Trimming an outboard

[braindead0]

I searched around, but trying to search for 'outboard trim' returns tons of stuff, usually about power trim ;-).<br /><br />I'm guessing that I want the outboard to be verticle when up on plane? Are there any good web resources for trimming hints, pictures and the like? <br /><br />I think it's trimmed about right.. but I don't know for sure (I'm mostly a sailer ;-).

 

[JB]

Re: Trimming an outboard

Moving to General Outboard

 

[braindead0]

Re: Trimming an outboard

Just outta curiosity, is the procedure for trimming different with an O/B verses a stern drive? Just curious, I figured it'd be roughly the same..except of course your stern drive probably has power trim ;-)

 

[Hooty]

Re: Trimming an outboard

Ideally, when trimmed properly, you want as much of the lower unit / midsection out of the water as possible and the cav plate parallel with the surface of the water.<br /><br />c/6<br /><br />Hooty

 

[braindead0]

Re: Trimming an outboard

Does the trim affect that much? As my motor is mounted directly to the transom, I can't really adjust the height. I'm pretty sure the cav plate is right at the bottom of my hull (have to double check that).<br /><br />Thanks.

 

[ZmOz]

Re: Trimming an outboard

Yes, the trim does have a big effect. That's why alot of boats have power trim, so you can adjust it while you're going.

 

[braindead0]

Re: Trimming an outboard

I'm guessing that if the motor is riding a little low in the water, I should trim in a bit (which in theory lowers the front and would cause the motor to ride a bit higher)?<br /><br />The stock mount has several positions for trim.. It's currently out around 10-15 degrees or so (at a guess). Hope to be out again this weekend, and I'll watch the engine while my wife brings up up to full throttle.

 

[Hooty]

Re: Trimming an outboard

Your mounting brackets have four holes in them. This is to accommodate raising and lowering the engine on the transom. If necessary, you can use shims between the bottom of the clamp and top of the transom.<br /><br />c/6<br /><br />Hooty

 

[Hooty]

Re: Trimming an outboard

Here's Hooty's 'KatCanDo' trimmed out.<br /><br />

<br /><br />c/6<br /><br />Hooty

 

[Link]

Re: Trimming an outboard

Way cool pic Hooty! Sometimes a picture is worth a thousand words! Nice looking peice of fiberglass! Now tell the truth Hooty! Did you edit the pic and add the star on the port rub rail? Nice touch <br /><br />Link

 

[Hooty]

Re: Trimming an outboard

Wood eye? <br /><br />c/6<br /><br />Hooty

 

[braindead0]

Re: Trimming an outboard

Your mounting brackets have four holes in them. This is to accommodate raising and lowering the engine on the transom. If necessary, you can use shims between the bottom of the clamp and top of the transom.

Not on this one, it's only 25HP.. clamp on (with two 1/4" bolts for security. I can adjust the trim however....

 

[Dhadley]

Re: Trimming an outboard

Hooty, youre draggin too much hull. Do it like this...... <br />

 

[Hooty]

Re: Trimming an outboard

Hey Hadley,<br />Your foto didn't work. Try again, I wanna see.<br />That's an old foto of the 'KatCanDo'. I'm running a cleaver prop now that gets about 6mph more boat out of tha water.<br /><br />c/6<br /><br />Hooty

 

[Dhadley]

Re: Trimming an outboard

Cant seem to get the pic bigger so go here and click on the pic.

 

[Hooty]

Re: Trimming an outboard

Yeah Hadley,<br />That's the ticket alright. <br />Wish I had a V8.<br /><br />c/6<br /><br />Hooty

 

[Link]

Re: Trimming an outboard

hehe Hooty!<br /><br />Link

 

[Dhadley]

Re: Trimming an outboard

Naw, the V6 is plenty. Monty tried a modified V8 on a boat just like that and it overpowered the hull and made it run on one sponson.