Here are two videos seems my unit might be counter rotation? It's a 2008 Tahoe deck boat 215. Shift arm I'm not seeing any major issues other than it's not connecting good full forward, and the shift shaft isn't perfectly straight. The round thing is there and it moves.
your boat is a standard rotation setup. The drive is also standard looking at the prop.
So, with the shift rod in a straight line the prop will lock CCW .that is what we call locked in fwd
In fwd the prop turns CW
You would have to have the manual to understand how the gears work. The driveshaft turns clockwise and in fwd gear the prop turns clockwise. If you move the rod so thats its in a straight line (fwd) the gears are engauged for fwd, but if you let the prop over run itself, (turn it clockwise) the shift rod will turn ccw into neutral.
If you did have twins and one was a CR unit , you would be in reverse to remove it
Ok, but I'm confused what's the problem here if you have any ideas? Were you able to see the youtube videos I posted? The prop is certainly not turning clock wise at the prop with the shift rod straight and in forward.
The prop is not turning this direction in forward it's doing this in reverse:
Also it does have a "C" printed on the drive shaft. Thanks for your help trying to better understand so try to bare with me please
With the shift rod pointing in a straight line(fwd) and turning the inputshaft CCW (between your legs with the splined end facing in front of you), what direction does the propshaft turn?
In forward turning the shaft CCW makes the propshaft spin clockwise. I guess moving it at the prop was putting it out of gear or something? I wasn't turning at the shaft.
Ok I understand now it is trying to lock but I have to hold the shifter to kinda make it lock otherwise it just makes a click noise and moves the shifter rod. I assume when it's installed the shift rod won't move so this isn't an issue right? So it seems to me that the shift cable stuff might be off since the shift shaft is not lining up right? let me know if you guys can't see those videos I posted I can post them elsewhere.
wait reading that again I guess I am still confused. Forward is trying to lock CW and it's turning the shaft when turning prop CCW. So basically the reverse of what you are saying.
with the rod straight and putting slight pressure on the prop CCW the prop will feel locked.
turning the prop CW while holding slight pressure on the shift shaft straight it will ratchet
I had a hard time with this until I had it on the bench and really looked at the diagram. The prop will ratchet in the direction that the shifter is in. In other words, on a standard rotation drive (what you have) with the drive in forward the prop will rotate forward while making a ratcheting sound. Watch this video at 0:46, he has the drive in forward and you can see how it rotates.
no, in forward gear you turn the prop CCW and it feels locked this is called locked in fwd gear. In foward gear with the motor running the prop is turning CW in foward you can see in that video hes turning the prop CCW with the shaft straight and the prop is locked. if he turns the prop, the inputshaft will turn in the opposite direction to line the splines up to install the drive
Ok so here is the confusion I guess. In forward it's freely turning CW, but when I turn it CCW it does have more resistance, but it moves the shaft. So I guess this is to be expected? I though since it's moving the shaft in CCW that means it's Counter-rotating. So I was more concerned with the shaft moving rather than freely spinning.
When in forward, the power is applied in a clockwise direction, so the prop cannot turn CCW.
Opposite is true in reverse, prop spins freely in the reverse direction with only gear chatter as the angled dogs ratchet over the gear teeth. But the propeller will not turn in forward direction as that locks in the gear dogs.
There's probably too many of us explaining this so I'll shut up after this comment but it's what helped me understand the shift mechanism when I had my drives home
Put the drive in forward (shift shaft pointing to 12oclock), hold the shift shaft there with your left hand. With the other hand, turn the prop CCW. Does it lock into place? With some moderate force turning the prop CCW will slowly rotate the Ujoint (you're feeling the resistance of the impeller inside the water pump housing)
That's when it clicked for me as to how the shifting works. I'll bow out now, these other guys are way smarter than me.
in the second video 1"10 mark you have the control box in full fwd and the lower shoe must me in a straight line. make the shift cable adjustment for that first
Folow that video to install the drive. turn the shift shaft clockwise so its in a straight line , turning the prop CCW will lock the propeller. The propeller needs to be in this locked position so you can turn the prop backwards CCW in fwd gear to line up the inputshaft splines into the coupler. Once the drive is installed and the nuts tightened the prop will be solidly locked turning it CCW because your in fwd trying to turn the motor backwards. Turning the prop CW you will feel a heavy ratcheting fell in the prop.This is the gear dogs over rideing each other.
