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  1. Q

    Prop question

    I’d be worried about the idea of it only seeing those rpms. It’s either got a silly high pitch prop on it like a 25-27” (unlikely), you are running heavy, or something is wrong with the engine or similar. You need to sort that out first off. I know of a cvx16 Glastron with the same engine. It...
  2. Q

    Can i get 4 blade for my boat? 1979 Evinrude 35hp 2 Stroke

    Why do you want one ? You’d need to have a right good reason to put one on that engine. I’d think.
  3. Q

    Newbie prop/hub ?

    This is an enertia eco prop. Not to be confused with the notoriously fast normal enertia. Still a great prop though for certain hulls and heavy boats. Usually need a fair bit of power and torque to turn them well though. A 15x15 will definitely behave differently to a normal diameter prop of...
  4. Q

    Inside prop damage

    Hi. This happens when the prop has hit the ground or an object. The rubber or plastic sacrificial hub has done its job
  5. Q

    New prop floats on prop shaft and has some play

    I think you have the wrong hub kit or at the least..thrust washer. Or perhaps the hub isn’t pushed all the way home yet. Is the nut tight enough ?
  6. Q

    377mag random misfire

    This is almost certainly an electrical issue. Something isn’t getting it’s proper voltage to it or an ignition component is breaking down intermittently. If it’s always showing a miss fire on the same cylinder…I’d do two things. Change over the HT lead for another cylinders and try replicate it...
  7. Q

    2010 Bryant 210 4.3L MPI A1 G2 With CoolFuel2 - Runs fine for maybe 40 minutes then just dies.

    Hi. I have an mpi. Although this particular thing has t happened to me. I do know that if just one of the many sensors has a tantrum or an electrical issue…it can start or show a chain of random fault events. If it’s effecting the other sensors not getting their 5v supply. So even a loose...
  8. Q

    Tahoe Q5i 4.3L Mercruiser will not turn on

    Was it in gear ?
  9. Q

    2021 mercury 4 stroke 115 not turning over

    Hi. If you mean it was no more than exactly 12v. You’d struggle to start that engine. They either will or they won’t. I’ve one and there is nothing in between. If you mean it didn’t turn the engine over at all..it might have been in gear. But it wouldn’t crank at all like that. You need to have...
  10. Q

    2012 Glastron 225 GT prop

    What 5.0 ? Mpi ? What rpm is shown when you hit the limiter ? I’m presuming you have a quite low ratio on the drive ? Perhaps a 1.6 ? If you are hitting the limiter. What’s she like at acceleration?
  11. Q

    3.0 merCruiser Max out at 4000 RPM.

    Scott. Wouldn’t be one to argue with a fella like yourself most days. But I’d say it defo would. Might not be great out the hole…but I’m sure it would be into the rpm range and good for into the 40’s. Of all the boats I’ve known with a 3.0 and around that size. Without doubt, this particular...
  12. Q

    Rinker Festiva 212 4.3L V6 alpha 1 Gen 2

    Hi. You won’t be getting 5400 rpm I’d think. Or I hope you aren’t anyway. Is the prop ok ? I’d check your rpms first and take it from there. Does the outdrive look as if it’s not original ? What’s the ratio on it ? I’ve been on one of these boats with identical engine and an alpha. It had 21” hi...
  13. Q

    New prop recommendation

    I think you’ve hit the bottom when you first had the rpm drop. Typical sign of a spun prop hub
  14. Q

    2021 Tahoe 1950 Deck boat with 175 HP Merc Pro - Factory prop or update to new prop?

    Hi. There isn’t really any such thing as a factory prop. Or if there is…there shouldn’t be and they should be embarrassed if they are responsible for such a result as this. Are you trimming up to get the hull out the water and as efficient as possible ? what pitch prop do you have now ? What...
  15. Q

    3.0 merCruiser Max out at 4000 RPM.

    Hi. All being normal. You should be able to turn a 21” well. Very quick boats these. May even need a 23”. I’d also add that a ballistic prop is literally thee worst ever prop for using as a bench mark to compare other prop pitches. They behave so strangely and often inconsistent too. Trade mark...
  16. Q

    Wrong prop or bad tachometer....4.3 Mercruiser AlphaOne

    Not a chance you’re doing those rpms. Be great to get the rpm verified before going any further
  17. Q

    Top Speed Issues

    Get rid of the fuel. But I’d also be almost certain that all being well and original…no way that should have b2’s on it. Should have way more pitch than that. Unless something has been changed.
  18. Q

    Could a 4 blade actually be faster?

    Can I be a little cheeky perhaps ? Apologies and disregard if it’s not the case or relevant… Are you fairly new to boating ? If you aren’t, don’t read any further. If you are, it may be the case that you are trimming up too high and having a detrimental effect on things. An ally prop won’t take...
  19. Q

    Could a 4 blade actually be faster?

    Check your speed with gps first. I’d think. I’d also suggest that a 19” ally generic prop will certainly see you under propped and over revving here. a 21” would be better. But depends what 21” To answer the question around will a 4 blade be faster. It’s a tough one to answer. But simply…will...
  20. Q

    Wellcraft 170 American underpropped?

    There is little chance that you’re actually doing 5500 rpm. If you were…you’d be on here asking where the best place to get a new engine is. Reliable as they are…it wouldn’t last long at those rpm. Especially given its age. mid think if you are getting a genuine gps 42mph…you’re about or close...
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