Dual Fuel Tank Gremlins - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Join the Defender Source Community Today

Thread Tools
Old June 23rd, 2008, 10:08 PM
nimbusnic's Avatar
Status: Offline
Classic Saudi Arabian 110
Join Date: Mar 2008
Location: Abilene, Texas, USA
Posts: 38
Dual Fuel Tank Gremlins

I have a classic 110 (LHD, 3.5 RV8, dual carbs) with dual fuel tanks. The auxiliary tank is located under the front passenger's seat box. The aux tank's fuel pump was recently replaced, and the truck runs fine off of this tank. However, when I switch to the main fuel tank the truck will idle fine but any excessive amount of acceleration or running at high speed will cause the engine to bog down and lose all power (without completely stalling). Before placing some seafoam in the main tank, it would not even idle off the tank. I do know that the previous owner used Stabil fuel stabilizer in the tank approximately six months ago. What is really crazy is that when operating the truck in hot temperatures (it's been over 100 degrees recently here in Texas) the tank works just fine, and the engine seems to have slightly better acceleration. I suspect either a failing fuel pump, clogged fuel filter, clogged fuel lines, or maybe even a breathing problem. Any help in diagnosing this problem will be much appreciated.

Reply With Quote
Old June 24th, 2008, 12:52 AM
JimC's Avatar
Status: Offline
Jim Cheney
NAS 110 #145
Site Team
Join Date: Sep 2003
Location: Stuttgart, Germany
Posts: 7,115
Its just probably all gunked up. I dont know how the old fuel pumps look, but its a typical symptom of a clogged pickup screen on the newer trucks. Instead of dumping cleanser in there to loosen all the junk and move it through your engine, why not drop the tank, pull the pump and just clean it all out?
Reply With Quote

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

fuel, fuel tank

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
300 Tdi Egt Q?????? Buckon37s Defender Technical Discussions 37 July 11th, 2012 10:26 AM
I am dropping the fuel tank and I have a couple of questions, help QUEST Defender Technical Discussions 24 September 26th, 2009 02:26 AM
Leaky Fuel Tank cbass Defender Technical Discussions 12 June 2nd, 2005 03:50 PM
Air filters and a bad fuel tank valve thingy! RickM Defender Technical Discussions 1 August 9th, 2004 02:29 PM
How much work to drop the fuel tank? BarryO Defender Technical Discussions 5 July 15th, 2004 05:06 PM

All times are GMT -5. The time now is 06:28 AM.