On Aug 26, 3:03*am, "Roger Long" wrote:
No, mine (2QM20) is the older engine. *Maximum RPM is 2800 (up to 1 hour
according to the rating) and Maximum Contiuous is 2600. ...

Ah yes. I've got 2GM20s and they never get 20hp -- 18 max, 16
continuous -- and they rev a lot higher as well... According to the
manual they consume, more or less, 0.065 gallons per horse power per
hour from 22 to 32 rpm. I suppose they cost less, otherwise the QM
seems like the better beast...

-- Tom.