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| New owner 35 HP VAnguard GD Surface Drive http://mudmotortalk.com/mmt_v2/viewtopic.php?f=2&t=45614 |
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| Author: | Hellsbells [ Thu Sep 19, 2013 7:43 am ] |
| Post subject: | New owner 35 HP VAnguard GD Surface Drive |
I have a 35 HP Vanguard Go Devil surface drive. It is 4 years old and new to me. I have a few questions and need some help. The motor is mounted on a 1648 go devil boat. I can only get around 20 MPH out of it right now. The motor was in meed of some maintenance and I have completed most of it. The only 2 things left to do right now are installing a new kill switch and a new tiny tach. Neither are working. So I do not know how many rpms I am turning. What should it turn (max) in water and out? I did just yesterday change out the air filter which looked horrible. Could this cause a loss of rpms and speed? I have not had a chance to run it yet. My other concern would be the prop. It has a 3 blade on it and it looks a little worn to me. It is smooth and rounded, much different from my boat props. Should the blades be edged and defined? What is the best prop for this motor? I would appreciate any input on the above. Thanks |
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| Author: | postalpaul [ Thu Sep 19, 2013 7:49 am ] |
| Post subject: | Re: New owner 35 HP VAnguard GD Surface Drive |
O |
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| Author: | odass [ Thu Sep 19, 2013 5:23 pm ] |
| Post subject: | Re: New owner 35 HP VAnguard GD Surface Drive |
should turn around 4300 out of water |
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| Author: | cmk07c [ Thu Sep 19, 2013 7:27 pm ] |
| Post subject: | Re: New owner 35 HP VAnguard GD Surface Drive |
Even with a smoked prop I would think it would run better. You should see 30 when you get it fixed. |
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| Author: | Team Camo [ Fri Sep 20, 2013 7:06 am ] |
| Post subject: | Re: New owner 35 HP VAnguard GD Surface Drive |
Clogged air filter could have been killing your rpm, causing slow top speed, but a worn prop will also cause poor speeds. Really need to replace the tach to find out where rpm is at to try to diagnose speed issues. If not turning rpm = slower speeds, if turning rpm but have worn prop = slower speeds (as well as vibration & tendency to try to climb out of water). |
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