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| Loss of top end? https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=12724 |
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| Author: | b_coonass [ Tue Sep 28, 2010 8:15 pm ] |
| Post subject: | Loss of top end? |
What could cause this? I have been noticing that i boat has been running slower so i gps'd it yesterday and sure enough I am only getting 19-20mph with a new prop an 2 people, compared to getting 23-24mph with 2 people! |
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| Author: | DeathMetalDukk [ Tue Sep 28, 2010 8:15 pm ] |
| Post subject: | Re: Loss of top end? |
check yer rpm's. |
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| Author: | b_coonass [ Tue Sep 28, 2010 8:22 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | quackconsumer [ Tue Sep 28, 2010 8:22 pm ] |
| Post subject: | Re: Loss of top end? |
Did you get da correct new prop? |
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| Author: | DeathMetalDukk [ Tue Sep 28, 2010 8:23 pm ] |
| Post subject: | Re: Loss of top end? |
Governor adjustments wandering perhaps? Need to get a tach so you will know for sure. |
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| Author: | b_coonass [ Tue Sep 28, 2010 8:26 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | b_coonass [ Tue Sep 28, 2010 8:27 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | DeathMetalDukk [ Tue Sep 28, 2010 8:28 pm ] |
| Post subject: | Re: Loss of top end? |
Like vibration causing the screw to turn, losing the setting. Just a thought. |
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| Author: | b_coonass [ Tue Sep 28, 2010 8:30 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | DeathMetalDukk [ Tue Sep 28, 2010 8:32 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | b_coonass [ Tue Sep 28, 2010 8:47 pm ] |
| Post subject: | Re: Loss of top end? |
| Author: | bbb [ Wed Sep 29, 2010 10:01 am ] |
| Post subject: | Re: Loss of top end? |
10x6 is for a 35HP Website says a 10x4 for the 31hp, though I don't see a 10x4 for sale, but do see the 10x5. Is this a new prop from GD or a re-build? Some of the re-builds have extra heavy cup and take away from rpms and speed also. |
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| Author: | mcnemar1982 [ Wed Sep 29, 2010 10:18 am ] |
| Post subject: | Re: Loss of top end? |
Is one of da people real fat? Just askin. |
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| Author: | b_coonass [ Thu Sep 30, 2010 5:57 am ] |
| Post subject: | Re: Loss of top end? |
| Author: | b_coonass [ Thu Sep 30, 2010 5:58 am ] |
| Post subject: | Re: Loss of top end? |
| Author: | mcnemar1982 [ Thu Sep 30, 2010 6:59 am ] |
| Post subject: | Re: Loss of top end? |
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| Author: | bbb [ Thu Sep 30, 2010 9:43 am ] |
| Post subject: | Re: Loss of top end? |
10x5, 10x6, 10x11 GO-DEVIL PROPELLER -STAINLESS STEEL -AVAILABLE WITH HEAVY CUP -SUPER WEEDLESS -USED ON THE FOLLOWING GO-DEVIL ENGINES: 10x9 - 9 hp Honda Crawfish Model with Clutch 10x4 - 31 hp Vanguard 10x6 - 35 hp Vanguard -WARRANTY (see below) -PRICE: $245 |
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| Author: | b_coonass [ Thu Sep 30, 2010 6:30 pm ] |
| Post subject: | Re: Loss of top end? |
Ok bb, yea i get u Dude!!! I dont care what it says on the GD website! I had the same prop before and I was running 23-24mph an aroun 3700-3900 RPM's! |
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| Author: | cb5331 [ Thu Sep 30, 2010 6:43 pm ] |
| Post subject: | Re: Loss of top end? |
Sounds like you need to go find some sand 
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| Author: | jrp267 [ Thu Sep 30, 2010 7:34 pm ] |
| Post subject: | Re: Loss of top end? |
Except go devil changed the way they make there props and then changed the number for cup. So a 10x6 from before is no longer a 10 x6 |
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| Author: | b_coonass [ Thu Sep 30, 2010 8:13 pm ] |
| Post subject: | Re: Loss of top end? |
This 31 is my second go-devil and I always have ran a bit bigger prop than what their rated for, and NEVER had this problem! |
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| Author: | bbb [ Fri Oct 01, 2010 6:18 am ] |
| Post subject: | Re: Loss of top end? |
Where is the old prop that was running 23-24? Might want to put it back on and see what the motor does. If it's not the prop and it's not the throttle assembly, might be time for a leak down test. |
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| Author: | bloodorange [ Fri Oct 01, 2010 10:43 am ] |
| Post subject: | Re: Loss of top end? |
Whats a leak down check? I am having the same problem with my honda 24 lt mudbuddy. Been running a 9x6 and right around 3500 rpms put on a new prop and now 3100 rpms. I am going to gps it this afternoon and see what kind of speed I am getting. I may have to go with a 9x5 prop. I am running it on a 16 48 war eagle. |
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| Author: | bbb [ Fri Oct 01, 2010 11:33 am ] |
| Post subject: | Re: Loss of top end? |
http://autos.yahoo.com/maintain/repairq ... 057_1.html |
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| Author: | b_coonass [ Sat Oct 02, 2010 7:37 pm ] |
| Post subject: | Re: Loss of top end? |
After tightning the govonor screw its running a hell of alot better! Went huntin this mornin with 4ppl and gear, Ran 21mph! |
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