15gal to 20gal conversion instructions - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-18-2011, 07:11 PM
Thread Starter
buster01's Avatar
Join Date: May 2011
Location: Vacaville CA
Posts: 185
buster01 is on a distinguished road
15gal to 20gal conversion instructions

You do not have to remove the tank to do this job. You only need one special tool that you can get at a auto parts store. Its a spark plug thread tapp.

Run the tank down to around 1/2 tank.

Remove the license plate bracket by removing 2 #20 torx screws.

Remove the 6 Philip's screws holding the filler Assembly to the plastic filler bracket.

Remove the 3 #20 torx screws holding the plastic filler bracket and remove the bracket.

Remove the 2 hose clamps on the TANK end and remove the filler Assembly with the 2 hoses attached.

Put a piece of duct tape over the larger of the 2 openings in the tank. This will be the fill tube.

Insert the spark plug tapp into the vent tube opening in the tank and screw it down as far as you can by hand. Using a pair of channel lock pliers, screw the tapp in about 5-6 more full turns.

Using the channel locks, grip the part of the spark plug tapp thats sticking out and firmly wiggle and pull until the inner vent tube comes out of the outer vent tube in the tank.

Cut the tube off on the opposite end from where you threaded in the tapp to about 3 inches long.

Reinsert the 3" long piece of tubing into the vent tube until it is flush.

Reinstall everything back in reverse order.

You now have a 20 gallon tank and you did not have to remove the tank to do it.
buster01 is offline   Quote

Thread Tools

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
15 to 19 gallon conversion project 97sport09 TJ General Discussion Forum 8 12-11-2010 01:28 PM
Arrrrrgh! Can't find decent instructions for assembly of soft top hardware. InfernoGirl JK General Discussion Forum 11 09-16-2010 04:37 PM
Fuel Injection Conversion nickc YJ Tech Forum 7 08-26-2010 01:13 PM
V8 conversion soon, advice on Novak conversion parts? DontTellMeAboutCajun TJ General Discussion Forum 7 08-21-2010 03:26 PM
My SOA Conversion Plan; please critique. . . atomicjoe23 YJ Tech Forum 56 07-13-2009 02:22 PM

All times are GMT -5. The time now is 03:37 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner