[torchlake99]

Wanted to give an update on what I learned about the above adventure..... After spending $1400 changing the pitch on the props there was almost no change in rpm's with the boat. I tried ordering a Cummins manual for the engines late last year when we bought the boat but it was out of print. I finally did get a copy late this spring. In the back of the manual there is a trouble shooting area. Under "engine will not reach full throttle" it says to make sure the throttle linkage is not misadjusted or damaged. I call in the local cummins service rep. and he came to the boat. Turns out this is exactly what my problem was. In one hour we turning 3300 rpm's with no load which is what he said it should spec out at. With full load in the water I am now turning about 3150. Now I have props that are off factory specs but at least we solved that issue. Just wanted to share my adventure. What I learned bottom line is there is no one better than your local Cummins service rep. to take care of these engines. He is going to come back for the 600 hours maintenance in a week or so.