Motor Starting Problem

Reply

  #1  
Old 04-15-08, 01:15 PM
Member
Thread Starter
Join Date: Apr 2008
Posts: 3
Motor Starting Problem

I have a 1995 Sea Ray I/O my boat will set for weeks at a time. When I launch and start the engine it takes right off (4.3 Litre) and runs beautiful all day long. After setting overnight when I start it it runs for a short time and then dies. I have to hot wire the fuel pump to get it to restart. After that it's fine I can start and stop all day long no more problems until it again set's overnight.

I recently changed the pressure switch mounted on the side of the block, the fuel pump is wired through this but that did not fix the problem.

Any help I can get will be greatly appreciated.

Thanks
Bob
 
Sponsored Links
  #2  
Old 04-15-08, 02:41 PM
Member
Join Date: Aug 2005
Posts: 2,268
First thing to check on a boat that age is the fuel filter.... could be clogging up.

Next: How long has it been since the carb was overhauled/rebuilt. Your float needle may have "set" and is sticking.... Could be a myriad of other issues.. but that comes to mind first for me.
 
  #3  
Old 04-16-08, 01:48 PM
Member
Thread Starter
Join Date: Apr 2008
Posts: 3
The boat was just service & tested other than this ocassional problem everythings fine. What tells the electronic fuel pump to turn on and off? This seems to be more the problem than the carb.

Bob
 
  #4  
Old 04-16-08, 03:50 PM
Member
Join Date: Aug 2005
Posts: 2,268
Your fuel pump should turn on when the key is turned to the start/on position and run continuously. Easy enough to check - though a bit messy and potentially dangerous.. Disconnect the fuel line at the carb and see if you have fuel pressure (run the line into a proper gas can). If the problem is intermittent (sounds like it is) - then this test will probably not show much as those things "always work" when your testing them.
 
  #5  
Old 04-17-08, 07:58 AM
Member
Thread Starter
Join Date: Apr 2008
Posts: 3
I know that when I have the starting problem that the fuel pump is not running. I didn't know that the pump should run all the time. That gives me something solid to go on.

Thanks for the info.

Bob
 
  #6  
Old 04-17-08, 03:29 PM
Banned. Rule And/Or Policy Violation
Join Date: Oct 2007
Posts: 176
No the pump does not always run all the time, they, being electric typically have a pressure shut off so when the pump comes to head it will shut off. It sounds like a check valve problem in the pump, I think I would replace the pump, it is the most probable cause.
 
Reply


Thread Tools
Search this Thread
Display Modes
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 05:07 AM.