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2005 175 TNT ISSUES

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ajv00303

Regular Contributor
I have twin 2005 175 engines. STB TNT works smoothly PORT bounces. Seems worse in the warmer weather, was smooth in early spring and November. I don't think it's air in the lines.
Any thoughts on what to check during the off season?
 
Tilt the engine to full max and inspect for any signs of leakage around the seals. If all is good, remove the fill plug on the reservoir and top it off with fluid if needed. Reinstall the plug, run the unit up and down a few times, and re-check your level. Continue this until it is fully topped off. If that doesn't work you may have an issue with the seals on the manual bypass valve.
 
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