While this may not help you with your diesel issue, in the 36 years that I have owned my boat, I have never even tried to achieve RPMs above about 2800. I can achieve hull speed at 2600 RPMs and I generally cruise at 2400 RPM.
Bob Boyer s/v Rainy Days C&C Landfall 38 (Hull # 230) (Presently in Baltimore for the summer) blog: dainyrays.blogspot.com email: dainyr...@icloud.com > On Aug 17, 2019, at 8:13 PM, Eugene Fodor via CnC-List > <cnc-list@cnc-list.com> wrote: > > My 2GMF 13HP on my 29 mk 2 is dropping RPMs at max throttle under load. It > also appears to drift a bit while operating at a fixed throttle. Tied at the > dock forward seems to have more difficulty that reverse. I should be able to > get up to 3200-3400 RPM (and have been able to in recent times with no issue, > but I'm only getting to about 2500-2800. When I open the throttle wide it in > gear it initially goes to high RPMs and then drops back. I replaced the fuel > filter and the symptom remains the same. Any thoughts on what to look for and > approaches to debug? > > I've got the service manual and Don Casey's book on small engines, but > nothing is matching the symptoms in trouble shooting exactly well. > > So my theories are (in approximate order of suspicion from my novice > perspective based on reading) > > Governor is faulty and needs adjustment > Injector faulty > Fuel pump issue > Air/water in fuel (I think I've mostly ruled this out) > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
