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    • Cummins Marine Forum Topics
    • Cummins 480ce Belt Shred, Bad Tensioner??

      This topic has 5 replies, has 3 voices, and was last updated byTony Athens 5 years ago

      November 27, 2018 at 1:47 pm I am currently on the Great Loop and made a the 175 mile trip across the Gulf Of Mexico. When I looked into the bilge for my daily check I was surprised to see my starboard serpentine belt was shredding, it didn’t break (thank goodness) it looks like about 3 or for ribs were shredding. Effectively the belt was narrower. I replaced the belt with a spare, but I am sure there is more to this. The alignment looks good, no noise from any pu…

      Started by: Mike Gilbert in: Cummins Marine Engines

      5 Replies
      November 28, 2018 at 7:15 pm Good call, but also replace the fixed idler–You need to start FRESH with those “original parts” that are now as old as my grandson but have lived in a much worse environment.. .. While you are at it, take a tooth brush and a can of spray brake cleaner ( Autozone or ?) and clean all the grooves thoroughly in the main crankshaft serpentine pulley. It takes about 15-30 minutes to do it right.. Start FRESH……….…

      Last Post by: Tony Athens posted: 5 years ago

    • 480CE Running Warm Temps erratic

      This topic has 6 replies, has 4 voices, and was last updated byRob Schepis 6 years ago

      September 6, 2017 at 4:07 pm Let me first say I didn’t realize Tony was not participating with Boat Diesel……I posted this question there, Tony did answer an email I sent him, thought we had my issue solved by replacing thermostat. But it is not….. The temps are very erratic, took the bottom hose of the after cooler and found about 60% of an impeller(see pic 40% left, where??) my marina changed, they are jiffy lube mechanics, they never flushed out …

      Started by: Mike Gilbert in: Cummins Marine Engines

      6 Replies
      September 19, 2017 at 8:15 am Mike Gilbert wrote: ….. The picture was after I removed the covers, squeaky clean compared to others I have seen. NICE!

      Last Post by: Rob Schepis posted: 6 years ago

    • Loss of power

      This topic has 2 replies, has 2 voices, and was last updated byMike Gilbert 6 years ago

      June 11, 2017 at 6:37 am We went for our first run on Saturday, Ran for about 8 miles at 700 rpm, boat ran fine. When I went to power up the starboard engine would not power up past 1400 rpm. Rough running and white smoke. After a few minutes I tried again and it was able to get on plane, ran for about 10 more miles at 2100 rpm, all is well. Docked the boat for a few hours, ran back to marina at 2100 no problems, went back to 700 rpm for a few miles, tried to plane the …

      Started by: Mike Gilbert in: Cummins Marine Engines

      2 Replies
      June 11, 2017 at 7:32 am Yes it was the first run after winter layup. I store my boat in heated storage, the fuel tanks were 95% full, and diesel stabilizer was put in them. re-Commissioning consisted of changing oil and filters, but did not change fuel filters. The filters have approximately 3000+ gal of fuel run through them. As I said ran fine at low speed, only when I power up the starboard motor will not go past 13k or 14k and there is whitish smoke. Even in ne…

      Last Post by: Mike Gilbert posted: 6 years ago

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Viewing 3 topics - 1 through 3 (of 3 total)