Hi, everyone...
Here's another theory on the Bad Gas issue I brought up a while back.
The car in question was stored for five years and run periodically. The
tank was never let to get below 1/2 full and then the owner only put in
a few gallons. So the tank was also never completely full either.
Because the car runs well for a distance indicates that the fresh gas is
mixing with the gas already in the tank and disputes the theory of bad
gas. Because bad gas is heavier than fresh gas and because gas is drawn
from the bottom of the tank, also disputes the bad gas theory.
The new theory is that condensation formed in the upper empty portion of
the tank and slowly ate a hole through the metal tube that draws gas
from the bottom of the tank. When fresh gas is added to the tank, the
hole is submerged and therefore the car runs well. When the gas level
gets below the hole, the tube now starts sucking air as well as gas. The
resulting mix of extra air in the gas causes the sputtering and
backfiring. The movement of the car sloshes the gas around enough so
extra gas is drawn through the hole and keeps the car going.
The tank is still going to pulled and cleaned just to be safe, and the
sending unit and tube will be replaced. Current question is what is the
manufacturer of the original gas tank on a 1974? I suspect it's a
Javelin but am not sure. This will help determine the proper sending
unit and tube to get. Also is there anything I should know about
dismounting the tank? I don't have a copy of the HTML for the tech tips
in _Brickline_ and the web site is down. So I can't look up anything
without going through each issue. If someone has the HTML file, could
you please email it to me?
I will let you know if the above theory is correct once I get everything
apart.
TIA... Bill.
TIA... Bill.
--
William (Bill) H. Whitney, VIN #624 (& mini-B for sale for best offer)
Owner, Micro Business Applications, dBase/Clipper/FoxPro consultant
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