did a 4.3 to 5.0 swap a few years ago in a Sea Ray 200 sport. If your engine compartment and stringers are set up for a V8 then it is pretty easy. I got a partial engine package from Michigan Motorz plus exhaust manifolds. Since the 4.3 and 5.7 are essential the same block minus two cylinders...
  9. Scott06

    Carb choice.

    https://cliffshighperformance.com/simplemachinesforum/index.php?topic=3979.0 talks a bit about casting numbers and cfm
  10. Scott06

    Carb choice.

    Likely a 750 cfm. They only made two sizes 750 and 850 cfm, i dint think if any of the larger ones made it to marine applications. bottom line any qjet properly rebuilt and set up is as good a carb as anything you may put on there. Question is do you have a rebuildable core?
  11. Scott06

    Building a '93 Caravelle 1750 Classic Bowrider

    I am interested to see how this lock and stich works out! I think with the manifold removed you can access it fairly well no?
  12. Scott06

    3.0 mercrusier stalling

    When you say it runs good for a while, is that when it is cold and first warming up? If so i assume this is when the enrichment valve is open, then when it warms and closes it runs rough and stalls? if so this would imply that the idle circuit is either set too lean or plugged. Have you tried...
  13. Scott06

    Trailer Brakes or Not

    Which actuator did you get? I. Sure there is a way to manual bleed it. Usually the breakaway has a catch so when it is actuated by the trailer coming loose the brakes stay on. Read through the instructions that come with it .
  14. Scott06

    How do I change engine rotation direction?

    The reverse rotation camshaft and distributor have the gears such that the distributor turns the same way thus driving the oil pump the same direction To the OP if you peruse this subject on Offshore only there are a few threads on this subject, of course giving somewhat cloudy info....
  15. Scott06

    Drive availability

    I assume you can still use your corroded drive , maybe swap after the upcoming season …
  16. Scott06

    How do I change engine rotation direction?

    cam,distributor, and flywheel thats it i believe. Flywheel i think you can move/ replace the ring gear for an automotive block mounted starter if you are using a manual trans, if auto you need a flexplate anyways… of course exhaust manifolds are different between marine and automotive.
  17. Scott06

    1974 Mercruiser 140hp transom assembly replacement options

    Correct the flywheel housing has the different spacing as well.
  18. Scott06

    1974 Mercruiser 140hp transom assembly replacement options

    The MC1 transom plate has different rear engine mount spacing than post 1981 alpha transom housings. @Bondo would probably know what you can mix and match i assume you intend to keep your engine and drive? if the boat is in good shape and you want to keep it for a while (. Aka worth investing)...
  19. Scott06

    2006 Volvo 5.7 osi-d crank no start

    X2 double check all bolts are out put pry bar in intake or cooling port and leverage it up
  20. Scott06

    Surge brakes not working. Where to start

    If they are discs the reverse lockout solenoid is powered off the tow vehicles back up lights. the other wiring connections are for lights. surge brakes will get applied by backing up as it puts the same pressure on the coupler master cylinder as the trailer pushing on a braking tow vehicle...
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