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  1. Scott06

    NEED HELP QUICK PLS: Replacement Engine choices for 350 MPI

    If you are knowledgeable and talented enough to assemble your own engine ( seems like you may be from your comments) Scott can walk you though the right choices. If you arent knowledgeable or dont consider a project fun, buy the complete base engine. either route will work just one is more...
  2. Scott06

    Fouled Spark Plugs

    Stinky exhaust on start implies overly rich, make sure choke fully and consistently opens
  3. Scott06

    Marvel Mystery oil in a 2004 5.0 engine

    Ok when it stalls and will not restart have someone pump the throttle forward while you look down the bores of the carb if yiu see two solid streams of gas you likely have fuel in the carb. check for spark take the coil wire off the distributor and ground it see if you get a nice blue spark that...
  4. Scott06

    Fouled Spark Plugs

    Carb issue choke sticking closed or too much fuel pressure
  5. Scott06

    QJet to Edelbrock 1409

    Just below where the flame arrestor goes on the carb on the back left side there is a 1/4” nipple that sticks out fir the fuel pump diaphragm rupture overflow tube. Its at about 10 oclock if you look down at the top of the carb
  6. Scott06

    Need advise on bringing a 92 beretta succsess 200 back to life.

    Cant quite follow Whats going on with the choke, but i ran with out one for many years just fine by forcing mine open. Just needed a couple of throttle pumps and fast idle on colder mornings
  7. Scott06

    Mercruiser 3.0 Rebuild or not

    You may have to change the oil 3 times or so to get any milk cleaned out. Buy the cheapest oil you can put only 3 qts in, run it at the dock or on the muffs, keep changing the oil and filter until it stays clean.
  8. Scott06

    Riser Extension Blocks - Full Closed Cooling ???

    They make a longer down elbow 807963A 1 - Riser Kit - BB for 3”&6” riser but they are $450a pair ...
  9. Scott06

    Mercruiser engine alignment sideways

    There is some side to side movement that is normal. When I did my engine a few years back I used the witness marks on the alginement tool to verify side to side alignment as well. We just shoved the engine sideways a little until it was equal grease lines on the tool. It helps to take some...
  10. Scott06

    Freese Plug

    My neighbor years back didnt drian his block until after the first freeze, mechanic saw the same thing a core plug pushed out but no water in the oil... it wasn't until he used it 3-4 times and got it good and hot that he started (or noticed; he wasn't the sharpest tool in the shed) to see water...
  11. Scott06

    Exhaust Risers 4.3 L V6 carburated

    this may help some https://www.perfprotech.com/blog/articles/warm-manifold-cooling-tips I wrote I belive cause I wasnt 100% sure...
  12. Scott06

    Exhaust Risers 4.3 L V6 carburated

    I think merc used the restrictor gasket with the warm manifold cooling setup. If you have a cooling hose feeding the bottom of the manifold and a separate cooling hose feeding the elbows, the restrictor gasket is used. If you have the cold manifolds where the constant flow of cooling water where...
  13. Scott06

    Random alarm 5.7L carb'd Bravo 2

    The TB module is seen directly behind your mercathode in the pic you posted. It is attched to the exhaust elbow. The knock sensor is piggybacked to it. The ignition module is the bigger rectangular module, the smaller one is the knock sensor
  14. Scott06

    Adding gear lube

    This is exactly what I see every spring first couple trips i add a couple of inches of level in the bottle then Im good for the season.
  15. Scott06

    Carburator frustration

    How did you observe a noticeable increase in fuel delivery from the secondaries at the dock? when you think the secondaries open what rpm? You were thinking these issues were at or 2500 or less. At 2500rpm a 5.0will need 187 cfm , the secondary air valve isnt opening yet. You will hear the...
  16. Scott06

    Carburator frustration

    when advancing the throttle on a carb with gas that is off the engine the only thing that will squirt gas in is the accelerator pump which is on the primary side only. Fuel will only come out out of the veturis when air is moving through them to create a pressure drop. you seem overly focused...
  17. 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...
  18. 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...
  19. 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
  20. 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...
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