Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-27-2015, 05:08 PM   #1
Lt. JG
 
Join Date: Apr 2015
Location: Menomonee Falls, WI
Posts: 24
Default Fuel Filter Change

I'm trying to change my fuel filters on my 2000 3000 SCR. The engines are Mercruiser 5.0 L, carbed. The filters are of the spin-off variety. After I get the filter loosened gas starts to pour out of the top. I doesn't seem to stop coming. I think I drained half a quart or more before I tightened it back up. Do I need to kill all the power to he engines first or does it tend to want to drain the lines. seems like an excess amount of fuel. Any ideas??
__________________

mikebmaxum3000 is offline   Reply With Quote
Old 10-27-2015, 08:46 PM   #2
Admiral
 
biggerseagar's Avatar
 
Join Date: Dec 2010
Location: central Illinois
Posts: 1,871
Default

Are you talking about the water separater filters or the gas filter that is in the carb when you unscrew the gas line?

Roger
__________________

biggerseagar is offline   Reply With Quote
Old 10-27-2015, 09:16 PM   #3
Lt. JG
 
Join Date: Apr 2015
Location: Menomonee Falls, WI
Posts: 24
Default

Hi Roger,
Water separator filters.
mikebmaxum3000 is offline   Reply With Quote
Old 10-27-2015, 09:53 PM   #4
Admiral
 
biggerseagar's Avatar
 
Join Date: Dec 2010
Location: central Illinois
Posts: 1,871
Default

The engine is not running and the key are in the off position right....I always wait a few minutes then unscrew them off. I might get a couple drops but it should not be pouring down. Get a empty milk jug and cut it in half to catch the spill and take the old one off and put the new one on.

Or just wait to see how long the spill last.

Then put the new filter on.

I have an 01 3000 and mine doesn't even dribble when I change mine. Fuel pump still running? huummm?

Roger
biggerseagar is offline   Reply With Quote
Old 10-27-2015, 10:00 PM   #5
Lt. JG
 
Join Date: Apr 2015
Location: Menomonee Falls, WI
Posts: 24
Default

Hi Roger,
Keys were off and engine had not been run in a day or two. Someone suggested there may be some stray voltage engaging the fuel pump. I'm going to try and disconnect shore power and turn the battery switches to off and see if that helps. With my prior boat I was able to just spin them off with no leakage. I'll let you know, although I'm about to come out of the water and may not get to it for a bit. Thanks for your thoughts.

Mike
mikebmaxum3000 is offline   Reply With Quote
Old 10-28-2015, 11:38 AM   #6
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 5,304
Default

The fuel pump is after the filter/separator additionally with the engine off the pump cannot be running.

When I remove mine I get clove to a quart of gas, use a catch pan.
__________________
Mike
mmwjr is offline   Reply With Quote
Old 10-28-2015, 03:17 PM   #7
Lt. JG
 
Join Date: Apr 2015
Location: Menomonee Falls, WI
Posts: 24
Default

Thanks Mike for your insight. Now that I know it isn't unusual, I will give that a try. I appreciate your thoughts.

Mike
mikebmaxum3000 is offline   Reply With Quote
Old 10-30-2015, 01:18 PM   #8
Moderator

 
Join Date: Apr 2008
Posts: 3,510
Default

Shore power wouldn't be affecting this. Shore Power is 120VAC and the fuel pump is 12vDC. The only cross-over in those systems would be if you had the battery charger circuit turned on. All you should need to do is shut the battery switch(s) off. To be safe, shut the battery charger switch off AND the battery switches themselves and the entire 12V system shut be off.
__________________
Leave me alone, it's Boating Season!!!
shrew is offline   Reply With Quote
Old 10-30-2015, 03:48 PM   #9
Lt. JG
 
Join Date: Apr 2015
Location: Menomonee Falls, WI
Posts: 24
Default

Thanks Shrew. I'm out of the water now and will shut everything off and attempt again in a couple of weeks. I appreciate everyone's help.
Mike
mikebmaxum3000 is offline   Reply With Quote
Old 10-30-2015, 07:23 PM   #10
Commander
 
Join Date: Jul 2011
Posts: 322
Default

Do you have a fuel shut off valve?
__________________

jamanati is offline   Reply With Quote
Reply

Tags
5.0 l, fuel, fuel filter, mercruiser

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 05:34 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.