First post, more of an informative thing, but I learned the answer here, so I figured I'd report in.
My father gave me his 85 Sting Ray Seville with a 140 3.0L engine 2 months ago. It hadnt been run in 5 years. First thing I did was put electronic ignition on it ( me and points dont get along), replaced the coil with a 3.2 ohm, internal resistance coil, set the timing.replaced all the filters, the oil and the plugs, I rebuilt the carb for good measure. I drained the fuel tank, put 20 gallons of fuel in it and cranked her up. Purred like a kitten.
I took it to the Lake yesterday, cranked it up and off I went. For an hour and 45 minutes, things were grand, literally ran like a new one. Then it developed a stutter, I started back to the landing. Didnt make it. After about 10 minutes the stutter turned into a lack of throttle, then I hit a no wake zone and it cut off, never to restart. As luck would have it, it died 100 yards from a different Marina. A friendly passer by towed me in, I called my mom, she came and got me, took me to the truck and I came and got the boat.
I got home, still wouldnt start. Engine turned over, wouldnt run. I checked the spark, seemed good. Cracked the fuel like at the carb, gas squirted out. After ripping the carb back apart and finding nothing, replacing the coil, taking off the fuel pump, checking the check valve at the tank, the strainer in the tank, blowing out fuel lines etc, I gave up for the night.
Today I replaced the fuel water seperator and threw a bottle of Stabil in the tank. I drained the old separator into a glass jar and saw nothing but fuel. I wasnt too enthused, but Damn if that wasnt it. Started right up and was purring again in minutes.
Thanks to everyone out there who pointed out the separator. I supposed that since it was brand new it wasnt the problem, bad supposition. 5 years of sitting must have left a nasty scum in the tank that caused it to clog.
My father gave me his 85 Sting Ray Seville with a 140 3.0L engine 2 months ago. It hadnt been run in 5 years. First thing I did was put electronic ignition on it ( me and points dont get along), replaced the coil with a 3.2 ohm, internal resistance coil, set the timing.replaced all the filters, the oil and the plugs, I rebuilt the carb for good measure. I drained the fuel tank, put 20 gallons of fuel in it and cranked her up. Purred like a kitten.
I took it to the Lake yesterday, cranked it up and off I went. For an hour and 45 minutes, things were grand, literally ran like a new one. Then it developed a stutter, I started back to the landing. Didnt make it. After about 10 minutes the stutter turned into a lack of throttle, then I hit a no wake zone and it cut off, never to restart. As luck would have it, it died 100 yards from a different Marina. A friendly passer by towed me in, I called my mom, she came and got me, took me to the truck and I came and got the boat.
I got home, still wouldnt start. Engine turned over, wouldnt run. I checked the spark, seemed good. Cracked the fuel like at the carb, gas squirted out. After ripping the carb back apart and finding nothing, replacing the coil, taking off the fuel pump, checking the check valve at the tank, the strainer in the tank, blowing out fuel lines etc, I gave up for the night.
Today I replaced the fuel water seperator and threw a bottle of Stabil in the tank. I drained the old separator into a glass jar and saw nothing but fuel. I wasnt too enthused, but Damn if that wasnt it. Started right up and was purring again in minutes.
Thanks to everyone out there who pointed out the separator. I supposed that since it was brand new it wasnt the problem, bad supposition. 5 years of sitting must have left a nasty scum in the tank that caused it to clog.