huggyb1972
Petty Officer 1st Class
- Joined
- Apr 1, 2013
- Messages
- 237
Ahoy all,
Our motor will not run out correctly above half throttle we believe the new style plastic floats may be to blame. The fuel pump is new all the hoses are new as well as one of the tanks. We can get the motor to full power by squeezing the primer bulb while underway.
Is there a way to adjust the plastic floats?
Dad and I bought a 60hp Merc this winter to replace our 45 Chrysler. This motor was bought in unknown condition and produced 120-125lbs of compression across all three cylinders. We replaced the stator and trigger because of wire insulation breakdown. The switch box and water pump is new.
The carbs were reworked after the compression check came back positive. Dad used sierra parts and he replaced the floats with new. We took the boat out for the first time last week and it didn't idle real well but would idle. We came out of the idle zone easy on the throttle and were impressed by the power difference. Then it started losing power after going wide open. We limped in to the trailer stopped by picked up fuel pump kit and took it back out and the idle was perfect. The diaphragm was leaking into engine we also found out our engine is a 85 by serial number, but newer like 87+ by powerhead evidenced by the 4 screw style fuel pump.
I am now wondering about the floats. They are plastic and from what dad has told me didn't appear to have adjustment. He also tossed the old style so we can't try them in comparison. Like I said I can squeeze the primer bulb and keep the engine running hard at full throttle but as soon as I lay off extra help to the fuel pump it loses power. This is a 3 seat fishing boat with with front seat stick steering.
Our motor will not run out correctly above half throttle we believe the new style plastic floats may be to blame. The fuel pump is new all the hoses are new as well as one of the tanks. We can get the motor to full power by squeezing the primer bulb while underway.
Is there a way to adjust the plastic floats?
Dad and I bought a 60hp Merc this winter to replace our 45 Chrysler. This motor was bought in unknown condition and produced 120-125lbs of compression across all three cylinders. We replaced the stator and trigger because of wire insulation breakdown. The switch box and water pump is new.
The carbs were reworked after the compression check came back positive. Dad used sierra parts and he replaced the floats with new. We took the boat out for the first time last week and it didn't idle real well but would idle. We came out of the idle zone easy on the throttle and were impressed by the power difference. Then it started losing power after going wide open. We limped in to the trailer stopped by picked up fuel pump kit and took it back out and the idle was perfect. The diaphragm was leaking into engine we also found out our engine is a 85 by serial number, but newer like 87+ by powerhead evidenced by the 4 screw style fuel pump.
I am now wondering about the floats. They are plastic and from what dad has told me didn't appear to have adjustment. He also tossed the old style so we can't try them in comparison. Like I said I can squeeze the primer bulb and keep the engine running hard at full throttle but as soon as I lay off extra help to the fuel pump it loses power. This is a 3 seat fishing boat with with front seat stick steering.