Forum Topics Started

Viewing 2 topics - 1 through 2 (of 2 total)
    • Cummins Marine Forum Topics
    • QSB6.7

      This topic has 4 replies, has 3 voices, and was last updated byRoy Beasley 9 months ago

      August 1, 2023 at 10:31 am I have a small water leak coming from the rear of the aftercooler on QSB6.7.Ā  I am assuming it needs a new o-ring.Ā  Is there 2 o-rings on each end? Just take off rear cap and replace them.Ā  Is this as easy of a fix as it seems?Ā  When time allows, I want to have the aftercooler pulled for maintenance but just wanted to get the leak stopped for now.   Roy

      Started by: Roy Beasley in: Cummins Marine Engines

      4 Replies
      August 2, 2023 at 8:18 am Pictures attached.Ā  You can see the light brown area where it is leaking.

      Last Post by: Roy Beasley posted: 9 months ago

    • TWIN DISC PRESSURES AND DARK FLUID

      This topic has 12 replies, has 7 voices, and was last updated byRoy Beasley 1 year ago

      February 27, 2018 at 6:54 pm Ever since the new engines (QSB6.7) and trans package MG5065SC was installed. The port has a 15 psi lower pressure at idle than the starboard but that changes when you are in gear and the port is about 50 psi higher at full throttle. Twin Disc (Awful customer service) was never able to tell me why and thought perhaps the numbers are bogus. They are both hooked up the same. All the readings on the vessel view are very close or the same for ev…

      Started by: Roy Beasley in: Marine Transmissions

      12 Replies
      December 27, 2022 at 11:47 am After having that issue that I described Ā above the t transmission fluid has been fine. I change them every 250 hours and they look the same.Ā 

      Last Post by: Roy Beasley posted: 1 year ago

  •  

Viewing 2 topics - 1 through 2 (of 2 total)