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HunterLafever
MMT Member
Joined: Mon Dec 28, 2015 9:19 am
Posts: 10
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 Decreased speed issues I have a stock 2016 MB HDR 35 on a 1751 f4. I have around 11hrs on motor been noticing speed has seemed slower. When i first got the rig i could run 28mph with 3 people and some gear. Now 2 people with dozen dakotas 2 shotguns im around 25.
Any thoughts or opinions?
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| Sat Jan 16, 2016 3:57 pm |
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DUCK HEARSE
MMT 1000 Club
Joined: Fri Apr 06, 2012 8:48 am
Posts: 3161
Location: Alabama
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Re: Decreased speed issues Check for leaking valves
_________________
Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.
- Mark Twain
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| Sat Jan 16, 2016 4:01 pm |
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SCmudder7071
MMT 1000 Club
Joined: Mon Feb 07, 2011 12:10 pm
Posts: 3024
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Re: Decreased speed issues 28 on a stock motor with 3 people?
What your prop look like.
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1754 Extreme/LAProp Stage 2 GTR
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| Sat Jan 16, 2016 4:26 pm |
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badams
MMT Pro Member
Joined: Fri Dec 12, 2014 6:02 am
Posts: 51
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Re: Decreased speed issues 28 mhp with a stock motor. I cant get 28 out of a modded 36 PD with 2 guys and gear in a 17/48 phowler!! Thats Awesome!!!!! Check your valves and valve lash!!
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| Sat Jan 16, 2016 5:30 pm |
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craig
MMT Elite Member
Joined: Tue Jan 13, 2009 7:53 pm
Posts: 7515
Location: Chauvin
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Re: Decreased speed issues Which engine do you have?
Carb. or EFI?
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1750 GatorTail Extreme/Stage 3 37 GTR HD
Procrastination is a lot like masturbation. Sure it sounds great at the time but, in the end your only f--k--g yourself.
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| Sat Jan 16, 2016 5:40 pm |
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HunterLafever
MMT Member
Joined: Mon Dec 28, 2015 9:19 am
Posts: 10
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Re: Decreased speed issues I have carb motor. What do i need to do to check my valves?
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| Sat Jan 16, 2016 5:55 pm |
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HunterLafever
MMT Member
Joined: Mon Dec 28, 2015 9:19 am
Posts: 10
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Re: Decreased speed issues I have been thinking its my prop bc i have been in some sand and logs
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| Sat Jan 16, 2016 5:58 pm |
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Bigbend
MMT Pro Member
Joined: Sat Dec 11, 2010 6:25 am
Posts: 493
Location: SWGA
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Re: Decreased speed issues Sand? Measure your prop
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| Sat Jan 16, 2016 6:19 pm |
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HunterLafever
MMT Member
Joined: Mon Dec 28, 2015 9:19 am
Posts: 10
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Re: Decreased speed issues What does it need to measure up too?
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| Sat Jan 16, 2016 6:23 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
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Re: Decreased speed issues *facepalm* valve lash: search the forum, or Google it, videos on youtube.
Prop diameter: listed on the hub of your prop, since it's a big blade.
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| Sat Jan 16, 2016 7:17 pm |
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HunterLafever
MMT Member
Joined: Mon Dec 28, 2015 9:19 am
Posts: 10
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Re: Decreased speed issues Okay thanks for yalls help
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| Sat Jan 16, 2016 8:03 pm |
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craig
MMT Elite Member
Joined: Tue Jan 13, 2009 7:53 pm
Posts: 7515
Location: Chauvin
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Re: Decreased speed issues If you've been running sand it's probably a combination of valves and worn prop.
ALL of the carb'ed engines need a good valve job after you put 20-30 hrs. on the engine.
I'm not sure exactly what the MB props measure when new. IF deadbird8 doesn't chime in on this post send him a PM and he can fill you in on MB prop specs.
_________________
1750 GatorTail Extreme/Stage 3 37 GTR HD
Procrastination is a lot like masturbation. Sure it sounds great at the time but, in the end your only f--k--g yourself.
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| Sat Jan 16, 2016 8:23 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
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Re: Decreased speed issues 12.25x10pitch
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| Sat Jan 16, 2016 8:45 pm |
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Russ
MMT 1000 Club
Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
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Re: Decreased speed issues I knew it, was trying to show him that the info is there if he looks for it
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| Sat Jan 16, 2016 8:45 pm |
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deadbird8
MMT 1000 Club
Joined: Wed Feb 04, 2009 7:50 pm
Posts: 3833
Location: Old East Dallas, Texas
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Re: Decreased speed issues
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Excel 1851F4 w/ MB35HD+R CDI with a little bit of this and little bit of that
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| Sun Jan 17, 2016 1:05 am |
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