John Harting
Cadet
- Joined
- Nov 21, 2005
- Messages
- 6
I have a 1985 2.5L 4 banger on my houseboat. I will be crusing at 3K RPM, and the motor drops to idle, does not stall or run rough. Put the shifter into neutral, engage forward and it goes back to 3K RPM with no problem. It does the same thing when holding the houseboat to shore when we are staking it down, which is when it can get exciting (drops into idle and the wind starts pushing it to shore). There was a similar entry mid last year with some suggestions but no real answer. The engine did the same thing for the previous owner 8+ years ago. I've installed a new fuel pump, rebuilt carb, copper fuel pickup in a custom 120Gal tank with 90+ gallons of fuel, checked timing, coil, etc. I consider myself a pretty good mechanic but I cannot figure out how it goes from 3K RPM to 600 RPM with no starving or ignition symptoms and recovers every time. Any suggestions would be appreciated.