tracing mystery fuel leak
I have a small fuel leak that I can't find on my port motor, a 240hp yanmar, 4LHA stp.
After we crossed from Tarpon Springs to Carrabelle a few weeks back, I found approx. 2 oz of fuel on the diaper under the motor. The run took about 10 hours at 2,800 to 3,000 rpm, which is a little better than 15 knots.
I've been trying to find the leak, so far I have run the boat at idle up to 1,800 rpm, and there is nothing. I'm afraid to run the engine any faster than that without a load.
the fuel was all on the inboard side of the motor, under the injection pump. No spray at any of the injectors, no leak anywhere that I could find. I let it idle for 20 minutes, nothing.
Thanks as always,