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  1. Scott06

    Carburator frustration

    Given this comment re the old carb Id still be suspicous of fuel starvation. If it is just a stumble off idle to 2500 rpm and then it recovers Bondo is likely right that it is the accelrator pump . You can try moving the hole the pump rod is in to the closest on on the pump arm this should...
  2. Scott06

    Need instructions how to remove merc 2000 3.0 L Engine from Boat

    You can leave the harness on the engine, disconnect the cannon plug from the boat harness (i think on a 3.0 is in the rear on the stbd side) remove the 12v positive battery cable frorm the starter lug, remove the negative battery cable from the flywheel cover. PS hoses disconnect at the cylinder...
  3. Scott06

    Random alarm 5.7L carb'd Bravo 2

    What does the engine temp look like ? Measure the water crossover with a IR thermometer. You may be running hot intermittently
  4. Scott06

    Mercruiser 165 4 cylinder running hot

    There is always supposed to be some water that bypasses the thermostat to cool the exhaust system regardless of if the thermostat is open or not Heat exchanger pop the ends off and jam a wire down the tubes, exhaust Id take off the discharge elbow and look in the water passages of the exhaust...
  5. Scott06

    No spark !!!!

    BT has you steered straight -clean and file the points set with a dwell meter once you get it running. When properly maintained points are just as good as any ignition system, but this is why they did away with points too much maintenace.
  6. Scott06

    Adding gear lube

    Thats how I fill it, up through the lube bottle with the top plug in. There is some air trapped in there somewhere as I always loose a little bottle level after using it a time or two, top it off and Im good for the summer.
  7. Scott06

    Carburator frustration

    Plenty of GM cars back in the day used them. Mid 60's pontiacs used them until the Q-jet came out. The metering rods are nice for tunability and the secondaries are essentially vacum operated as the air valve is weighted and only opens based off what the engine needs much like the q -jet, just...
  8. Scott06

    Carburator frustration

    Here's the link to the Edlbrock tuning guide https://edelbrock-instructions-v1.s3.amazonaws.com/edelbrock/carb-tuning-guide.pdf If you havent worth reading the first section on how the carb works. you need to determine if your issue is with WOT or part throttle cruise as that will lead you to...
  9. Scott06

    Carburator frustration

    When you set the timing did u put it in base mode ?
  10. Scott06

    Carburator frustration

    Fuel supply to the carb, i know you said the fuel pump was replaced but have you measured the fuel pressure while running? What dot he contents of your fuel filter look like ? what do your plugs look like In terms of reading them for mixture clues? on my 5.0 i did not have to rejet when i...
  11. Scott06

    Delco Voyager EST.... New ??

    The interrupt switch when closed during coming out of gear momentarily supplies 12 v plus to the est module in the distributor . What you mentioned is correct fro a non est merc thunderbolt system. Slight rewiring as outlined in the link i attached is required for the est system. Both work just...
  12. Scott06

    Carburator frustration

    Volvo penta used a 4 bbl intake with and adapter to neck down to a 2 bbl. i run a 1409 on my mercruiser it worked well out of the box, i just went with a larger accelerator pump nozzle . I does it idle ok ? I would check your fuel pressure should have around 5-6 psi at wot. also check your...
  13. Scott06

    Delco Voyager EST.... New ??

    Heres a wiring diagram for installing delco est https://bpi.ebasicpower.com/downloads/EDMbasewiring.pdf
  14. Scott06

    Riser Extension Blocks - Full Closed Cooling ???

    Mcmaster Carr is my go to source for items like that
  15. Scott06

    Mercruiser Alpha 1 Gen 1 Project

    Definitely replace the gimbal given the rust and moisture in the grease. One other way to get water in the bellows is through the shift shaft theres seals where it pivots through the exhaust passage the top one can let water into the bellows if the big square gasket leaks .
  16. Scott06

    Fuel pressure dropping.

    How long does it take for the fuel pressure to drop to zero? One thing that hasnt been mentioned is the fuel tank vent being plugged, but this would take several minutes to start pulling a vacum on the tank. you could test this by blocking off the boat tank and hook an outboard tank to the pump...
  17. Scott06

    Mercruiser Alpha 1 Gen 1 Project

    Given the corrosion in there did u check the gimbal bearing
  18. Scott06

    Hydrolocked in the parkinglot

    If you have the fin and it is not in need of replacement leave it. Having had both on PS equiped boats over the years I wouldnt swap out one for the other. If you later put a different prop on you can easily trim it to fit. Almost any higher perfromance prop than a black max will require...
  19. Scott06

    Mercruiser Alpha 1 Gen 1 Project

    As mentioned clunk going into gear is correct for a dog clutch style like on the alpha. If it clicks or doesnt fully engage that is more likely shift cable needing replacement, so replacing the drive wont help that. Moog 315 or equivalent is the correct ujoint. I would also replace the ginbal...
  20. Scott06

    How to tell what carb I need?!?

    the fact that is an alpha doesn’t matter but you may want to verify the drive Ratio on the off chance someone swapped in a 1.32 ratio off a 454 powered boat.
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