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  1. Scott06

    Gear oil level

    yep as long as reservoir is ok you are fine. The reservoir keeps the outdrive full. There is also a low level sensor that sounds the beep that goes off when you start the engine. The alarm will go off when oil pressure is too low ( the brief time when the engine starts) , engine over heats, or...
  2. Scott06

    carburetor suspect problems

    Would make sure your ignition components are up to snuff. If ignition is good, the littlest bit of gas will fire off. Might also fatten up the idle screws or at least try adjusting them to see if it helps. Dont be intimidated by the carb they are inherently simple, just takes some experience...
  3. Scott06

    carburetor suspect problems

    an electric choke does not need the hot exhaust gases to open a hot air choke does. Here is a short article on choke styles. https://www.carburetor-blog.com/knowledge-base/what-kind-of-choke-do-i-have/ an electric choke uses 12v to heat up a bimetal spring in choke housing when off the spring...
  4. Scott06

    Mercrusier MC 1 outdrive

    Exactly as stated above - the later R/MR/Gen one drives will bolt up to the bell housing on a MC1 transom. You also can mix and match upper and lower units amongst them. It is correct some of the early inline engines with MC-1s used a shorter drive shaft that goes into the coupler. These can...
  5. Scott06

    carburetor suspect problems

    The reason the choke is zip tied open is the aftermarket aluminum intake does not have the choke stove capability in the exhaust cross over. Quadra jets liek this use a divorced choke with a heated spring in the manifold. Someone removed this. A place like cliffs carbs should have An electric...
  6. Scott06

    Need help locating 4-6psi fuel pump for 4.3 w/ 4bbl carb

    This is the one Rick Stephens used for his edlebrock https://www.amazon.com/gp/product/B0076D5NCO/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8&psc=1 thread is here https://forums.iboats.com/threads/which-electric-fuel-pump-vortec-longblock.725512/#post-5500396
  7. Scott06

    Is it possible to put the upper half of the sterndrive on first? Or do I need to put the whole drive on together?

    You will have two issues doing it in halves- rotating the driveshaft to index with the coupler and aligning the shift shaft shoe between upper and lower. I used to move the front of my trailer up /down so that I can put the skeg on a boat and have the driveshaft be at right height to go in...
  8. Scott06

    1983 merCruiser 3.0 4 cylinder.

    Spark plug not seated or exhaust manifold leak
  9. Scott06

    120 HP mercruiser 153 ci 2.5 L issues

    Float and needle and seat are probably hung up or not put together right, also measure fuel pressure. if too high bowl will over flow. When running look down the bore to see if fuel is weeping into bores off boosters at idle. If plugs are black just getting too much fuel, more advance probably...
  10. Scott06

    a carburetor shouldn't spill fuel like this, right?

    did the 8 psi pump overflow the bowl
  11. Scott06

    a carburetor shouldn't spill fuel like this, right?

    Merc spec is 4-7 psi which is normal range for carbed engines for the last 65 years. He may have the wrong pump or cheap aftermarket pump that has too much pressure. Carter makes two universal fit marine pumps that put out 4-6 and 6-8 psi respectively. It’s what Michigan motorz supplies on their...
  12. Scott06

    a carburetor shouldn't spill fuel like this, right?

    Would not add a regulator to overcome a malfunctioning fuel pump
  13. Scott06

    a carburetor shouldn't spill fuel like this, right?

    That fuel looks phase separated would not use it Attached screen shot from merc V8 manual 24 says carbed engines 3-7 psi. airtex makes the fuel pump for merc can find them under that name , must be sure to get low pressure one…9-10 psi is too high
  14. Scott06

    1983 merCruiser 3.0 4 cylinder.

    Suspect your gauge is off below 100 is normally A dead cylinder smoking like hell and tons of blow by. if it runs good why did u do the compression check? Try with another tester engine was up to temp ?
  15. Scott06

    Water in Oil (Again) Head Scratcher

    other possible thoght is head bolts that go into water jacket if they were sealed…
  16. Scott06

    NO SPARK!!!! Thunderbolt IV headscratcher

    Follow troubleshooting guide scott posted. Thee are no temp or oil pressure ignition cutoffs on the tbolt. Only cutoff is man overboard switch. If this is tripped will start on starter then die when key goes to run. use oem sensor in dist only. Lots of failures on aftermarket stuff. Achilles...
  17. Scott06

    Water in Oil (Again) Head Scratcher

    If you look at attached screen shot of my 04 200 sport parts manual it shows in each of the 5.0 engine combos on last line in engine shows rsr. The 4.3 options dont have that . Must be with extra weight on stern they wanted risers. Is not your cause as u havent splashed yet. Do the pressure...
  18. Scott06

    shift issue and running with some noise from lower unit gear

    yes this is a good video
  19. Scott06

    Required HP for slalom skiing

    I don't think you can get a 5.7 in these anymore Merc is going from the 4.5 /250 hp to their (not GM 6.2) to the op - is the 250 the biggest engine? Would think you will be ok but might want to get a ski prop. I was surprised skiing behind my neighbors Larson 208 w a 4.3 mpi (220 hp) yanked...
  20. Scott06

    97 baja hammer 454

    What is your current WOT rpm with the mirage? As stated above really very different applications and props. Bravo 1 doesnt seem to be available in pitches lower than 22" , also seems like a go fast prop not a tube puller . https://www.mercurymarine.com/en/us/propellers/elite-series/bravo-i/...
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