WOT Adjustment on Trailer

[svdk]

How much water should cover the lower unit when making the WOT Adjustment?

I'm assuming as long as the lower unit is covered, it will be fine. Correct?

I'd like to make this adjustment while on the ramp if possible, but I'm worried about having the boat in gear and at WOT while on the trailer. I don't want to damage the trailer or boat.

 

[Dhadley]

Re: WOT Adjustment on Trailer

Start with putting the trailer back far enough so that the water covers the water pmp. Usually about 2-3" up from the split line will work. You may have to use the trim to get the r's up where you need them.

 

[svdk]

Re: WOT Adjustment on Trailer

Thanks.

 

[imported_Curmudgeon]

Re: WOT Adjustment on Trailer

The WOT you get on a trailer will in no way resemble the free flowing WOT on the water. It's like locking your truck brakes down and revving the engine in "D .. ain't gonna work too well.

 

[Dhadley]

Re: WOT Adjustment on Trailer

It'll work real well, we do it all the time. If we're gonna commpare apples to oranges then remember the orange has a prop that turns in liquid and slips. Controlling that slip allows us to get to the 5500 (or so) rpm that we're looking for.

The apple has tires that turn on a solid. You'd have to hold the front brakes and let the rear tires spin to create the slip that allows the engine rpm to come up.

The way to control the slip on the orange is with the depth of the prop. If you back the trailer in as far as possible then yes, the motor won't rev up like we want. That's why we back down far enough to cover the pump then play with the trim to achieve the wanted rpm.