Out board mount height

[gnrphil]

I know this has been discused but would like some input on my set up. Last time out I looked to see if the cav plate was showing at or above the water line, it wasn't but I was still having some trim issues.

And before anyone says the geko is probably slowing me down !!! nono1 I can assure you he's moved on. On that note is the little hole near the geko's head the speedometer pick up??

[Simple Man]

I can't see the pics but if you can't see the cavitation plate up and trimmed then your motors buried (too far down).

[Juan]

What Simple Man said.. I think your cavitation plate should be just below the surface (about an inch) when running trimmed out and based on where your trim tabs appear to be, I'd say your motor is maybe one mounting hole too low.
Also the lizard is no where near the speedometer pickup hole. The odometer pickup hole is on the sharp edge of the foot nearest the transom.

[gnrphil]

Thanks Juan , found the pick up hole, as it's not a "hole" anymore I passed it by. I'm also thinking the motor is too low especially as there are clear marks on the next holes down.
I belive there is a guideline measurment from the cavitation plate to the bottom of the hull, does anyone know of this??
The previous owner mention having it" turned down to keep the rpms low", couldn't figure out what he ment by that. I think now he was talking about lowering the motor.

[Juan]

That makes sense. When I bought mine, it was the same way,, Had to raise the motor a notch and change the prop to get to the rpms it should be turning.

If your odometer hole isn't a hole any more, it's probably just got something stuck in it. They often get blocked if you run over something like a stick or limb.. Running a small drill bit in the hole should clear it up.

[gnrphil]

Well that's two more jobs on the too do list  She'll be a different boat by the time ahe goes back in the water

[Weaverama]

At WOT and trimmed out I like to see the top of my cavitation plate sitting high and reasonably dry on the water surface with just a little water lapping around the edges. Hard to describe it but YouTube it and you will see. Be careful cleaning out the speedo pick up hole; I recommend a small drill bit but twist it gently in there with your fingers rather than using a drill. Just my .02.

HAPPY THANKSGIVING EVERYONE!

[gnrphil]

Yes I've read up on cleaning the hole, also going to do it with the motor trimed up so the crud doesn't get pushed further in.
Thanks chaps

[Juan]

Definitely use your fingers with the drill bit. There's a plastic fitting and rubber hose behind the entry point on the foot that you could damage with a drill or by using too large a bit.

[gnrphil]

I sure will, I've got GPS speed but hate having a gauge that doesn't work.

[seagristle]

My 2100/150HP is mounted the next hole down. When I used to pull the kids on a towable and made tight turns the prop would ventilate. Always though about dropping it down to see if it improved in the turns...

[gnrphil]

Seagristle, my old boat would do that so I got used to trimming down some when towing a tube or making tight turns. Tubeing days are over I think as the kids are getting older so that shouldn't be an issue

[seagristle]

Cool. Let us know how she runs when you get out there!

[gnrphil]

I sure will, gonna be a while as I've still got to do the infamous wiring and new bottom paint.
I'll update this thread for sure.