Thread: Trolling valve?
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Old 06-13-2021, 11:46 AM   #1
maineman
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City: cape elizabeth
Join Date: Dec 2016
Posts: 31
Trolling valve?

Hello all,
I keep reading about trolling valves. It seems like they are used on larger engines to allow travel at slower speeds.
How does it work?
And, does it do any harm to the engine?
Are they only used on older diesels that might soot up if run at low rpm for a length of time?
Thank you!
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