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6CTA discoloration on turbo, pipe, and cooler. Cause?
This topic has 12 replies, has 4 voices, and was last updated by
6 years ago September 19, 2017 at 9:00 am Browsing through YachtWorld, looking for a potential new home, and ran across a boat with Cummins 6CTA 450 hp engines. Love the engines. First time I have seen this brown discoloration on the turbo, tube coming from the turbo, and the aftercooler. The photos provided in the ad don’t show the port side of the port engine, only the starboard engine. The engines have 740 hours on them. Any of you diesel mechanics run into this before? What ar…
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in: Cummins Marine Engines
12 RepliesSeptember 21, 2017 at 5:38 am Thanks, Rob. That’s a fine-looking boat you have.Last Post by:
posted: 6 years ago
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6CTA and QSM11 engines. How easy to reach/change the impellers?
This topic has 2 replies, has 2 voices, and was last updated by
6 years ago August 24, 2017 at 7:47 am Hello, New member here. Just found this incredibly useful site. Hoping you might be able to answer a couple of questions. We are considering moving to a larger boat. Two are under serious consideration. One is a 53′ with 6CTA 450 hp engines and the other is a 57′ with QSM11 635 hp engines. How easy is it to access the impellers on these two engines without removing the raw water pumps? (Our current boat has 6BTAs 330 hp and th…
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in: Cummins Marine Engines
2 RepliesAugust 25, 2017 at 7:46 am Hi Tony, Your reputation is obviously deserved. Thanks for the information and the photos. The 6CTA looks easy to work on, easy access. The close up photo of the seawater pump on the QSM looks like the dipstick tube and the oil filler tube could be in the way of using an impeller puller. However, the overall photo taken from the front left corner of that engine makes it appear as if there may be more room to work in between the seawater pu…Last Post by:
posted: 6 years ago
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6CTA discoloration on turbo, pipe, and cooler. Cause?