Mercruiser Slow Acceleration Only
06-28-2010, 08:12 AM
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Mercruiser Slow Acceleration Only
Hello all! Before I go buy the $100+ carb rebuild kit I wanted some input.
5.7L with Webber carb will accelerate slow but if I try a quick acceleration it just seems to bog and produce a gassy smell from the exhaust until I back off the throttle. It I back it down and start over again slowly it works fine. I took the carb off and cleaned it good and the accelerator pump seemed to function correctly. I would think that if it is bogging from lack of fuel I would not smell this aweful gassy smell.
Thanks.
5.7L with Webber carb will accelerate slow but if I try a quick acceleration it just seems to bog and produce a gassy smell from the exhaust until I back off the throttle. It I back it down and start over again slowly it works fine. I took the carb off and cleaned it good and the accelerator pump seemed to function correctly. I would think that if it is bogging from lack of fuel I would not smell this aweful gassy smell.
Thanks.
06-28-2010, 08:59 AM
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fixx
Hello all! Before I go buy the $100+ carb rebuild kit I wanted some input.
5.7L with Webber carb will accelerate slow but if I try a quick acceleration it just seems to bog and produce a gassy smell from the exhaust until I back off the throttle. It I back it down and start over again slowly it works fine. I took the carb off and cleaned it good and the accelerator pump seemed to function correctly. I would think that if it is bogging from lack of fuel I would not smell this aweful gassy smell.
Thanks.
5.7L with Webber carb will accelerate slow but if I try a quick acceleration it just seems to bog and produce a gassy smell from the exhaust until I back off the throttle. It I back it down and start over again slowly it works fine. I took the carb off and cleaned it good and the accelerator pump seemed to function correctly. I would think that if it is bogging from lack of fuel I would not smell this aweful gassy smell.
Thanks.
as for the gas smell i would check your fuel lines and filter and make sure nothing is loose,,also if you have a mechanical fuel pump suspect a ruptured diaphram and its dumping fuel into the carb..
06-30-2010, 06:29 AM
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Maybe Ground Issue?
Ok, before I open this webber $125 carb kit that really only has an accel pump and mine shoots a big stream already I am thinking that the gassy smell when i try to accelerate hard and weak spark maybe caused by a bad ground or weak coil. I do have a ground issue that I am getting ready to address so could that also cause the boat to only accelerate slow?
06-30-2010, 08:47 AM
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Fixx
Ok, before I open this webber $125 carb kit that really only has an accel pump and mine shoots a big stream already I am thinking that the gassy smell when i try to accelerate hard and weak spark maybe caused by a bad ground or weak coil. I do have a ground issue that I am getting ready to address so could that also cause the boat to only accelerate slow?
