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  1. newtoboat101

    3 prong oil pressure switch elec. fuel pump wiring

    hello, changing from 1988 mercruiser 5.0 lx /alpha 1 gen 1 ,to new gm 5.7 vortec motor with electric fuel pump. wire from I terminal goes to ? and the S terminal wire goes to ? have a thunderbolt4 ignition with delco est distributor ,My confusion is the purple wire to neutral safety switch...
  2. newtoboat101

    life vest snaps blew up

    boat is in driveway ,5 extra cheap life perservers in cuddy cabin along with 2 excelent life vests ,well its been closed up for awhile during some heat wave ,opened it up yesterday and 3 life vests snaps have disintagrated or exploded ,and had fabric wrapped around one cushion is shedded or dry...
  3. newtoboat101

    when do you know your flappers need to be replaced

    hello, 5.7/alpha 1 gen 1 ,replacing motor was checking out my exhaust flappers ,and was wondering should i replace ,how to tell if there worn and need to be replaced, they dont really flatten back out ,they hang down slightly with slight gap thank you
  4. newtoboat101

    NEW GM 5.7 MOTOR SERVICE MANUAL

    HELLO, so i purchased a new 1996-2000 5.7 vortec motor ,old motor was 1988 merc 5.0lx motor,trying to get service manual for this motor,would anybody know what issue service manual i can refer to ,even for the simplest things like spark plug gap and timing and timing curves ,old motor .035,new...
  5. newtoboat101

    freshwater cooling full kits

    hello,new gm 5.7 vortec motor ,was trying to get aftermarket full closed cooling kit, what companies are still making kits ,monitor cooling kits are not being made until a sept 22 decision to continue production, seakamp no longer producing ,orca marine have not heard back from,cp performance...
  6. newtoboat101

    new 5.7 vortec parts

    hello all, purchased a new 5.7 base 1996-current engine serial # 10243880 (crate engine?) ,had 5.0lx previously, need to switch some parts ,like dipstick and dipstick tube ,which parts manual should i refer to ,or can someone give me the correct dipstick and tube for this engine would...
  7. newtoboat101

    how to lift new 5.7 motor with edelbrock manifold

    pulled my 5.0l with cast iron intake manifold and replacing with 5.7 vortec with edelbrock aluminum intake manifold ,my boat is 1988 thompson 240 hard top on trailer the aft of boat iis around 6 feet ,so have to clear that .Had no problem taking out old motor ,but the aluminum intake has got me...
  8. newtoboat101

    5.7 vortec manifold gasket

    reading alot about the 5.7 vortec intake manifold gasket blowing out on autos when using a edelbrock performer ,and to use FEL-PRO MS 98000 T Intake Manifold Gasket Set is this the way to go even on marine applications? 5.7 vortec with edelbrock performer manifold use gasket fel pro ms98000 t...
  9. newtoboat101

    solid mounts vs. rubber mounts

    I know its been discussed alot ,but never got an answer for my situation. and read alot ,but still no real definate answer. i own 1988 thompson 240 HT with 5.0lx/ edelbrock 4 barrel 600 cfm/alpha 1 gen 1,switching motors to 5.7 vortec , looking to lessen vibration noise,saw barr marine front...
  10. newtoboat101

    new 5.7 1987-1996?

    looking to repower my boat 1988 thompson 240 ,right now i have 5.0 4 barrel/alpha 1 gen1,looked at reman 5.7 3800 dollars ,new 5.7 4600 ,now my question is are they actually brand new motors from factory or are they stating there new , but just reman anyway ,and who is a repretable engine...
  11. newtoboat101

    moving trim /tilt motor

    hello, 1988 thompson 240HT ,merc 5.0lx/alpha 1 gen1. Can i move my trim/tilt motor to the opposite side. Long story short ,put mercury 9.9 long shaft kicker motor on boat with 2 batts on same side ,boat would tilt ,and try to correct its self ,so moved 2 batts to other side ,but a little crammed...
  12. newtoboat101

    cable steering to hydraulic steering old p/s pump

    1988 mercruiser 5.0lx motor ,switching from cable steering to hydraulic steering ,i am also adding raymarine ev150 autopilot.with type 1 pump I have added hydraulic helm,and ran hoses to back of boat ,so i took old helm box, ram and cable out of boat, My question is what to do with old power...
  13. newtoboat101

    autopilot for 1988 mercruiser 5.0 alpha1 gen 1

    i am trying to put raymarine evolution autopilot on my 1988 thompson 240 with 5.0lx and alpha 1 gen1 with cable steering ,i talked to raymarine ,and they say i need to add octopus steering on my boat ,wasnt familiar with this ,and after a little research ,im a little confused on what octopus set...
  14. newtoboat101

    9.9 command thrust mercury throttle question

    mercury 9.9 command thrust with pull start and no electric tilt,was wondering if i can change from the shift/grip arm throttle that it has now to a shifter throttle ,to control from captains chair or somewhere on boat ,just the throttle ,no steering wheel ,have auto pilot for that ...
  15. newtoboat101

    alpha 1 gen 1 shift interupt switch

    1988 5.0lx /alpha1 gen 1 ,i switched from TB4 to a delco est distibutor kit ,and i need to check to see if shift interupt switch works correctly ,boat is on trailer now ,so can i set up a 110 gallon plastic tub and run motor and check switch ,will it give enough resistance to work and check...
  16. newtoboat101

    what went wrong with my outdrive?

  17. newtoboat101

    new carb new issue

    hello, ihave 1988 thompson 240 HT ,mercruiser 305lx with alpha1 gen 1 drive thunderbolt IV ignition, i swapped out my old Q JET for edelbrock 1409 600cfm ,used the plate kit with fuel line to make swap everything went fairly easy maybe 2 hours total ,so took boat out went for 6 miles seems...
  18. newtoboat101

    CAPTAIN CHAIR EXTENTION POST DIAMETER SIZE

    please take a look at pictures ,need to get seat post extention ,but boat is 200 miles away ,what size diameter do i need thank you ,looks like an older attwood seat , but not sure
  19. newtoboat101

    SWITCH FROM QJET4MV TO EDELBROCK

    1988 mercruiser 5.0lx want to switch from quadrajet 4mv to edelbrock ,which edelbrock is right for my application 1409 or 1410 and edelbrock conversion kit part #2697 ,is that all i would need to make conversion thank you
  20. newtoboat101

    alpha 1 gen 1 reverse lock

    bringing boat boat out of winter storage was having water flow issue ,changed engine water pump, thermostat and decided i would check impelleron my alpha 1 gen 1 outdrive,so i dropped the lower outdrive off of the upper ,upper stil attached to boat ,put new impeller and gasket(the kit) on go to...
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