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Decreased speed issues
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=65412
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Author:  HunterLafever [ Sat Jan 16, 2016 3:57 pm ]
Post subject:  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?

Author:  DUCK HEARSE [ Sat Jan 16, 2016 4:01 pm ]
Post subject:  Re: Decreased speed issues

Check for leaking valves

Author:  SCmudder7071 [ Sat Jan 16, 2016 4:26 pm ]
Post subject:  Re: Decreased speed issues

28 on a stock motor with 3 people?

What your prop look like.

Author:  badams [ Sat Jan 16, 2016 5:30 pm ]
Post subject:  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!!

Author:  craig [ Sat Jan 16, 2016 5:40 pm ]
Post subject:  Re: Decreased speed issues

Which engine do you have?

Carb. or EFI?

Author:  HunterLafever [ Sat Jan 16, 2016 5:55 pm ]
Post subject:  Re: Decreased speed issues

I have carb motor. What do i need to do to check my valves?

Author:  HunterLafever [ Sat Jan 16, 2016 5:58 pm ]
Post subject:  Re: Decreased speed issues

I have been thinking its my prop bc i have been in some sand and logs

Author:  Bigbend [ Sat Jan 16, 2016 6:19 pm ]
Post subject:  Re: Decreased speed issues

Sand? Measure your prop

Author:  HunterLafever [ Sat Jan 16, 2016 6:23 pm ]
Post subject:  Re: Decreased speed issues

What does it need to measure up too?

Author:  Russ [ Sat Jan 16, 2016 7:17 pm ]
Post subject:  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.

Author:  HunterLafever [ Sat Jan 16, 2016 8:03 pm ]
Post subject:  Re: Decreased speed issues

Okay thanks for yalls help

Author:  craig [ Sat Jan 16, 2016 8:23 pm ]
Post subject:  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.

Author:  Russ [ Sat Jan 16, 2016 8:45 pm ]
Post subject:  Re: Decreased speed issues

12.25x10pitch

Author:  Russ [ Sat Jan 16, 2016 8:45 pm ]
Post subject:  Re: Decreased speed issues

I knew it, was trying to show him that the info is there if he looks for it

Author:  deadbird8 [ Sun Jan 17, 2016 1:05 am ]
Post subject:  Re: Decreased speed issues


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