Who has fixed their Vapor Lock Issues

floatit

Seaman Apprentice
Joined
Jun 26, 2005
Messages
35
I have a 1997 Four Winns with a 5.7L Volvo Penta I/O. I have a severe case of Vapor Lock everytime I go to the lake.

I have tried the following:
Idling for 5 minutes before shutting off
Leaving Engine Lid open whil stopped
Blower motor running during and after running.

I have also took a piece of 5/8" rubber Fuel line hose and split it down the center. Then wrapped the metal fuel line that goes from one fuel pump to the other fuel pump (this is on top of the intake manifold).

Nothing has seemed to help.

I know there is a mechanical pump that Mercruiser has published for their fix. But what about the Volvo Penta People? What have you done to fix the problem.

What drives me crazy is I see other boats that park in the coves next to me and they dont seem to have this problem. They dont idle, run blowers, or pop engine cover. When they are ready to leave after several hours, they start up and vroom! their gone. Some have volvo's and others have merc's.

I am very frustrated and tired of being towed back to the docks.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Who has fixed their Vapor Lock Issues

Did you ever think it might be something other than vapor lock ??????
Si ce you have two fuel pumps, I would suspect you have EFI, right?
What is the FULL model number of your engine, need ALL the letters after the 5.7 in in the model number.
 

floatit

Seaman Apprentice
Joined
Jun 26, 2005
Messages
35
Re: Who has fixed their Vapor Lock Issues

Yes, you are correct I do have Mulitport Fuel Injection. The reason why i say it is vapor lock is because when the motor is cool, (like when i get home) the motor starts right up.

I am not sure what the model number of the motor. I found a bunch of stickers on the valve cover but None of them seem to the actual motor number.

Is there a certain place that I can find this number at?
 
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