motor mount question

el_pescador · #1 03-01-2007, 05:30 PM

whats the rule of thumb on the distance from bottom of keel to bottom of your anti-ventilation plate....some say 1 inch ,justhad a prop man say they want about 2 inches....any1 knows for sure....thanks

macojoe · #2 03-01-2007, 05:40 PM

Well its suppose to be even, and if you have the right size motor it should line up fine.

If you are using a bracket then in changes 1" higher for every 12"back.

randlemanboater · #3 03-01-2007, 08:03 PM

I have read that for each 6 inches of space between the transom and the motor gearcase, you go up 1 inch. I think that rule is whether you have a bracket or not.

Of course I have also read that they make 8 engine inflatable boats for dope dealers.

el_pescador · #4 03-01-2007, 08:19 PM

motor hangs off the transom no bracket

reelapeelin · #5 03-01-2007, 08:37 PM

Quote:

Originally Posted by el_pescador

motor hangs off the transom no bracket

Then I would say MJ's right about it bein'
even... :D ...

macojoe · #6 03-01-2007, 08:41 PM

Yes should be even, what year boat do you have and what size motor shaft do you have??

If you have a 20" Transom with a 25" shaft motor on there it going to be to long, and if you have a 25" boat and have a 20" shaft you going to be to short

They did change the transom height threw the years.

el_pescador · #7 03-02-2007, 02:00 AM

1994 c.c yamaha 150 guessin 25 inch

el_pescador · #8 03-02-2007, 02:03 AM

sorry confused the hull is 1994, motor is 1994 measured from bottom of keel to anti-ventilation plate about 3/4 inch

spareparts · #9 03-02-2007, 10:40 AM

I allways start high and drop it down( its easier to drop it than to pick it up) . Start out about an inch to an inch and a half, above the bottom, while you're running the boat, get some one to walk to the back and see if its throwing up a V shaped spray( allmost straight up), thats a good indication its too low. The V has a fairly deep hull, and its no light weight, i don't think your going to pick a lot of performance at top end by jacking the motor high up, but you never know untill you try it. When I start out too high, it eliminates that nagging notion" I wonder if it would be better the next hole up?". Keeps from screwing with it down the road.

macojoe · #10 03-02-2007, 08:04 PM

you measure the transom from the V in the bottom to top of the transom,
You measure the motor from the top of the Cav plate to were the bracket touches the top of transom.

1" either way I don't think its going to mater!!

Stop thinking about it and start running it! ;)