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351w loses power when turning, eventu...

Discussion Forum at MarineEngine.com » Pleasurecraft Marine PCM » 351w loses power when turning, eventually stalls « Previous Next »

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John Lightfoot
New member
Username: lightfoot

Post Number: 1
Registered: 08-2009
Posted on Monday, September 07, 2009 - 06:12 pm:   Edit Post Delete Post View Post/Check IP

I bought my 87 american skier advance a few months ago, and have been restoring it this summer. It was trashed, and basically needed to have everything removed and refurbished. The engine (351w) had some very poor work done on it, and the rings seized to the pistons. I rebuilt the engine ( no machine work, everything was within tolerances) and it runs pretty well. I also rebuilt the carb, however it was in rough shape due to being used in salt water.

Where I am having problems is when I take a moderate to sharp turn. The engine will begin to lose power, and bog down, dropping rpm. If I hold the turn long enough, the engine will eventually stall out. This may take 10-15 seconds of turning, maybe a bit longer. I do believe the secondaries are opening, however its hard to watch the carb and drive, so I cant see if they are getting gas.
Anyone ever experience this before, or have an idea what it might be? Its driving me crazy.
I have checked to the float levels, so i dont think its related to that.
Thank you
lightfoot
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Chris Dutton
New member
Username: captchrisd

Post Number: 1
Registered: 01-2010
Posted on Tuesday, January 05, 2010 - 08:15 pm:   Edit Post Delete Post View Post/Check IP

Did you ever resolve this? I am having an issue with this as well... I have a 90 Ski Brendella with a 351w in it... just purchased it not running, rebuilt the engine but not the carb, now I am having issues in the turns and if I keep the bow up for a long time.
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harry mayer
New member
Username: giggles

Post Number: 2
Registered: 10-2009
Posted on Saturday, January 09, 2010 - 03:09 pm:   Edit Post Delete Post View Post/Check IP

Did you check fuel pump pressure, or tank vent
for obstructions
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Chris Dutton
New member
Username: captchrisd

Post Number: 2
Registered: 01-2010
Posted on Saturday, January 09, 2010 - 03:40 pm:   Edit Post Delete Post View Post/Check IP

My problem ended up being a stuck float in the carb... at the right angle it would stick...

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