sw33ttooth
Chief Petty Officer
- Joined
- Apr 24, 2011
- Messages
- 498
ok so by now this is my 3rd post and each time i get a new diagnosis after i fix what i thought was the problem....
as far as i know... 91 351 ford motor cobra outdrive
what i've done so far:
changed fuel filter.
checked 55 gallon gas tank for vent issues and/or crimpt gas lines.
changed dist. and roter. both looked the same as what i had.
changed plug wires.
changed 3 of the spark plugs [ i can get 1 off each side on the ends and it took me an hour to pull one out that was around the manafolds.
dumpd in 3 cans of SeaFoam each can good for 8-25 gallons of gas apox 50 gallons at the time.
i put about 60 gallons worth of Sta-bil into tank last fall i had maybe 50 gallons of gas.
on to my current problem:
motor starts and i can idle out past the no wake signs with out a problem. then once i start to take off some where around 1k rpm and 2.1k rpm [randomly] the motor will shake like a b**** and sputter/stumble for maybe 5-10 seconds, then return to where i had the thottle set and i am good i can take off untill, i return thottle to idle or below 1k rpm and try to take off again i have the same issue. some people around me that work on vehicals think its the carb but they dont work on boats and it doesn't seem to me like its a carb issue.
i've been reading on esa and how you can set it up like a mercruiser which is fine by me as long as that is the problem but they don't really discribe it well enough for me to go ahead and start clipping wires. also i've read i can buy the esa unit for like $90 on ebay or something.
my question being which way would be better i mean if its the esa now in 5? 10? years or a few months? how long before it goes out? the thottle does seem a little hard going back into neutral and i've read that is a symptom of esa.
any help towords fixing this issue would be greatly apreciated/ or another way to change the plugs. i tried a snap-on socket and universail and a 2-3 inch extention by the time i put each piece on i broke the first plug in half, which i dont want to do again.
as far as i know... 91 351 ford motor cobra outdrive
what i've done so far:
changed fuel filter.
checked 55 gallon gas tank for vent issues and/or crimpt gas lines.
changed dist. and roter. both looked the same as what i had.
changed plug wires.
changed 3 of the spark plugs [ i can get 1 off each side on the ends and it took me an hour to pull one out that was around the manafolds.
dumpd in 3 cans of SeaFoam each can good for 8-25 gallons of gas apox 50 gallons at the time.
i put about 60 gallons worth of Sta-bil into tank last fall i had maybe 50 gallons of gas.
on to my current problem:
motor starts and i can idle out past the no wake signs with out a problem. then once i start to take off some where around 1k rpm and 2.1k rpm [randomly] the motor will shake like a b**** and sputter/stumble for maybe 5-10 seconds, then return to where i had the thottle set and i am good i can take off untill, i return thottle to idle or below 1k rpm and try to take off again i have the same issue. some people around me that work on vehicals think its the carb but they dont work on boats and it doesn't seem to me like its a carb issue.
i've been reading on esa and how you can set it up like a mercruiser which is fine by me as long as that is the problem but they don't really discribe it well enough for me to go ahead and start clipping wires. also i've read i can buy the esa unit for like $90 on ebay or something.
my question being which way would be better i mean if its the esa now in 5? 10? years or a few months? how long before it goes out? the thottle does seem a little hard going back into neutral and i've read that is a symptom of esa.
any help towords fixing this issue would be greatly apreciated/ or another way to change the plugs. i tried a snap-on socket and universail and a 2-3 inch extention by the time i put each piece on i broke the first plug in half, which i dont want to do again.
