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Twin 3406E 800 hp engines, under 700 original hrs Both

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Twin 3406E 800 hp engines...
Twin 3406E 800 hp engines, under 700 original hrs
Both produce STEAM which increases at higher rpm
Clean oil analysis: no glycol..etc
All gauges steady and normal
Perfect performance except steam.
All service schedules done on time.What next? Thank you...
Submitted: 8 months ago.Category: Boat
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Answered in 6 minutes by:
11/18/2017
Marine Mechanic: Cat Man, Cat Engine Expert replied 8 months ago
Cat Man
Cat Man, Cat Engine Expert
Category: Boat
Satisfied Customers: 9,403
Experience: 23 years Caterpillar Engine Experience
Verified
Thanks for asking your question. I will try and help you out.
When you say steam. I assume it’s coming out of the engine vent tube? Correct?
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