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  1. alldodge

    4.3 omc cobra no start

    Edit: wet is no good
  2. alldodge

    Exhaust Flappers too tight

    I'm searching part numbers at mercruiserparts.com Looking for any comments on supersession Wanted to see how the flappers fit or attempt to fit in location. I have a set of the flappers on the shelf, and they fit fine in my BBC Y pipe, but yours is a 1988, so I have nothing to compare
  3. alldodge

    Top speed

    Boat magazine list it reached 54.2 mph with the 5.7 efi
  4. alldodge

    Random knock over 4k RPMs...

    Wow, its a wonder your coupler is still working To get the drive off, you will probably need to raise the bottom nuts up
  5. alldodge

    4.3 omc cobra no start

    Where are you checking for spark? If checking at the coil wire, see if the rotor is turning
  6. alldodge

    Exhaust Flappers too tight

    Unable to find Y-pipe 44265C but I am finding 44266T1 which is superseded by 8M0115149 According to @achris link your using the correct replacement shutters https://forums.iboats.com/threads/mercruiser-v6-v8-i-o-exhaust-shutters-explained-only-applies-to-4-systems.641688/ Can you post a pic?
  7. alldodge

    Engine Cover Rehab

    Search Leather handles
  8. alldodge

    Adding cleats to a floating HPDE dock..

    Dock accessories https://www.cubedocks.com/dock-accessories.html
  9. alldodge

    9mm Ammo Recommendations

    Have not used it If your ok with not reloading could get Wolf 115gr
  10. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Double check your tach
  11. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    I'm out of ideas what could cause it Same 22P prop, same rpm at WOT If the ratio was higher (2.0 or 1.8) then the prop would be spinning faster and would be going faster unless the prop has cavitation. If there is air getting to the prop from to high trim, or other method it would allow the...
  12. alldodge

    Stalls out on idle after 30 to 45 minutes. Mercruiser 4.3 TKS Thunderbolt V Alpha II

    Vapor lock doesn't happen with the carb, would need to be EFI or MPI The problem is the carb needs rebuilt again or adjusted The float can be adjusted correctly but the needle seat could be leaking. The carb has to much fuel in the bowl and this is the reason it drips and or floods
  13. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    If your using the boat speedometer then it could be its most likely doing the same as before, just the issue with the pickup hole in the drive. Might be partially clogged. Now if your using a GPS then I need to scratch my head some more :unsure:
  14. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Your getting 20 mph at WOT, meaning rpms go to 4800. You should also have to reduce the throttle because the motor will over rev, correct?
  15. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Maybe I should retract for a minute. With the old drive was the boat on plane at 25 MPH? With new drive at 18 MPH is the boat on plane or plowing? Can you get WOT of 4800 rpm
  16. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Not finding where a 1.81 tooth count for a diesel is different then the standard. Even the X drives are 29/27 With 22 props the slip is real bad
  17. alldodge

    Volvo Penta overheating issues

    Might be sucking air or other Have you verified it is over heating with an IR temp gun measuring the thermostat housing? Get a piece of clear hose and a barbed hose fitting at the hardware store. Place the short piece between thermostat housing and hose from the raw water pump.
  18. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Going from 2.2 to 1.8 your rpm's will be lower and speed would be higher. The 1.81 would have 29/27 gears in the upper For the rpm's to go up and speed down using the same props, the ratio would be higher What pitch props do you have?
  19. alldodge

    mercruiser 7.4 mpi can't figure out the ratio

    Bravo ratios
  20. alldodge

    power trim

    Something is worn and probably needs replacing
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