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  1. Scott06

    Rochester 2 jet running rich before and after rebuild

    Gotta remember these carbs are old, Rochester 2jet for automotive stopped in the early 80's, Marine/industrial was done by 1990, which is why merc started with the Mercab. Biggest issue is finding a good core. If I recall there are only two sizes of 2 jets small and large base. Yours should...
  2. Scott06

    No power past 4000 RPMs

    Start with compression test then In addition to this check the ignition timing not only initial timing at idle but that you are getting the correct advance as rpm raises
  3. Scott06

    Breather hose

    I think 32 or 32a are the parts for the hose https://www.marineengine.com/parts/mercruiser-sterndrive-parts/140-gm-181-il4-19721978/3332138-thru-5157668/fuel-pump-fuel-filter-and-carburetor
  4. Scott06

    Rochester 2 jet running rich before and after rebuild

    This is the one I used on my Pontiac Tripower Holley 12-804 - it is a 1-4 psi unit. I had trouble with the gauge which was a summit liquid filled gauge, come to find out that the pressure indicated changes with temp of the gauge, so I had to set it when cold then ignore it... once it was warm...
  5. Scott06

    Water in oil and exhaust manifold...HELP!!

    Replace the manifolds and risers quickly, get it running and change the oil/filter repeatedly until it runs clear. Biggest issue is if the exhaust valves rusted due to water which would show up on a compression test. How was it winterized ? I assume this is a new issue and you've had the boat...
  6. Scott06

    Am I missing a step in gear lube swap?

    That's correct only when reservoir is low or empty, drive would still be full. Nice design vs the gen I where if your input shaft seal goes you fill the bellows with oil and your upper runs dry...
  7. Scott06

    Volvo Penta SX Prop ID

    the Revolution 4 comes in even pitch increments as well so 19 or 20 would probably do you fine. If you see Vensura or Offshore used I would try that but be more inclined to try a 21" given the size of your boat. Since you are currently propped perfect at upper end of range I think you'd find a...
  8. Scott06

    1997 Merc 4.3 V6 LXGen+

    I've used wobble extensions and home bent wrenches as well...
  9. Scott06

    1997 Merc 4.3 V6 LXGen+

    As lou said this isn't normal most likely the hold down clamp for distributor is loose. Set the timing with a timing light and tighten clamp. I believe you will have thunderbolt ignition which needs to be put into base mode to set timing
  10. Scott06

    2003 Mercrusier 5.7 350Mag MPI vs. 2001 Mercrusier 5.7 EFI?

    then get the one is best condition and best maintenance history
  11. Scott06

    3.0 GS - Overheat followed by power steering pump belt snap

    Usually it will come with the dampner only pulley is taken of the dead core engine
  12. Scott06

    Volvo Penta SX Prop ID

    you can never have too many props around... I went through 5 trials before I found two I like and a third aluminum for a early season lots of wood in the lake spare
  13. Scott06

    Rochester 2 jet running rich before and after rebuild

    I would send your carb out to a place like mikes carbs and have them rebuild it. If you have a vacum leak usually you end up needing to fatten up the mixture screws to get it to idle at all. On my Rochester 2 jets I run like 3-3.5 lbs of fuel pressure. If you are confident it s a good...
  14. Scott06

    Boat swamped, let's see if we can get it running...

    they come loose. Last summer my neighbor was loosing PS fluid into the bilge return line off cooler had a loose clamp. when i went over the engine almost all the clamps on the cooling hoses were dangerously loose.
  15. Scott06

    Bravo 3 Oil Leak - Oh No !!!

    the prop sets show both drive rotate the same direction
  16. Scott06

    Am I missing a step in gear lube swap?

    could be look on the bottom of your lube reservoir if there are two wires connected to the harness it should have an alarm.
  17. Scott06

    Am I missing a step in gear lube swap?

    Yes you are ok because drive was full covering the upper gear set. Yiu can refill reservoir as the air will work its way out. Issue is the level alarm should have gone off giving you the warning beep that should come on briefly when you start the engine , should have been constant…
  18. Scott06

    Making sure I purchased the correct coil for a 1996 5.7L

    I believe AD is speaking about he ignition sensor inside the distributor are there two or three wires coming out of it ? I think the original ones had two wires with post connections on the side of the distributor, these were failure prone and replaced with a sealed three wire unit
  19. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Well that will solve the timing issue...
  20. Scott06

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    3.0's are not the quietest engine may be valve train noise Those plugs look rich so likely getting decent fuel supply
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