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Thread: Water in Gas?

  1. #1
    Join Date
    May 2007
    Location
    Naperville, IL
    Posts
    315

    Default Water in Gas?

    My '99 Outback has run great all summer. Towed it to a different lake and filled up on the way. When we hit the lake, the engine was running lousy, hesitating on acceleration, gagging when trying to hold speed, missing, etc. I pulled out the water seperating filter which looked shot (bad seal and rusting). Found the last one in town and replaced it. Ran OK for a while and then started hesitating on starts and you can hear the gaps in the engine tone at speed. I emptied it and reinstalled with the same result. I added Sea Foam and Heet to the tank over the weekend as well. Anything else I should look for? Thanks.

  2. #2
    Join Date
    Aug 2007
    Location
    Peru, IL
    Posts
    262

    Default Re: Water in Gas?

    Quote Originally Posted by Waynes345
    My '99 Outback has run great all summer. Towed it to a different lake and filled up on the way. When we hit the lake, the engine was running lousy, hesitating on acceleration, gagging when trying to hold speed, missing, etc. I pulled out the water seperating filter which looked shot (bad seal and rusting). Found the last one in town and replaced it. Ran OK for a while and then started hesitating on starts and you can hear the gaps in the engine tone at speed. I emptied it and reinstalled with the same result. I added Sea Foam and Heet to the tank over the weekend as well. Anything else I should look for? Thanks.



    Hey I have the same exact boat as you do and live about a hour southwest of Naperville....
    Anyways I've had my boat about a month and it has 140 hours on it. I experienced the same problem as you over the Holiday weekend.
    I also switched out my fuel filter thinking it was the gas then I dumped a few bottles of heet and gas treatment in the tank then filled it with 93 V-Power from Shell.
    After looking closely to the carb when mine was running I found out the choke was staying closed which made the motor flood. After I got that problem resolved I took it back on the water, but still had problems under full throttle the motor would miss and backfire and spit.
    Well today I took out the spark plugs (AC MR43T) which I then found out after calling the dealer were the wrong ones. I replaced them with NGK TR5's. I am heading out here soon to see if she runs any better.
    I would say if it's not your gas then maybe the carb or the plugs or possibly something else.
    Hope I shot ya in the right direction!
    Aaron
    '99 Outback (Maroon/Creme) GM 350/Holley 4150
    550 HRS
    LaSalle-Peru, IL

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