International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Discussion

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-29-2013, 10:55 AM
SamGreazy SamGreazy is offline
Member
 
Join Date: Jun 14, 2012
Location: Thompson's Station, TN
Posts: 141
Gas Tank Cleaning???

So, my 90 GW was hard to start everytime, if it sat for longer than a day!! It has a brand new fuel pump but still it would not get fuel up through the lines unless I gave her some ether!! Also, the fuel tank guard was half rotten and the rear strap has rusted away....so I decided to pull the fuel tank replace all the fuel lines, go electric on the fuel pump and CLEAN CLEAN CLEAN, the whole gas tank area......also before I got the Jeep it had sat for about 5 years....so I want to clean the fuel tank out while I have it out and make sure there is no debris or anything in it.....Does anyone have any idea the best way to clean it or is there some types of shops that will do this????
I would much rather drop it off at a shop, but I have no idea where to even look to find someone that would do this.
__________________
1990 Jeep Grand Wagoneer -
4 in Rusty's
31x10.5
Katzkin seat covers, headliner, and carpet
work in progress - wondering when it stops!
Reply With Quote
  #2  
Old 06-29-2013, 11:18 AM
WHSII's Avatar
WHSII WHSII is offline
Hack-Priss
 
Join Date: Feb 06, 2010
Location: Frankfort, KY
Posts: 1,804
Hello Sam,

People have put chains in the tank when off, and shaken the tank with good results, I put kerosene in mine and shook it vigerously and it seemed to clean it, as far as looking inside with a flashlight.

The problem you described could be as simple as a rubber hose that has a pin hole in it, or a steel line that has rusted and is letting fuel bleed off while sitting.

I would get it running shut it down and inspect every, and I mean every fuel line in the system, if it is wet, even just a bit, replace it.

A leak will drain fuel back from the carb or fuel pump, and it will be like trying to start it after replacing the fuel pump, you have to use a prime.

Just my thoughts...
__________________
WH

Dad's J10, Honcho, 1980 Sport Side
Build http://www.ifsja.org/forums/vb/showthread.php?t=118144

https://picasaweb.google.com/113072766039246994279/JeepJ10Honcho

Herbina 1987 Grand Wagoneer




Founding Member, FSJ Prissy Restoration Association
Reply With Quote
  #3  
Old 06-29-2013, 12:01 PM
joe joe is offline
 
Join Date: Apr 28, 2000
Location: PNWet, USA
Posts: 22,374
A plastic tank won't have a rust scale from sitting problem but since you've got the tank out remove the sender and look inside. If it sat idle for 5 years with government gas (E10) look for a white sugary deposit on the bottom. If it's there it's in your carb too. Likely what's causing your float bowl to drain while sitting. Since you replaced all your steel fuel lines rust shouldn't be an issue either unless you pumped some rust into your carb prior to replacing the lines. I'd pop the top of the carb off and have a look inside for any crud. If you find any I'd then rebuild the entire carb.
__________________
joe
"Don't mind me. I'm just here for the alibi"
Reply With Quote
  #4  
Old 06-29-2013, 07:01 PM
Hadaz Hadaz is offline
Member
 
Join Date: Feb 25, 2013
Location: Phoenix
Posts: 27
Check your local radiator shops. Some will do the work and some will not. They can clean the tank.
Reply With Quote
  #5  
Old 06-30-2013, 12:59 AM
FSJ Guy FSJ Guy is offline
 
Join Date: Mar 20, 2005
Location: Colorado
Posts: 10,062
A stock 1990 tank will be PLASTIC. No chains needed.

Unless you can see/hear debris rolling around, I wouldn't worry about it.

If the carb bowl is draining, I'd try rebuilding it first. Since it sat for 5 years, I'm sure the gaskets could use replacing.
__________________
Ethan Brady
1987 Grand Wagoneer, slightly longer than stock.

www.bigscaryjeep.com

Don't mess with me. I once killed a living hinge.
Reply With Quote
  #6  
Old 06-30-2013, 06:58 AM
Adam_Tinkerer Adam_Tinkerer is offline
Member
 
Join Date: Mar 16, 2011
Location: Newton, NC
Posts: 156
I've done the chain & kerosene with excellent results! Of course it was a steel tank though. -Adam
Reply With Quote
  #7  
Old 06-30-2013, 08:56 AM
SamGreazy SamGreazy is offline
Member
 
Join Date: Jun 14, 2012
Location: Thompson's Station, TN
Posts: 141
new carb

I have already relaced the carb...its not getting fuel to the carb once it sits....I have cracked the lines and there is no fuel that makes it up there.
__________________
1990 Jeep Grand Wagoneer -
4 in Rusty's
31x10.5
Katzkin seat covers, headliner, and carpet
work in progress - wondering when it stops!
Reply With Quote
  #8  
Old 06-30-2013, 10:50 AM
Carnuck's Avatar
Carnuck Carnuck is offline
 
Join Date: Feb 12, 2011
Location: Gold Bar, WA
Posts: 6,361
Fuel pump valves are gummed up with crud from the tank (add a filter before the pump) or the diaphragm of the pump is gone and the gas is getting into your oil. Fuel that has lots of alcohol in it can boil out after shutdown and force the needle and seat open, flooding the motor, but it evaporates pretty quickly too.
__________________
Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental.
Reply With Quote
Reply


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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Leaky Fuel Tank Fix (Pics) Mr.Wagoneer General FSJ Tech 9 01-13-2012 01:23 PM
fuel tank cleaning mweath1 General FSJ Tech 13 02-08-2011 09:52 PM
Gas Tank and Filter Sock Woes The PIG Smith General FSJ Tech 13 06-16-2008 10:09 AM
Gas Tank Cleaning Slim General FSJ Tech 13 10-31-2007 09:44 AM
bringing back the FI fuel tank ideas... AlsChopShop General FSJ Tech 12 09-19-2007 12:12 AM


All times are GMT -6. The time now is 08:36 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
corner corner