Ky Tundra
Member
Finally made time this spring to pull the carbs off my Merc 454s on my 1989 340 Sundancer. Took them to a trusted auto mechanic for a rebuild. He said the fuel inside was pretty nasty and he suggested I drain my tanks. I trust him to work on the carburetors but he is not a boat guy.
The rebuild was prompted by an issue at high RPMs that I was plagued with all last season. Otherwise boat ran fine at idle and up to about 2800 RPMs. I put it away last Fall with about a quarter tank in each side with appropriate amount of Sta-bil. Started and ran the same this season before pulling carbs.
So, should I attempt to pump out and dispose of maybe 40 gals of fuel or should I just add fresh on top of it and move forward with the fresh carbs? Is there an issue where the old fuel will harm the rebuilt carburetors?
For what it’s worth, all fuel filters were changed late last season to try and alleviate the issue.
And if you are wondering why I have an auto mechanic working on my boat then you have never tried to have your boat worked on in Louisville. If it’s not small enough to be pulled on a trailer to a shop then it’s difficult to get work done and the pool of qualified mechanics is pretty slim.
Thanks in advance for any help.
The rebuild was prompted by an issue at high RPMs that I was plagued with all last season. Otherwise boat ran fine at idle and up to about 2800 RPMs. I put it away last Fall with about a quarter tank in each side with appropriate amount of Sta-bil. Started and ran the same this season before pulling carbs.
So, should I attempt to pump out and dispose of maybe 40 gals of fuel or should I just add fresh on top of it and move forward with the fresh carbs? Is there an issue where the old fuel will harm the rebuilt carburetors?
For what it’s worth, all fuel filters were changed late last season to try and alleviate the issue.
And if you are wondering why I have an auto mechanic working on my boat then you have never tried to have your boat worked on in Louisville. If it’s not small enough to be pulled on a trailer to a shop then it’s difficult to get work done and the pool of qualified mechanics is pretty slim.
Thanks in advance for any help.