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  1. Scott06

    Idle setting Mercruiser 165HP

    correct. when adjusting it get the rpms right then adjust the mixture. One screw at a time, go in to lean it (slowly give engine time to react) until it stumbles, then richen it up until it stumbles. Usually in between is considered best idle. then you may have to readjust the idle speed...
  2. Scott06

    Help me set up my new edelbrock 1409

    Also was not a marine rated carb …. From a safety perspective is a big issue
  3. Scott06

    Cold Starting RPM: What is normal?

    when adjusting idle speed take the throttle cable off the carb . Adjust the idle speed. When you reattach the throttle cable adjust so it fits on where the idle screw stops the throttle. It should hold the throttle against the idle speed screw
  4. Scott06

    Cold Starting RPM: What is normal?

    Do your final adjustments on the water and in gear . I think you’ll find that 800-900 rpm is a tad high to get in and out of gear easily
  5. Scott06

    Help me set up my new edelbrock 1409

    I think from your earlier thread you have a TBV verify with first pic igntion module and probably knock module piggybacked to dist pages may be out of order but one of them has timing tune up instructions . get a factory manual as Mike said water will continue to come out (Especially if hose...
  6. Scott06

    Help me set up my new edelbrock 1409

    check or set igntion timing , tweak the idle mix screws , adjust the idle speed until maybe 675-700 out of water do final idle speed setting in water in fwd 650 or so. if it is a little lumpy the mix screws may need fattening up or leaning out
  7. Scott06

    Manifold Change

    You are right to change them and zero the milage given salt water use. 5-7 years change out is norm, if it leaks water into exhaust easy way to loose an engine . would look for signs of water intrusion into exhaust and exhaust ports on head. Check the exhaust flappers in top of wye pipe.
  8. Scott06

    Elbow gasket. Open, closed or restricted water flow gasket?

    If the raw water exhaust worked after conversion to half system replace with the same
  9. Scott06

    Mercruiser 3.0L LX Alpha One - Oil Leak

    it could be the gasket, the crank seal, or a corroded timing cover. You might be able to take the pulley off the crank to get a better look. You probably could do the oil pan in the hull, depending on what your engine cowl/doghouse looks like. Except for lifting device, it is really easy to...
  10. Scott06

    470 overheating

    You could pressure test the cooling system with an automotive style cooling system pressure tester. The antifreeze side of you engines should hold pressure. Those engines are known for the cam driven water pump to leak AF sometimes into the oil
  11. Scott06

    Help me set up my new edelbrock 1409

    Spread bore or square bore google it you will see the diff. If spead bore you may need an adapter to line up with your square bore carb
  12. Scott06

    Help me set up my new edelbrock 1409

    Without the spacers what does the intake carb flange look like
  13. Scott06

    Help me set up my new edelbrock 1409

    probably easier to snake one exhaust hose below the floor than 2 summit racing has wedges as you dont want to price the OEM one .. you can probably get studs at a local auto parts store, or old time hardware store . I think they are 5/16 coarse. Might be worth cutting down what you have until...
  14. Scott06

    Help me set up my new edelbrock 1409

    This is direct drive/inboard ski boat so they typically have an exhaust like that not sure if it is a muffler before going under the water at the transom
  15. Scott06

    Help me set up my new edelbrock 1409

    Its only insane when the fuel pump diaphragm ruptures.... I'm a safety is for sissies kind of guy but some things make sense. If you end up needing to rejet it the eddy book has some charts that help figure out which way to go.
  16. Scott06

    Help me set up my new edelbrock 1409

    A spacer can help with midrange by adding plenum volume but in this case, unless the PO was using them to adapt from a speadbore manifold to square bore carb I'd take them off. Setting the carb up should be pretty easy as that should run good on a 5.7 out of the box. Start wit the idle mix...
  17. Scott06

    Sterndrive Gear Oil - Alpha 1 Gen 1 3.0 140hp

    Agreed when gen 1s were new they took the premium gear lube (golden brown). At some point the labeling on the premium change to 75 and lower..
  18. Scott06

    Mercruiser 4.3 alpha 1 gen 2 alignment questions

    yes I had it backwards... Point I was trying to make (seeing the comment about the shop getting it as close as they could) is you can find some that dont give textbook witness marks and work just fine for years. My boat is a great example, have 400 hrs over last 9 yrs towing a lot of skiiers yet...
  19. Scott06

    Mercruiser 4.3 alpha 1 gen 2 alignment questions

    To get more grease on the bottom you need to raise the front not lower it. we must have the same boat. What you describe is exactly the alignment witness marks I got on mine years back When I did a repower. Never could get it to text book witness marks. Never had an issue with it in the 9 years...
  20. Scott06

    No water coming out of the exhaust on muffs

    Ame sure the choke is fully opening too. When you adjust the idle mix going in (lean) at some point it should stumble. If not possible float level and or needle and seat is keeping fuel level in bowl too high and hence being really rich.
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