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  1. tpenfield

    Merccruiser taking on water.

    More likely a cracked cylinder head, if the oil & gas are coming from the engine and not from residual fluids in the bilge.
  2. tpenfield

    Mercruiser 7.4L MPI Throttle Adjustment ???

    Thanks @Fun Times . . . I have the 'standard' (ie. bulky) Quicksilver controls. Your method of checking the TPS and linkages sounds like a good plan. The Stbd engine TPS goes to 99%, so I'd like to get the Port engine close to that.
  3. tpenfield

    Mercruiser 7.4L MPI Throttle Adjustment ???

    Thanks, - Yes I noticed a mention of 2 different attachment points in the Merc manual - One for the standard Quicksilver controls and one for the Merc Zero-effort controls. So, I'll check that out and compare to the Stbd engine. I am also wondering if there is any adjustment up at the helm...
  4. tpenfield

    Mercruiser 7.4L MPI Throttle Adjustment ???

    Greetings, I have a question about adjusting the throttle linkage on one of my Merc 7.4L MPI engines. The Port engine throttle linkage is currently out of adjustment and only reaches 84% of the throttle range on the TPS read-out (Rinda Diacom) This with with the throttle lever at the helm...
  5. tpenfield

    Bad day on the water - NEED ADVICE!!

    Essentially, you are asking the shop to cut corners and that is something they are not likely to do. Keep in mind that your expectations of the repair may not reflect cutting corners and having subsequent issues. I agree with the other posts . . . everything behind the motor is suspect...
  6. tpenfield

    Leave outside with drive off?

    Leaving the outdrive off is done all the time for winter storage, or repairs. The only concern is plugging up the hole (with a rag or something) so the critters don't make a home in your boat.
  7. tpenfield

    Primary and Secondary Imbalance - Alfadan Outboard Motor ?

    I also wonder if having opposing cylinders on the same crankshaft/bearing point (aka 'flat' twins/quads) would address the imbalance ? Not as compact a design though . . .
  8. tpenfield

    Primary and Secondary Imbalance - Alfadan Outboard Motor ?

    Interesting stuff . . . I am just wondering what they (Alfadan) has figured out about the imbalance, where others have not :unsure:. I assume that is what allows them to go up in cylinder size. As far as engine performance, I often like to look at HP/Litre as a guide. The traditional style...
  9. tpenfield

    7.4L Impeller replacement attempt

    The impeller will not turn if the vanes are facing the wrong way . . . BTDT. So, probably not the cause. Look elsewhere for coolant flow issues.
  10. tpenfield

    Gas Appearing in bilge

    How does the song go ??? . . . there's a hole, there's a hole, there's a hole in the bottom of the tank. :oops:
  11. tpenfield

    Time for a ‘new’ boat?

    I went to look at the Cruisers 328 today. It has the 350 HP engines, not the 380’s. lots of rust in the serpentine belt pulleys - so probably has not been run in a while.
  12. tpenfield

    Time for a ‘new’ boat?

    The Cruisers 328 has the V-P 380 HP engines, which are based on the new generation GM 6.0L blocks with variable valve timing. So, yes the HP would be about 100 more than the Formula.
  13. tpenfield

    Time for a ‘new’ boat?

    Yes, I guess the BMW wouldn't be able to pull that sort of thing 😆 I got an offer on the boat today, so things are moving forward, pending a survey. Also have a couple of folks interested in seeing the boat, in case the offer falls through. In other news . . . probably going to take a look...
  14. tpenfield

    Time for a ‘new’ boat?

    I am thinking about a trailer for the next boat . . . :unsure::D
  15. tpenfield

    Time for a ‘new’ boat?

    Thanks for the comments guys. Yes, if I hit the lottery (tomorrow) it will definitely be a brand spanking new outboard powered boat. Plan 'B' would be a boat that is of the size, people capacity and features that we want, as well as fitting into a modest 6-figure budget. So, that keeps the...
  16. tpenfield

    Primary and Secondary Imbalance - Alfadan Outboard Motor ?

    It seems like they have (somehow) addressed the secondary imbalance issue and can then go with larger cylinders. It seems to imply that there is a practical limit to cylinder & piston size (i.e. weight) . . . so more power tends to require more cylinders in conventional designs. I know that...
  17. tpenfield

    Primary and Secondary Imbalance - Alfadan Outboard Motor ?

    Oopps, my bad . . . Here is a better link . . . https://www.alfadan.com/
  18. tpenfield

    Primary and Secondary Imbalance - Alfadan Outboard Motor ?

    @Scott Danforth . . . & others www.startengine.com I just came across this conceptual engine that supposedly addresses the issue of primary and secondary imbalance of internal combustion engines, which limits the size of the cylinders. I am wonder if anyone has come across this and what...
  19. tpenfield

    Time for a ‘new’ boat?

    My lottery win has not come through, so I'll be getting a used one . . . 2015 ish. There is a 2015 Cruiser 328 CX a few miles from me, but it looks a little neglected. I have not seen it up close yet. I did look at the Aviara boats a few years ago at the Palm Beach Boat Show. Interesting...
  20. tpenfield

    Time for a ‘new’ boat?

    Looks like we'd be getting the Cruisers 328 w/ sterndrive (I/O) :unsure::oops:🤪
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