The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Search

Notices

Random Quote: "If no one sticks on their necks for their beliefs or dreams, then they will never be able to catch the fresh
Reply
 
Thread Tools Search this Thread
Old 10-07-2013, 06:13 PM
  #1    
Admirals Club
 
Join Date: Jan 2012
Posts: 147
Default Yamaha F300 fuel pump issues

Is anyone else having a problem with the fuel pumps on f300s. Mine are 2012. I am told the brushes in the fuel pump motors are wearing faster than expected, then they are "making" a dust that is going into the vst tank, and clogging the vst filters. Anyone with advise or any other knowledge that will help me out.

Thanks
__________________
Swallow The Leader
33T trip 300s
stl32 is offline   Reply With Quote
Old 10-07-2013, 06:41 PM
  #2    
Member
 
Join Date: Feb 2009
Location: Port Orange Fl
Posts: 35
Default

I have over 300 hours and no problems
coconut 272 is offline   Reply With Quote
 
Old 10-07-2013, 06:59 PM
  #3    
Admirals Club
 
Join Date: Aug 2008
Location:
Posts: 1,109
Default

I have almost 800 hours and have not had this problem.

How in the world is dust from the motor getting into the pump?
__________________
Edgewater 318-F300's
Tampa Bay
scooperfl is offline   Reply With Quote
Old 10-07-2013, 07:06 PM
  #4    
Senior MemberCaptains Club Member
 
Join Date: Oct 2005
Location: Key West
Posts: 4,531
Default

First I've heard of this.
__________________


BrindiSea

2003 Pathfinder 2300DV -- Hull #1 -- 2013 Yamaha F300

Garmin 5212 w/ 24HD radar
Furuno 585 sounder/SS264W H/L

coores14 is online now   Reply With Quote
Old 10-07-2013, 07:11 PM
  #5    
Admirals Club
 
Join Date: Jan 2012
Posts: 147
Default

dust from the fuel pump motor (electric) has brushes inside. I am being told that Yamaha knows they have a problem and is working on a fix. I was also told that they have redesigned the pump and vst tank. I only know that there is a problem when I try to open it up all the way. It is know producing the max rpms and each motor is turning up a different rpm. I have been through about 6 different sets of props and can tell you for sure its not a propping issue.
__________________
Swallow The Leader
33T trip 300s
stl32 is offline   Reply With Quote
Old 10-07-2013, 11:11 PM
  #6    
Admirals Club
 
Join Date: Aug 2009
Posts: 6,656
Default

That doesn't make much sense as plenty of other engines use basically the same system without problems?
__________________
Nothing makes a fish bigger than almost being caught.
VanW is offline   Reply With Quote
Old 10-08-2013, 12:34 AM
  #7    
Admirals Club
THT sponsor
 
Parker Yacht's Avatar
 
Join Date: Jan 2009
Location: Ft Lauderdale
Posts: 4,103
Default

Quote:
Originally Posted by stl32 View Post
Is anyone else having a problem with the fuel pumps on f300s. Mine are 2012. I am told the brushes in the fuel pump motors are wearing faster than expected, then they are "making" a dust that is going into the vst tank, and clogging the vst filters. Anyone with advise or any other knowledge that will help me out.

Thanks

I am not buying this.
If the brush "dust" made it into the VST, then the fuel would make it into the brushes. That would not be a good deal.
WHO is telling you this?
We need a little more info on the rest of the set up, boat, construction material, fuel line material, etc.
__________________
www.parkeryacht.com
Outboard Engine Sales and Service
Complete Boat Repair and Restoration's
954.463.1515 Office
954.463.4904 Fax
oparker@parkeryacht.com

Last edited by Parker Yacht; 10-08-2013 at 07:02 AM.
Parker Yacht is offline   Reply With Quote
Old 10-08-2013, 12:52 AM
  #8    
Admirals Club
 
Join Date: Aug 2013
Location: Cape Coral FL
Posts: 491
Default

How much difference in rpm?
__________________
2013 Sea Fox 226 Commander / Yamaha F200 V6
2000 Angler 185 CC / Johnson 115 Ocean Pro - GONE, but not forgotten.
lifestarts@forty is offline   Reply With Quote
Old 10-08-2013, 05:54 AM
  #9    
Admirals Club
 
Join Date: Jan 2012
Posts: 147
Default

A few hundred rpm difference like 5700 p 5900c 5800s.
__________________
Swallow The Leader
33T trip 300s
stl32 is offline   Reply With Quote
Old 10-08-2013, 06:10 AM
  #10    
Admirals Club
 
Join Date: Jan 2012
Posts: 147
Default

Boat is Contender
trip f300s that went on in March of this year, Replaced fuel lines when new motors went on, Pumped out the tanks on boat end of last year before I redid everything. Then before sea trial filled all tanks up with non-e. Did filter change with the break in service. Boat has been serviced every 100hr. I am no outboard mechanic, the brushes thing sounded like maybe it could be the issue... but now idk.
Just had the boat in the shop, they tested some things and found that there was a high percentage of leak down on some of the cylinders. Boat has about 300 hrs and like 250 are at idle. So shame on me for not running the boat enough. They did a "de carb" I don't know what it was all I know is they did that I got stuck with a bill for oil change, filters, plugs the whole 9 yards. Put boat back in water and no difference in running. Now I get to buy Yamaha ring free and add to my gas. I guess Yamaha expects you to fish with there outboards running at 4200 so they wont build up carbon.
__________________
Swallow The Leader
33T trip 300s
stl32 is offline   Reply With Quote
Old 10-08-2013, 06:21 AM
  #11    
Admirals Club
THT sponsor
 
Parker Yacht's Avatar
 
Join Date: Jan 2009
Location: Ft Lauderdale
Posts: 4,103
Default

Quote:
Originally Posted by stl32 View Post
Boat is Contender
trip f300s that went on in March of this year, Replaced fuel lines when new motors went on, Pumped out the tanks on boat end of last year before I redid everything. Then before sea trial filled all tanks up with non-e. Did filter change with the break in service. Boat has been serviced every 100hr. I am no outboard mechanic, the brushes thing sounded like maybe it could be the issue... but now idk.
Just had the boat in the shop, they tested some things and found that there was a high percentage of leak down on some of the cylinders. Boat has about 300 hrs and like 250 are at idle. So shame on me for not running the boat enough. They did a "de carb" I don't know what it was all I know is they did that I got stuck with a bill for oil change, filters, plugs the whole 9 yards. Put boat back in water and no difference in running. Now I get to buy Yamaha ring free and add to my gas. I guess Yamaha expects you to fish with there outboards running at 4200 so they wont build up carbon.

What did the boat have on it before?
I would start running some vacuum and pressure tests on the fuel systems.
Leakdown test this early, seems excessive, but, a decarb is good. Oil change and stuff has to happen after a decarb.
Always good to run the engines out after trolling for long periods of time, and let them cool down after before shutting off.
I would certainly run some pressure and vacuum test.
__________________
www.parkeryacht.com
Outboard Engine Sales and Service
Complete Boat Repair and Restoration's
954.463.1515 Office
954.463.4904 Fax
oparker@parkeryacht.com
Parker Yacht is offline   Reply With Quote
Old 10-08-2013, 06:58 AM
  #12    
Senior Member
 
Join Date: Sep 2008
Location:
Posts: 315
Default

I have to call bs on the brushes because I do believe that fuel pumps are brushless motors
woolyt2 is offline   Reply With Quote
Old 10-08-2013, 08:04 AM
  #13    
Admirals Club
 
Join Date: Jan 2012
Posts: 147
Default

Quote:
Originally Posted by Parker Yacht View Post
What did the boat have on it before?
I would start running some vacuum and pressure tests on the fuel systems.
Leakdown test this early, seems excessive, but, a decarb is good. Oil change and stuff has to happen after a decarb.
Always good to run the engines out after trolling for long periods of time, and let them cool down after before shutting off.
I would certainly run some pressure and vacuum test.
Boat had trip 250s,
What will the vacuum and pressure tests tell me?
__________________
Swallow The Leader
33T trip 300s
stl32 is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0