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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
    38440 Views
    Last post by J. Corbin
    Wed Aug 09, 2017 9:47 am
  • Paragon hard to get out of forward
    by [email protected] » Thu May 29, 2025 8:23 am
    1 Replies
    150 Views
    Last post by liquidsteel
    Tue Jun 10, 2025 8:01 pm
  • Prop size/pitch for Graymarine 120 in a Sportsman 18
    by JacobErdey » Tue May 27, 2025 1:07 pm
    0 Replies
    83 Views
    Last post by JacobErdey
    Tue May 27, 2025 1:07 pm
  • KLC Manifold Rear Leak / Rust Hole
    by [email protected] » Mon May 26, 2025 2:35 pm
    0 Replies
    87 Views
    Last post by [email protected]
    Mon May 26, 2025 2:35 pm
  • Chrysler Ace M6 Starter - Help!
    by Cfegeley » Fri Apr 25, 2025 8:38 am
    0 Replies
    324 Views
    Last post by Cfegeley
    Fri Apr 25, 2025 8:38 am
  • KBL , at the end of its life?
    by Jarmo » Tue Feb 01, 2022 3:01 am
    21 Replies
    13469 Views
    Last post by Jarmo
    Fri Feb 07, 2025 5:07 am
  • KBL, Conversion to Closed cooling?
    by Jarmo » Tue Sep 27, 2022 2:57 am
    1 Replies
    5184 Views
    Last post by Jarmo
    Fri Feb 07, 2025 4:52 am
  • 1959 Ski Utility GM 350 V8 Backfiring Continues
    by Miss Kris » Thu Aug 01, 2024 10:00 am
    3 Replies
    1129 Views
    Last post by [email protected]
    Fri Jan 17, 2025 2:42 pm
  • '56 CC Hercules K model engine overhaul
    by Rodger » Sat Feb 25, 2006 1:18 am
    4 Replies
    6452 Views
    Last post by [email protected]
    Sat Dec 21, 2024 12:54 pm
  • Propeller ID
    by Bill Darnaby » Tue Jul 02, 2024 12:05 pm
    5 Replies
    1229 Views
    Last post by Peter McBratney
    Sun Dec 15, 2024 7:31 pm
  • fuel tank vent fitting size out of the stern ?
    by [email protected] » Wed Dec 04, 2024 1:33 pm
    0 Replies
    766 Views
    Last post by [email protected]
    Wed Dec 04, 2024 1:33 pm
  • poor handling
    by Bradbury » Sun Nov 10, 2024 10:36 am
    3 Replies
    1042 Views
    Last post by JimF
    Mon Nov 18, 2024 10:20 am
  • ‘54 KLC
    by rtf505 » Mon Nov 04, 2024 9:17 pm
    1 Replies
    804 Views
    Last post by maritimeclassics
    Tue Nov 05, 2024 8:30 am
  • K Series Engine Schematic
    by [email protected] » Wed Sep 18, 2024 10:23 am
    0 Replies
    941 Views
    Last post by [email protected]
    Wed Sep 18, 2024 10:23 am
  • Rusted Coupler
    by CaptTPT » Sun Sep 15, 2024 10:58 am
    0 Replies
    785 Views
    Last post by CaptTPT
    Sun Sep 15, 2024 10:58 am
  • Does a Jabsco 5850 water pump need a reducer for a KL engine
    by Tmalko » Mon Sep 02, 2024 10:55 pm
    1 Replies
    804 Views
    Last post by Tmalko
    Thu Sep 05, 2024 9:42 pm
  • ‘56 Capri throttle cable
    by RobLindgren53 » Sun Sep 01, 2024 10:04 pm
    0 Replies
    899 Views
    Last post by RobLindgren53
    Sun Sep 01, 2024 10:04 pm
  • GM 350 V8 Backfiring
    by Miss Kris » Tue Jul 30, 2024 11:01 am
    3 Replies
    1050 Views
    Last post by Miss Kris
    Sun Sep 01, 2024 12:29 pm
  • exhaust flapper valve
    by keithandkerry » Sat May 12, 2018 4:34 pm
    1 Replies
    2932 Views
    Last post by tbcruiser
    Wed Aug 21, 2024 8:38 am
  • Reverse gear on Cavalier is weak
    by [email protected] » Mon Jul 22, 2024 12:46 pm
    2 Replies
    1060 Views
    Last post by [email protected]
    Fri Jul 26, 2024 11:14 am
  • points part number?
    by [email protected] » Wed Jul 10, 2024 10:04 am
    5 Replies
    1334 Views
    Last post by [email protected]
    Fri Jul 12, 2024 2:15 pm
  • 283 exhaust tip turndowns
    by tbcruiser » Wed May 15, 2024 10:57 am
    0 Replies
    1582 Views
    Last post by tbcruiser
    Wed May 15, 2024 10:57 am
  • Clearance between prop and rudder
    by Peter McBratney » Sat Feb 17, 2024 1:58 am
    7 Replies
    2382 Views
    Last post by Jim Godlewski
    Wed May 01, 2024 6:36 am
  • 283 Oil System
    by Bill Darnaby » Sat Sep 09, 2023 8:13 pm
    3 Replies
    4008 Views
    Last post by rgmxk22
    Fri Mar 22, 2024 8:17 pm
  • Zenith 263M Float Adjustment
    by [email protected] » Wed Aug 30, 2023 9:18 am
    1 Replies
    4498 Views
    Last post by L76
    Wed Dec 20, 2023 10:58 am
  • Can’t figure it out!
    by Carrpelll » Tue Jul 27, 2021 9:44 pm
    7 Replies
    6244 Views
    Last post by davidvn
    Thu Nov 09, 2023 2:54 am
  • Model K Engine Troubleshooting
    by [email protected] » Tue Jul 04, 2023 1:55 pm
    4 Replies
    3645 Views
    Last post by seans
    Tue Sep 26, 2023 10:11 pm
  • Slow Power Loss a Mystery
    by RayB » Mon Sep 18, 2023 9:25 am
    2 Replies
    3989 Views
    Last post by drrot
    Thu Sep 21, 2023 8:16 am
  • 1960 Cavalier transmission-reverse gearbox
    by [email protected] » Thu Sep 07, 2023 10:34 am
    1 Replies
    2767 Views
    Last post by drrot
    Thu Sep 07, 2023 11:50 am
  • Did CC offer a 283 for a 1957 15 ft cav ?
    by joe ben » Fri Sep 01, 2023 5:50 am
    2 Replies
    2765 Views
    Last post by joe ben
    Mon Sep 04, 2023 1:09 pm
  • water intake scoop - facing forward or aft?
    by mmoody435 » Sun Jul 26, 2015 11:16 am
    7 Replies
    6666 Views
    Last post by Tmalko
    Sun Aug 27, 2023 6:51 pm
  • Oil Recommendation & Old fuel Issues
    by SAMBA » Tue Aug 22, 2023 12:02 am
    0 Replies
    4113 Views
    Last post by SAMBA
    Tue Aug 22, 2023 12:02 am
  • water pump grease
    by krrs » Tue Jul 03, 2018 3:35 pm
    6 Replies
    6804 Views
    Last post by Captain Nemo
    Sun Aug 06, 2023 9:55 pm
  • Fuel pump kl
    by Gunner0321 » Sun Aug 06, 2023 11:48 am
    0 Replies
    4100 Views
    Last post by Gunner0321
    Sun Aug 06, 2023 11:48 am
  • Spark Plugs on a KL engine??
    by Tmalko » Thu Jul 06, 2023 1:00 pm
    2 Replies
    2805 Views
    Last post by Tmalko
    Sun Jul 30, 2023 12:48 am
  • KL Won’t Get Over 1500rpm under load?
    by tim.whipple » Thu Jul 13, 2023 10:54 pm
    3 Replies
    2720 Views
    Last post by Badger85
    Wed Jul 19, 2023 7:53 pm
  • The Art of Fine tuning the KFL for Lake Tahoe...
    by L76 » Thu Jul 06, 2023 5:23 pm
    2 Replies
    3037 Views
    Last post by maritimeclassics
    Tue Jul 18, 2023 8:06 am
  • Temp Gauge Not Working
    by tparsons56 » Sat Jul 01, 2023 6:14 am
    3 Replies
    3488 Views
    Last post by tparsons56
    Fri Jul 07, 2023 12:57 pm
  • Propeller Replacement 1948 CC 17 Runabout
    by tom.dames » Thu Jul 06, 2023 8:01 pm
    2 Replies
    2482 Views
    Last post by tom.dames
    Fri Jul 07, 2023 12:01 pm
  • 1940 MS Engine
    by dougz » Sat Jul 01, 2023 10:35 am
    0 Replies
    4376 Views
    Last post by dougz
    Sat Jul 01, 2023 10:35 am
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