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#1
IP: 73.19.60.36
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Max - Prop anyone?
Anyone using a maxprop on their A4? Looking for sailing performance and some, well, ALOT better reverse. running a 11x7 3 blade now. i was concerned that the freakin shaft always turns albiet slowly when in neutural. anyone running a different transmission? like a hurth or similar?
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'69 Newport 30 MKI Hull #20 |
#2
IP: 97.93.70.7
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The shaft turning in neutral is just the nature of these transmissions.
What is the worry? And how do you think a different prop will help the turning in neutral. I ran the Indigo prop mostly for reverse "control" while backing. Really helped over the 2 blade. Dave Neptune |
#3
IP: 73.19.60.36
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Aww, I dont think I asked my question very well. Ill try again. Im not thinking that a different prop will stop the turning of the shaft. Im aware that it will somewhat and is the nature of the transmission.
With the turning of the shaft, the blades will turn on the maxprop, causing it to not be in a feathered position. I dont mind any way except for when docking and etc. i was wondering what guys experience was with it
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'69 Newport 30 MKI Hull #20 |
#4
IP: 97.93.70.7
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Are you talking about freewheeling in neutral under sail? If so just put it in forward and she'll stop spinning. I never let my Indigo freewheel and barely even noticed it was there.
Dave Neptune |
#5
IP: 73.19.60.36
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no, not that. right now I dont mind the freewheel under sail. i think it is less drag than locked. Im referring to the freewheeking in neutral like when you are docking and maneuvering.
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'69 Newport 30 MKI Hull #20 |
#6
IP: 97.93.70.7
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Why would freewheeling be a problem in docking? There is no real power being delivered to the shaft, just the friction of the unit which is easily stoped by hand.
OR your reverse band is to tight. Neutral is not an actual POINT in the shifter just where the clutches are loose. It is the rotating friction that drives the shaft and like I said with very little power for unwanted thrust in either direction. Dave Neptune |
#7
IP: 76.92.209.59
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Max Prop
Take a look in the thread Titled: "Max Prop 3 Blade 12" prop.
I've had no problems with the Max prop and it has performed flawlessly. Plenty of torque to move the Ranger 33 with an old Atomic 4. Reverse is like driving a car...point and go. Prop walk is all but eliminated. Now that does not account for wind influencing the entire movement of the boat. |
#8
IP: 45.46.251.32
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It'll drive my boat when clean- no current or wind to a shade over 6kts wot. 2100rpm I think.
Reverse is good- lots of walk- but I use that to my advantage.
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Bill McLean '76 Ericson 27 :valhalla: Norfolk, VA |
#9
IP: 73.19.60.36
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do you have a maxprop? i have a three blade, not sure if its an indigo or not. 30 ft newport and i get 6.5kn at 2200 but, my reverse is freakin worthless
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'69 Newport 30 MKI Hull #20 |
#10
IP: 68.0.42.244
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Reverse
Be sure to keep pressure on the shift lever when in reverse as there is no detent like there is in forward.
Also, don’t be afraid to give the A4 lots of RPM in reverse. The tranny is noisy in reverse but that is just the way they are. You should be able to get respectable Astern thrust. Tom Last edited by indigo; 09-03-2019 at 10:04 AM. Reason: Spelling |
#11
IP: 107.77.97.80
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One man's solution to reverse issues
Old school. No issues with Bernouli principle failing at cavitation.
https://r2ak.com/2019-teams-full-race/team-r2ache/
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Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1 "Since when is napping doing nothing?" Last edited by lat 64; 06-16-2019 at 12:45 PM. Reason: spaellin' |
The Following User Says Thank You to lat 64 For This Useful Post: | ||
GregH (06-17-2019) |
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