Which gas tank empties first?
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 1,172
Likes: 71
From: MA
Which gas tank empties first?
My passenger side gas sending unit is acting up. I want to use some Techtron to try to clean it. I have read all the pertinent posts and it appears that the right tank is used first and then the left tank. This sounds odd to me as I would think that this would unbalance the weight of the car. I would think that it would use both tanks for even weight distribution.
Also, it sounds like the left tank is filled first. Is this correct?
Based on what I have read it sounds like I should put the Techtron in when the tank is half full as the whole bottle would end up in the passenger tank. Is this correct?
Also, it sounds like the left tank is filled first. Is this correct?
Based on what I have read it sounds like I should put the Techtron in when the tank is half full as the whole bottle would end up in the passenger tank. Is this correct?
Team Owner
Joined: May 2001
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My passenger side gas sending unit is acting up. I want to use some Techtron to try to clean it. I have read all the pertinent posts and it appears that the right tank is used first and then the left tank. This sounds odd to me as I would think that this would unbalance the weight of the car. I would think that it would use both tanks for even weight distribution.
Also, it sounds like the left tank is filled first. Is this correct?
Based on what I have read it sounds like I should put the Techtron in when the tank is half full as the whole bottle would end up in the passenger tank. Is this correct?
Also, it sounds like the left tank is filled first. Is this correct?
Based on what I have read it sounds like I should put the Techtron in when the tank is half full as the whole bottle would end up in the passenger tank. Is this correct?
Btw, it's "Techron".
Race Director
Joined: Jun 2013
Posts: 12,414
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From: DFW TX
Le Mans Master
Joined: Feb 2012
Posts: 6,644
Likes: 479
From: OK
Those are the late 03 and 04 FFS tanks.
The tanks from the earlier years are similar except that there are access panels which allow the removal/replacement of the electric pump or siphon pump without dropping the tanks. On the late 03 and 04 the tanks need to be dropped to service either pump.
The tanks from the earlier years are similar except that there are access panels which allow the removal/replacement of the electric pump or siphon pump without dropping the tanks. On the late 03 and 04 the tanks need to be dropped to service either pump.
Racer
Joined: Apr 2013
Posts: 333
Likes: 10
From: Gilbert AZ
Like it or not the EPA played a major role in the requirements for the new fuel system. This from an article I have about the FFS system:
Advantages and Features
The new fuel tank system was designed to accommodate future LEV 2 emission requirements. This was accomplished by
moving as many components and fuel lines as possible inside the fuel tanks, to minimize hydrocarbon emissions. A
flexible metal crossover hose assembly replaces the former rubber one, because the permeable rubber allowed a small
amount of hydrocarbon to pass through.
The redesign also includes more isolation and noise control for the electric fuel pump, which now has greater flow
capacity to supply higher output engines.
Advantages and Features
The new fuel tank system was designed to accommodate future LEV 2 emission requirements. This was accomplished by
moving as many components and fuel lines as possible inside the fuel tanks, to minimize hydrocarbon emissions. A
flexible metal crossover hose assembly replaces the former rubber one, because the permeable rubber allowed a small
amount of hydrocarbon to pass through.
The redesign also includes more isolation and noise control for the electric fuel pump, which now has greater flow
capacity to supply higher output engines.
Thank you for the information - everyday I learn something new.
Much appreciated.
Le Mans Master
Joined: Feb 2012
Posts: 6,644
Likes: 479
From: OK
Like it or not the EPA played a major role in the requirements for the new fuel system. This from an article I have about the FFS system:
Advantages and Features
The new fuel tank system was designed to accommodate future LEV 2 emission requirements. This was accomplished by
moving as many components and fuel lines as possible inside the fuel tanks, to minimize hydrocarbon emissions. A
flexible metal crossover hose assembly replaces the former rubber one, because the permeable rubber allowed a small
amount of hydrocarbon to pass through.
The redesign also includes more isolation and noise control for the electric fuel pump, which now has greater flow
capacity to supply higher output engines.
It would seem that elimination of the access panels was one of the costs to achieve the minimum emission level requirements.
Advantages and Features
The new fuel tank system was designed to accommodate future LEV 2 emission requirements. This was accomplished by
moving as many components and fuel lines as possible inside the fuel tanks, to minimize hydrocarbon emissions. A
flexible metal crossover hose assembly replaces the former rubber one, because the permeable rubber allowed a small
amount of hydrocarbon to pass through.
The redesign also includes more isolation and noise control for the electric fuel pump, which now has greater flow
capacity to supply higher output engines.
It would seem that elimination of the access panels was one of the costs to achieve the minimum emission level requirements.
I appreciate all the info dude... you are a great resource... and a humble at that.
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Great info - thanks.
