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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
    20779 Views
    Last post by J. Corbin
    Wed Aug 09, 2017 9:47 am
  • 4 Replies
    146 Views
    Last post by Captain Nemo
    Wed Jul 07, 2021 4:14 pm
  • Van Ness Engineering
    by tbcruiser » Wed Jun 30, 2021 8:19 pm
    0 Replies
    106 Views
    Last post by tbcruiser
    Wed Jun 30, 2021 8:19 pm
  • Re-power 283/MRD "283" with Marine 350
    by Jeff » Wed Jun 23, 2021 7:52 pm
    1 Replies
    111 Views
    Last post by Jeff
    Mon Jun 28, 2021 10:15 pm
  • Loud valves, adjustment needed?
    by joesoboti » Fri Jun 25, 2021 9:53 am
    5 Replies
    159 Views
    Last post by Captain Nemo
    Mon Jun 28, 2021 8:14 pm
  • Changing to Heat Exchange System
    by Jeff » Wed Jun 23, 2021 8:08 pm
    0 Replies
    85 Views
    Last post by Jeff
    Wed Jun 23, 2021 8:08 pm
  • Possible KBL Stuck Valve
    by dave tuttle » Mon May 31, 2021 9:26 pm
    3 Replies
    234 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
    115 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
    1919 Views
    Last post by dougz
    Wed May 26, 2021 3:53 pm
  • 2 Replies
    202 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
    354 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
    1112 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
    10207 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
    898 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
    815 Views
    Last post by trebot
    Sun Feb 28, 2021 7:54 pm
  • 7 Replies
    1298 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
    817 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
    1608 Views
    Last post by drrot
    Thu Jan 28, 2021 2:51 pm
  • 283 Manifolds
    by Peter McBratney » Fri Jan 01, 2021 12:58 am
    6 Replies
    1049 Views
    Last post by rgmxk22
    Mon Jan 18, 2021 12:14 pm
  • Paragon Trans
    by Tom Gruenauer » Fri Dec 18, 2020 10:16 am
    4 Replies
    929 Views
    Last post by rgmxk22
    Tue Jan 12, 2021 10:28 pm
  • KL Engine Running Hot
    by Tmalko » Fri Jan 01, 2021 6:17 am
    9 Replies
    1162 Views
    Last post by Tmalko
    Thu Jan 07, 2021 5:38 pm
  • 1965 283 Spark Plugs and gap?
    by edward.desimone » Wed Aug 26, 2020 10:52 am
    2 Replies
    834 Views
    Last post by rgmxk22
    Wed Dec 23, 2020 11:48 am
  • Chrysler Crown M7 engine manual
    by ccco » Mon Sep 07, 2009 1:06 pm
    7 Replies
    3003 Views
    Last post by mbigpops
    Wed Nov 18, 2020 6:37 pm
  • KL exteriot coolant line
    by trebot » Sat Nov 14, 2020 7:54 pm
    1 Replies
    733 Views
    Last post by Bilge Rat
    Mon Nov 16, 2020 7:17 am
  • Swap KL Carb to downdraft carb
    by trebot » Tue Oct 20, 2020 5:45 pm
    3 Replies
    1375 Views
    Last post by drrot
    Wed Oct 21, 2020 10:24 am
  • Leaking Fuel Pump
    by JimF » Mon Aug 10, 2020 1:06 pm
    12 Replies
    2065 Views
    Last post by sproat3
    Tue Oct 20, 2020 8:53 am
  • Driveline vibration, what’s normal?
    by chris.nackers » Mon Oct 05, 2020 10:07 pm
    11 Replies
    1756 Views
    Last post by chris.nackers
    Thu Oct 08, 2020 8:21 am
  • Clutch problem ?
    by david.peat » Thu Oct 01, 2020 12:00 pm
    4 Replies
    1123 Views
    Last post by david.peat
    Fri Oct 02, 2020 3:50 am
  • M7 adding temp gauge
    by chris.nackers » Mon Sep 28, 2020 9:24 am
    2 Replies
    786 Views
    Last post by chris.nackers
    Tue Sep 29, 2020 9:10 am
  • K engine distributor shaft and oil pump
    by rslingerland » Sat Sep 26, 2020 6:02 pm
    5 Replies
    1159 Views
    Last post by rslingerland
    Mon Sep 28, 2020 8:04 am
  • KL stalling issue
    by trebot » Sun Sep 20, 2020 7:39 am
    5 Replies
    1360 Views
    Last post by jfrprops
    Mon Sep 21, 2020 7:10 am
  • KLC Numerous Issues
    by Trick414 » Wed Jul 17, 2019 8:44 pm
    30 Replies
    7300 Views
    Last post by russ model 199
    Mon Sep 14, 2020 12:19 pm
  • 1959 283 Tachometer off by 30%
    by donald.stahl » Mon Sep 07, 2020 11:15 pm
    2 Replies
    1013 Views
    Last post by donald.stahl
    Tue Sep 08, 2020 8:36 pm
  • Hercules KFL engine noise, help appreciated
    by mark.pauster » Thu Sep 03, 2020 7:05 pm
    16 Replies
    2246 Views
    Last post by Captain Nemo
    Mon Sep 07, 2020 7:10 am
  • KL Vacuum Guage
    by trebot » Mon Aug 31, 2020 11:17 pm
    2 Replies
    860 Views
    Last post by mbigpops
    Tue Sep 01, 2020 11:54 am
  • Fuel Lines
    by gallagh59 » Fri Aug 28, 2020 4:22 pm
    2 Replies
    939 Views
    Last post by gallagh59
    Sun Aug 30, 2020 8:19 pm
  • K Engine Valve Adjustment
    by mikefet » Tue Jun 07, 2011 9:03 am
    10 Replies
    4439 Views
    Last post by [email protected]
    Sun Aug 30, 2020 9:59 am
  • 1941 K Distributor Cap and Rotor
    by Ravenswood » Tue May 05, 2020 1:52 pm
    6 Replies
    1812 Views
    Last post by maritimeclassics
    Thu Aug 27, 2020 10:06 am
  • Ignition problem
    by trebot » Sun Aug 16, 2020 12:16 pm
    2 Replies
    932 Views
    Last post by jfrprops
    Wed Aug 19, 2020 6:58 am
  • K Engine 12V Rewire
    by JohnsBonita » Tue Aug 11, 2020 10:20 pm
    3 Replies
    1011 Views
    Last post by JohnsBonita
    Wed Aug 12, 2020 5:10 pm
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