Re: Fuel tank made from Stainless steel?

["therealdmcvegas" <DMCVegas@xxxx>]

--- In dmcnews@xxxx, "Walter Coe" <Whalt@xxxx> wrote:
<SNIP>
I thought I would mention this
> idea to you (and the rest of the group) for suggestions. In order 
to reduce
> the noisy fuel pump problems caused by hot fuel, I'm thinking 
about a new
> fuel tank made from stainless.
<SNIP>

In all likelyness, a new gas tank is not going to solve the 
problems of a noisy fuel pump. I've had an idea myself about 
fixing this, but spare time has not been plentiful lately. Let's take 
a look at the problem that causes the noise:

1. The high pressue line on the fuel pump is touching the 
fiberglass underbody, and thus transmits the vibrations that 
resonate throughout the car. Solution: Reposition the pump to 
avoid contact, or simply shove a foam cusion between the line 
and the hose and the underbody.

2. Gasoline gets hot, softens the pickup hose on the pump, and 
negative pressure inside the hose causes it to collapse. Thus 
the fuel pump is starved of liquid to lubricate it, and it begins to 
whine.

Problem A: We can't keep the gasoline cool, it WILL heat up from 
ambient air temp alone, if not the coolant lines, the front radiator 
exhaust, or the heat from the engine that the warm gasoline in 
the return lines bring. So nevermind trying to cool fuel. Deflectors 
for the front radiator are a waste of time, materials, and vehicle 
weight. The prevent high flow exhaust from the front radiator, and 
they can cause a pressure lock-up at speeds over 70MPH as I 
have been told.

Problem B: The pickup hose is collapsing. We know that either 
old soft rubber, or general heat is the cause. Replacing the hose 
is an option, but it just goes bad again, and the circle returns. A 
spring inside of the hose has been the only viable option so far. I 
think it's a great idea, but I know it is not the best. A common 
myth is that the spring will rust, this is NOT true. But, if you have 
ever installed one, you know that it can be a major pain! In 
addition, the if the spring is not streched properly, it will 
straighten the hose, and can cause a kink. So installing one has 
to be a science.

Solution:
If we can't build a better mouse trap, then why bother? The best 
way to solve a problem is to prevent it from happening in the first 
place. So rather than catch that mouse, let's just throw some 
cheese over the nieghbor's wall so it will go away. In other 
words, let's get rid of our problem: The pick-up hose!

Rather than connect the pick-up hose, just extend the baffle to 
reach under the fuel pump, and attach the fuel pickup screen to 
the bottom! Problem solved! No more noise!

Ideas, comments?

-Robert
vin 6585 "X"