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apine1187
MMT Member
Joined: Wed Sep 25, 2013 3:22 am Posts: 8
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2014 GTR 35 losing power
I am looking for some suggestions, my GTR 35 has 200 hrs and for some reason struggles to get up on plane with light load. RPM’s out of the water seem fine but under a load i can only get 3,100. Any help wohld be appreciated .
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Sun Apr 29, 2018 3:20 am |
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brycecheramie
MMT 1000 Club
Joined: Thu Nov 04, 2010 7:38 am Posts: 4323 Location: Cut Off, La.
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Re: 2014 GTR 35 losing power
_________________ Refurbishing a Prodrive
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Sun Apr 29, 2018 5:30 am |
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Woodiebuster
MMT Elite Member
Joined: Wed Mar 03, 2010 7:00 pm Posts: 6060 Location: Choudrant, La
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Re: 2014 GTR 35 losing power
Valves could definitely be the culprit, not a bad idea to check them periodically. It could be a number of things though. Swap your fuel with good fuel and run some sea foam through it. Also check for air leaks or leaks in the fuel line.
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_________________ CSM Custom 18x42 Battleship with a 36 PD beating you to the hole My Rig (Old Motor) viewtopic.php?f=5&t=45193
(New Motor) viewtopic.php?f=5&t=54733 Stumps Fear Me
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Sun Apr 29, 2018 10:17 am |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: 2014 GTR 35 losing power
Yeah I'm voting either valve lash or valve leakage. Get a leakdown done. Might be time to get the heads worked.
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Sun Apr 29, 2018 4:27 pm |
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DmaxHunter
MMT 1000 Club
Joined: Wed Jan 18, 2012 7:21 pm Posts: 2207 Location: North Alabama
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Re: 2014 GTR 35 losing power
_________________ 2014 PRODIGY 1754 (#19) 2014 5500 BAMF HDR RETRO SOLD
2010 Gator Tail Gator Series 18x54 pushed by a 2020 40GTRXD
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Sun Apr 29, 2018 5:16 pm |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: 2014 GTR 35 losing power
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Sun Apr 29, 2018 6:28 pm |
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DmaxHunter
MMT 1000 Club
Joined: Wed Jan 18, 2012 7:21 pm Posts: 2207 Location: North Alabama
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Re: 2014 GTR 35 losing power
_________________ 2014 PRODIGY 1754 (#19) 2014 5500 BAMF HDR RETRO SOLD
2010 Gator Tail Gator Series 18x54 pushed by a 2020 40GTRXD
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Sun Apr 29, 2018 7:02 pm |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: 2014 GTR 35 losing power
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Mon Apr 30, 2018 5:20 am |
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apine1187
MMT Member
Joined: Wed Sep 25, 2013 3:22 am Posts: 8
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Re: 2014 GTR 35 losing power
I did have compression checked and both sides were good, changing plugs next then going to check valve lash. What are thoughts on timing?
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Tue May 01, 2018 5:08 am |
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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: 2014 GTR 35 losing power
It's fine. Check valve lash first, and when you say good, what was the compression?
#CFFITR #TheGhostBoat #whoneedsphysicsihaveamudmotor
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Tue May 01, 2018 6:08 am |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: 2014 GTR 35 losing power
Good compression doesn't mean you don't have valve leakage
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Tue May 01, 2018 7:00 am |
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KJH
MMT Addict
Joined: Tue Jun 09, 2009 9:09 pm Posts: 520 Location: Nebraska
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Re: 2014 GTR 35 losing power
How do you check for valve lash and leakage? Is this something that's easy to do?
_________________ 1854 Brother Breaux and Boss 40XP and 90hp outboard.
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Thu Aug 16, 2018 12:34 pm |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: 2014 GTR 35 losing power
Get a set of feeler gauges at autozone for $6 then follow this Valve lash: https://youtu.be/mH73IdavxzILeak down will require a leak down tester. May want to just go to a local Engine repair shop and pay them like $60 to do that quickly for you. Sent from my iPhone using Tapatalk Pro
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Thu Aug 16, 2018 12:44 pm |
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KJH
MMT Addict
Joined: Tue Jun 09, 2009 9:09 pm Posts: 520 Location: Nebraska
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Re: 2014 GTR 35 losing power
Awesome. Thanks.
_________________ 1854 Brother Breaux and Boss 40XP and 90hp outboard.
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Thu Aug 16, 2018 1:03 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: 2014 GTR 35 losing power
Ill put money on 20-40% leakage from the intake valves
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Thu Aug 16, 2018 5:04 pm |
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kirk
MMT F.E.
Joined: Thu Apr 18, 2013 5:52 pm Posts: 870 Location: SW LA
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Re: 2014 GTR 35 losing power
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Thu Aug 16, 2018 7:21 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: 2014 GTR 35 losing power
_________________ Bayou Surface Drive 337-351-0362 Tarkington, TX 77327
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Fri Aug 17, 2018 9:13 am |
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