Re: Volvo TMD22 max rpm


My two cents worth after exhaustive analysis of low max RPM's.
Dena and I have owned Libby #196 for 18 months.
We were never able to get more that 2000 RPM's @ 6.5 knots out of the TMD22 with an H6 AutoProp.
Replaced the Turbo, checked engine and transmission RPM with optical Tach at 100RPM intervals both stationary at the dock and sea trial.
Cleaned exhaust elbow, checked fuel system, and a host of other suggestions as noted in my thread.
Consulted with AB Marine and Bruntons and provided tons of empirical data.
David Sheppard provided Geoff Prior of AB Marine a new profile for the Prop.
Prop also received a full service including new bearings.
Prop was re-fitted last week.
New results.
Max RPM's 3000 @ 9 Knots+
2500 RPM's @ 7.5knots

Very happy that I can now run the TMD22 at a point where the Turbo is actually working.
Not sure why the H6 was pitched that way it was and supplied to Amel.

--- In amelyachtowners@..., "Graham" <crwggb@...> wrote:

Straight forward question:

If you have or have had a Volvo TMD22 in your Super Maramu, what is the max RPM you ever achieved with the max prop fitted? The more responses the better!

SM 140 Sula
Hong Kong

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