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Engines & Powertrain

Keeping your powerboat under power is a lot easier with good advice. Post your power systems questions here.
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  • 2 1/2" copper exhaust
    by Tightline5 » Sun Jul 31, 2011 9:17 pm
    32 Replies
    24612 Views
    Last post by J. Corbin
    Wed Aug 09, 2017 9:47 am
  • Where to start?
    by Icanoedou » Fri May 13, 2022 3:07 pm
    1 Replies
    28 Views
    Last post by tparsons56
    Sat May 14, 2022 9:21 am
  • Swapping out 283 for 350 - issues / questions
    by birrellsa » Tue Apr 15, 2008 7:50 pm
    22 Replies
    11932 Views
    Last post by Jeff
    Mon May 09, 2022 8:40 pm
  • Paragon 1XE transmission repair
    by mark.pauster » Sun May 08, 2022 2:11 pm
    0 Replies
    34 Views
    Last post by mark.pauster
    Sun May 08, 2022 2:11 pm
  • KBL , at the end of its life?
    by Jarmo » Tue Feb 01, 2022 3:01 am
    11 Replies
    1019 Views
    Last post by Jarmo
    Fri Apr 08, 2022 5:15 am
  • K Engine Head Corner Stud Mod
    by les » Fri Mar 04, 2022 11:22 am
    1 Replies
    410 Views
    Last post by drrot
    Fri Mar 04, 2022 1:56 pm
  • Zenith carb question
    by trebot » Mon Feb 21, 2022 9:40 pm
    0 Replies
    401 Views
    Last post by trebot
    Mon Feb 21, 2022 9:40 pm
  • Changing to Heat Exchange System
    by Jeff » Wed Jun 23, 2021 8:08 pm
    1 Replies
    2006 Views
    Last post by [email protected]
    Mon Feb 14, 2022 3:38 pm
  • Drive shaft coupler
    by tedcartner » Sun Jan 23, 2022 7:43 pm
    0 Replies
    363 Views
    Last post by tedcartner
    Sun Jan 23, 2022 7:43 pm
  • Changes in Oil Pressure
    by Nauti-Chris » Fri Jan 21, 2022 3:10 pm
    2 Replies
    322 Views
    Last post by Bilge Rat
    Sat Jan 22, 2022 11:30 am
  • 6 or 12 volt battery
    by Woodfam10 » Sun Jan 16, 2022 11:25 am
    2 Replies
    483 Views
    Last post by Woodfam10
    Sun Jan 16, 2022 6:31 pm
  • Old original K motor start up
    by Woodfam10 » Sat Jan 01, 2022 8:39 pm
    6 Replies
    1076 Views
    Last post by Woodfam10
    Sat Jan 15, 2022 6:15 pm
  • Hot K exhaust elbow
    by Nauti-Chris » Fri Jan 14, 2022 3:58 pm
    2 Replies
    408 Views
    Last post by drrot
    Sat Jan 15, 2022 10:41 am
  • MBL with zenith carberator
    by [email protected] » Thu Jan 13, 2022 11:27 am
    1 Replies
    365 Views
    Last post by Bilge Rat
    Fri Jan 14, 2022 7:18 am
  • Water Pump Gasket
    by gallagh59 » Sat Nov 27, 2021 3:04 pm
    1 Replies
    1736 Views
    Last post by rgmxk22
    Sun Jan 09, 2022 10:30 am
  • MCL 175 hp, for sale
    by joesoboti » Wed Dec 22, 2021 1:49 pm
    1 Replies
    583 Views
    Last post by JimF
    Wed Dec 29, 2021 10:08 am
  • Repowering 1956 MCL, best alternate?
    by joesoboti » Mon Sep 13, 2021 2:04 pm
    4 Replies
    1651 Views
    Last post by joesoboti
    Thu Dec 23, 2021 3:31 pm
  • Paragon 25 XE Transmission Question
    by CGSinkovitz » Tue Oct 05, 2021 1:15 pm
    2 Replies
    1749 Views
    Last post by CGSinkovitz
    Tue Oct 26, 2021 9:11 pm
  • Van Ness Engineering
    by tbcruiser » Wed Jun 30, 2021 8:19 pm
    1 Replies
    1556 Views
    Last post by mstjohn9
    Mon Sep 27, 2021 2:51 pm
  • 1956 Sportsman 17 K Engine Prop shaft length
    by [email protected] » Mon Sep 13, 2021 3:07 pm
    7 Replies
    1874 Views
    Last post by mbigpops
    Thu Sep 16, 2021 11:26 am
  • KL Carb Filter Cleaning
    by Tmalko » Tue Aug 31, 2021 9:26 am
    4 Replies
    1533 Views
    Last post by Tmalko
    Fri Sep 03, 2021 4:30 pm
  • Loud valves, adjustment needed?
    by joesoboti » Fri Jun 25, 2021 9:53 am
    6 Replies
    1897 Views
    Last post by trebot
    Fri Aug 27, 2021 8:23 pm
  • Can’t figure it out!
    by Carrpelll » Tue Jul 27, 2021 9:44 pm
    5 Replies
    1791 Views
    Last post by Carrpelll
    Wed Aug 18, 2021 8:08 pm
  • Hercules KFL engine noise, help appreciated
    by mark.pauster » Thu Sep 03, 2020 7:05 pm
    21 Replies
    5458 Views
    Last post by mark.pauster
    Wed Aug 18, 2021 3:51 pm
  • CC Prop #658 (12x13x1 RH)?
    by [email protected] » Thu Jul 29, 2021 9:19 am
    3 Replies
    1476 Views
    Last post by [email protected]
    Tue Aug 10, 2021 3:50 pm
  • Distributer Parts
    by CaptTPT » Wed Aug 04, 2021 11:03 pm
    6 Replies
    1754 Views
    Last post by CaptTPT
    Sun Aug 08, 2021 10:02 am
  • Slipping forward gear and not-engaging reverse gear
    by genovensis » Tue Jul 06, 2021 1:05 pm
    4 Replies
    1864 Views
    Last post by Captain Nemo
    Wed Jul 07, 2021 4:14 pm
  • Re-power 283/MRD "283" with Marine 350
    by Jeff » Wed Jun 23, 2021 7:52 pm
    1 Replies
    1311 Views
    Last post by Jeff
    Mon Jun 28, 2021 10:15 pm
  • Possible KBL Stuck Valve
    by dave tuttle » Mon May 31, 2021 9:26 pm
    3 Replies
    1622 Views
    Last post by dave tuttle
    Thu Jun 10, 2021 4:14 pm
  • Sherwood raw water pump
    by JesusVilla90 » Tue Jun 01, 2021 2:28 pm
    1 Replies
    1263 Views
    Last post by JesusVilla90
    Tue Jun 01, 2021 4:54 pm
  • Generator on Model K
    by dougz » Tue Jun 16, 2020 8:32 pm
    8 Replies
    3724 Views
    Last post by dougz
    Wed May 26, 2021 3:53 pm
  • camshaft replacement 283 flywheel forward
    by [email protected] » Sun May 23, 2021 8:43 pm
    2 Replies
    1535 Views
    Last post by [email protected]
    Mon May 24, 2021 3:06 pm
  • KL thermostat
    by trebot » Tue May 11, 2021 9:52 am
    1 Replies
    1524 Views
    Last post by mbigpops
    Wed May 12, 2021 6:37 pm
  • Prop shaft packing
    by trebot » Wed Mar 31, 2021 2:28 pm
    3 Replies
    2650 Views
    Last post by Bilge Rat
    Thu Apr 01, 2021 7:39 am
  • Carb Cunundrum
    by Randar35 » Mon Feb 18, 2008 7:26 pm
    19 Replies
    12967 Views
    Last post by Jessica
    Tue Mar 23, 2021 7:28 pm
  • Old subject. Oil recommendations. 'W' motors.
    by gwdgfd78 » Fri Mar 12, 2021 1:04 pm
    6 Replies
    2620 Views
    Last post by Bilge Rat
    Mon Mar 15, 2021 7:05 am
  • KL convert to downdraft carb
    by trebot » Thu Feb 25, 2021 11:37 am
    5 Replies
    2588 Views
    Last post by trebot
    Sun Feb 28, 2021 7:54 pm
  • almost done my '57 Chris Craft Cruiser restoration, and seek final engine advice
    by mark.pauster » Thu Jul 30, 2020 9:06 pm
    7 Replies
    3091 Views
    Last post by rgmxk22
    Mon Feb 15, 2021 12:22 am
  • 1930 26' model 111 CC "Contessa"
    by peter.woods » Tue Feb 02, 2021 9:15 pm
    3 Replies
    2328 Views
    Last post by Don Vogt
    Wed Feb 03, 2021 10:13 am
  • Anybody Recognize This?
    by CaptTPT » Sat Jan 23, 2021 12:01 pm
    20 Replies
    4304 Views
    Last post by drrot
    Thu Jan 28, 2021 2:51 pm
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