HELP! HP 525 EFI High Speed Sputter

Reply Subscribe

Thread Tools

05-06-2010, 01:06 PM

#21

Mykalvballer

Registered

Join Date: Aug 2004

Location: Deatsville, AL

Posts: 349

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by hurleyr

OK, I just thought of something. I didn't replace the mechanical fuel pump. Could this cause this type of problem? Its not leaking.

On the fuel side, everything but the mechanical fuel pump and injectors have been replaced.

Was it the injectors

Last edited by Mykalvballer; 05-06-2010 at 01:08 PM.

05-07-2010, 05:38 AM

#22

SeaDated

Registered

Join Date: Mar 2001

Location: Kennesaw, GA, USA

Posts: 854

Likes: 1

Received 0 Likes on 0 Posts

I had the same issue with my boat. The boat ran great at first and later in the day it wouldn't. I checked everything fuel related and I was about to give up when I found the problem. Are you ready for this? After spending a bunch of time and effort and money it turned out to be the fuel line. Yes the fuel line. The line coming from the tank under the floor was left to long and installed with a large loop maybe a foot or more in diameter. When the line was cold it was rigid and wouldn't colapse. As the boat got warmer the line got more flexable and would get sucked closed causing a restriction as the loop closed in. I removed the loop from the line and all is well. FYI...38 Fountain. It's worth a look.