twin engine alignment

[hardee]

Milehog Said:

" If your toes are closer together than your heels think of that as toe in. If your toes are farther apart than your heels call it toe out. If you're built like me your toes are in the front... "

Jay Said:

"The correct measurement on the Hunkydory is 24" at the props and 23" at the center of steering attachment ears, so the props are towed out."

:? :? :? :?

Jay, assuming the center of the steering attachment is forward, and the props are aft, wouldn't your measurements indicate a "toe-in" situation. I am thiniking that an imaginary pair of lines showing the forces from the steering attachments to the props would intersect forward of the engines. IMHO that looks to me like a toe-in setting. :?: :?: :?: :?:

Not a mechanic

Harvey
SleepyC :moon

 

[Chester]

I really have a hard time believing that a half an inch (or so) makes a hoot of a difference...

I assure you, 5/8" made a huge difference in how our boat handled.
Twin engine inboard boats add toe in to their rudders too.

 

[Chester]

...In the automotive world, toe-in means that the front of the tires are closer than the back of the tires. In a boat, the thrust lines are convergent. There is not an automotive counterpart.

You know, maybe there is. The front tires control the vehicles direction and need toe for stability. The (twin) outboards control the boats direction and use toe in for the same reason.
I 'spose the no feedback steering (with it's clutches 'n stuff) on our boat could be more sensitive than hydraulic steering systems, for instance.

Damn screen doors... :roll:

 

[Hunkydory]

Milehog Said:

" If your toes are closer together than your heels think of that as toe in. If your toes are farther apart than your heels call it toe out. If you're built like me your toes are in the front... "

Jay Said:

"The correct measurement on the Hunkydory is 24" at the props and 23" at the center of steering attachment ears, so the props are towed out."

:? :? :? :?:

Jay, assuming the center of the steering attachment is forward, and the props are aft, wouldn't your measurements indicate a "toe-in" situation. I am thiniking that an imaginary pair of lines showing the forces from the steering attachments to the props would intersect forward of the engines. IMHO that looks to me like a toe-in setting. :?: :?: :?: :?:

Not a mechanic

Harvey
SleepyC :moon

Harvey

Could be sleep deprivation from my weird rotating shift schedule :lol:

 

[hardee]

"...sleep deprivation from my weird rotating shift schedule"

Jay, now there is a real health nemesis. :twisted: We can blame it on Edison and followers. If humans were meant to work nights, they would be born with headlights :shock:

....and it would be toe in, right?

Harvey
SleepyC :moon

 

[Hunkydory]

Yes, Harvey, I agree the set up is toe in even if the props are tow out. :lol: :lol:

 

[lloyds]

I set the engines at 1/2" toe in and took it out yesterday for a test. Ran great but I have Morse steering, not the NFB steering, and I have bad steering torgue to the right so I can't tell if the toe-in is correct or not. I asked the dealer where I bought it to check the fins on the skeg and he said he adjusted them but I think I need more. Even at idle, when I take my hands off the wheel it creeps pretty rapidly to the right.