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keesan
Cold weather vehicular transportation Mark Unseen   Dec 10 19:52 UTC 2002

Discuss any problems of getting from here to there by vehicle in winter
weather.
64 responses total.
keesan
response 1 of 64: Mark Unseen   Dec 10 19:54 UTC 2002

Jim recently found two types of 'dry gas'  or gasoline antifreeze in the
store, one being methyl alcohol and the other isopropyl alcohol in cute little
plastic containers with funnel tops.  The second says it displaces more water.
It also costs twice as much.  Next door to Murray's auto supply is a pharmacy
selling 91% isopropyl alcohol for half the price of the Murray's product. 
He asks if there is any difference in composition between these products. 

Also, why would his fuel pump have stopped working.  It worked in April and
he has not driven the car since then.  He is currently replacing it with a
new $35 model.  Did ice freeze in it and damage it?
rcurl
response 2 of 64: Mark Unseen   Dec 10 21:22 UTC 2002

Meijer has 99% isopropanol. 

However even 99% isopropanol *contains water*, which will separate out
when mixed with gasoline (water is *very* insoluble in gasoline). 

Using anhydrous methanol or isopropanol is adding an "oxygenate" to the
gasoline, very similar to ethanol in many respects - you are concocting
your own "gasohol". There are drawbacks, however: 

Methanol has been found to damage some fuel system gaskets, at least
at one time. Corrosion inhibitors are required with methanol.

http://www.ethanol-gec.org/clean/cf14.htm gives some ranges for use
of MBTE, ethanol and methanol as fuel additive.

Any oxygenate will tend to *absorb* moisture and may enhance the
emulsification of water into gasoline. If this separates out and freezes,
or causes corrosion, in the wrong parts, it could be trouble.

So...beware.
gull
response 3 of 64: Mark Unseen   Dec 10 22:02 UTC 2002

The idea of 'drygas' or 'gas line antifreeze' is to emulsify the water into
the gas so it can't freeze, and so the engine doesn't get it in one big
slug.  91% alcohol would be less desirable because it's presumably already
9% water.
keesan
response 4 of 64: Mark Unseen   Dec 10 22:47 UTC 2002

Jim also wonders whether it would help to pour dry gas into the filter before
running the car, in case the ice has formed in there.  (This is for his
housemate's car, which he is trying to fix at the same time).  I will let him
know that you two are implying that the store product is more than 97%
isopropanol (which is what he can buy at the drugstore - not 99%).  
mdw
response 5 of 64: Mark Unseen   Dec 11 02:18 UTC 2002

Absent any other factor, the freezing point of emulsified water is
exactly the same as the freezing point of plain pure water.  An emulsion
is merely a mechanical mixture of two fluids.
keesan
response 6 of 64: Mark Unseen   Dec 11 02:57 UTC 2002

Jim is annoyed at his car, which would not start, and he just finished
changing the fuel pump (he proved the gasoline was not going through the old
one) for $35, and now it still won't start, unless he pours gasoline into the
air entry to the carburetor so now he has to take that apart and clean it.
What might have caused both of these parts to go bad since April, when the
car was last driven?  Could it have been ice?  He cannot sell it easily unless
it will start, regardless of the exhaust system.  He says he does not want
to own a car.  The neighbor who gave us his old 1986 car (which does start)
offers to lend us his newer station wagon with a car-top carrier for long
items.  (Still won't handle refrigerators as well as a hatchback).  
rcurl
response 7 of 64: Mark Unseen   Dec 11 06:41 UTC 2002

The gas in a carburetor not run since April could well evaporate and
leave "gum", which can "gum" the works. 
gull
response 8 of 64: Mark Unseen   Dec 11 14:59 UTC 2002

I suspect gas that has gone bad.  It could also be a bad electric fuel
pump, if this car has one -- sometimes they seize.

Since it runs if he pours gas into the carb, we know the ignition system
is working and the engine has compression.  The first thing I would do
is see if fuel is actually getting to the carburator.  Take the hose off
the carburator, stick it in some kind of container, and (carefully!) see
if fuel comes out when you crank the engine.  (On some cars, merely
turning the key on will be enough.)  If fuel comes out, the problem is
in the carburator.  If fuel doesn't come out, there's a bad fuel pump or
a blockage someone in the system.
gull
response 9 of 64: Mark Unseen   Dec 11 14:59 UTC 2002

s/someone/somewhere/
keesan
response 10 of 64: Mark Unseen   Dec 11 17:08 UTC 2002

But if you read carefully my previous response, you will note that Jim just
replaced the bad fuel pump ;)

How often would one need to run a car so that these things don't happen?

Can someone explain to me (who has not looked inside a car) just how the fuel
pump, hose, carburetor, engine, etc., are connected together?  Jim is a lot
better at fixing things than explaining them.  He says he wants an electric
car if he has to have a car because they don't have any of the above to go
bad and if you store them in a garage to prevent rust, and charge the battery
a bit once in a while, they ought to be usable twice a year without clogging
or freezing.  But nobody has offered him a free used electric car.  

The other solution is a car coop but there are rumors that they would have
to pay astronomical insurance rates.  Borrowing the neighbor's car would work
except we go to Detroit twice a year for a few days at a time.  Biking from
the train station (15 miles through the more interesting parts of Detroit)
would be possible but I don't like biking in late December due to ice. 
Getting a ride (30 miles round trip) from the train station would work. 
Detroit might conceivably even run buses to Warren.
rcurl
response 11 of 64: Mark Unseen   Dec 11 17:57 UTC 2002

If you want  a  car to use just twice a year I suggest you rent one.
The cost to you would be less than the insurance and registration 
to keep a car yourself,  not to mention the problems of maintaining
a car run only a couple of times a year. 
keesan
response 12 of 64: Mark Unseen   Dec 11 19:51 UTC 2002

The cost of renting a car is actually quite a bit more than the cost of owning
one which you only insure for a few days a year and do your own maintenance
on.  It was $30/3 days for rental plus $75 for the insurance to rent a car.
Owning a car costs $27/year for a license plate plus $20/month for insurance
and our insurance company lets us suspend it for all but a few days a year.
This year it is also costing $35 for a fuel pump - total cost $27 plus $35
plus a few dollars for insurance.  And $4 for dry gas.  Still way under the
$200 or so it would cost to rent twice a year.  But also a lot of Jim's time.
He is still trying to track down where between the fuel pump and the
carburetor air intake is clogged, one step at a time.  Cheap entertainment
and free education.  At least it is warmer out today.  

Would it help to run it in the driveway for a few minutes every month?
rcurl
response 13 of 64: Mark Unseen   Dec 11 20:45 UTC 2002

You want to run it long enough for it to fully  heat up and then some
to top off the battery charge. You can condensation in the cylinders
and in the oil if you run it only a short time.
slynne
response 14 of 64: Mark Unseen   Dec 11 22:44 UTC 2002

check with SMART to see if there is a bus from Detroit Amtrak (or the 
Royal Oak Amtrak station) to Warren. 
gull
response 15 of 64: Mark Unseen   Dec 12 14:45 UTC 2002

When you get it running again, buy a bottle of Stabil.  Add it to the
gas tank right before you fill the tank.  It will keep the gas from
degrading in storage.

As for your other question...
The fuel pump is what moves the fuel from the fuel tank to the
carburator.  In modern cars it's an electric device either in or near
the tank.  In older cars it's mechanical and mounted on the engine.  The
carburator takes the liquid gasoline and mixes it with air from the air
cleaner, turning the gasoline into a fine mist in the process.  It's got
a lot of complicated little passages and nozzles to help regulate the
fuel mixture.  From there, the fuel/air mixture travels through the
intake manifold to the intake valves, and from there into the cylinders
to be burned.
rcurl
response 16 of 64: Mark Unseen   Dec 12 16:26 UTC 2002

This reminds me of the time I was on a long trip late at night with a
bunch of people and in order to pass the time and stay awake I asked a
young woman to try to explain how an automobile operates. She didn't know
much at all about autos, so her explanation was absolutely hilarious and
instead of being in danger of falling asleep I was in danger of driving
off the road while laughing so hard.

In regard to the above - I've generally had the feeling that gasoline is
already concocted to do what it is meant to do, and that these
"additives", like STP and Stabil, etc, are mostly "snake oil" remedies
that do more to empty your pockets than anything for the operation of a
vehicle. They may be otherwise harmless, but they may also be detrimental.

keesan
response 17 of 64: Mark Unseen   Dec 12 16:34 UTC 2002

Jim's car is 1987 (older, I presume).  He asks if anyone has an unwanted
rooftop carrier for the 1986 car that mounts to side gutters.  Today he will
crawl under the 1987 car to see if he can improvise a new exhaust system or
patch for the hole in the old one (the part leading to the muffler).  He is
afraid if he tries to replace it something will either not come off or will
break.

Yesterday he got it running by using a bike pump on some hose (presumably
between fuel pump and carburetor) to put enough pressure on the system to
unstick some valve (he surmises).  He still thinks the fuel pump that he
replaced tested bad as well, but maybe it would have functioned for a while
longer.

If he fixes the exhaust system we have to decide which if either car to keep.

Jim and I both get sick from diesel fumes so don't ride buses.  I wish this
country still had a good electric trolley system.
rcurl
response 18 of 64: Mark Unseen   Dec 12 17:13 UTC 2002

Yes, I have a gutter-mounting roof rack I will sell for $20. In fact,
it came off a 1986 car, so should feel right at home again. E-mail me.
keesan
response 19 of 64: Mark Unseen   Dec 12 18:37 UTC 2002

Jim was hoping someone would want to give him the old roof rack for free. 
Kiwanis used to throw out all the ones that came in since there is no longer
any market for them.  We can ask Kiwanis to save us one.  Jim used to find
them at the curb (like bed rails on wheels, they were all over the place).
gull
response 20 of 64: Mark Unseen   Dec 12 20:58 UTC 2002

Re #16: I agree in most cases, but Stabil has a good reputation, and I've
used it with good results.  Gasoline you buy at the pump is formulated with
the idea you'll use it within a few weeks, because most people do.  Putting
in the kinds of additives that are in Stabil would increase the price
without doing most people any good.
rcurl
response 21 of 64: Mark Unseen   Dec 12 22:13 UTC 2002

How have you demonmstrated it has had an effect different from not having
used it? 

keesan
response 22 of 64: Mark Unseen   Dec 13 00:46 UTC 2002

Jim says there is a strong solvent called carburetor cleaner.
In the process of trying to get at the saw he is cleaning out all the bikes
from the garage and making space for one car - which one?
We have 14 aluminum front wheels for mountain bikes and three mountain bikes
without front wheels.
He was supposed to be crawling under the car today but got sidetracked.
He may do it tomorrow in the freezing rain instead.  Or in the dark.
gull
response 23 of 64: Mark Unseen   Dec 13 01:15 UTC 2002

Re #21: I haven't, admittedly.  I wouldn't be eager to ruin a $300
carburator to prove the point.
rcurl
response 24 of 64: Mark Unseen   Dec 13 05:34 UTC 2002

That fear is what all those manufacturers of various concoctions to add to
your gas or oil count on. I find it very hard, though, to find reports of
good scientific tests of them. That may be in part that no one wants to
spend the money to show some $3 can of stuff doesn't work, as hardly
anyone would learn about that (and the company can always quickly
repackage the stuff). 

I never used any concoctions in the 1986 Subaru I recently scrapped.  The
engine was doing fine, the only engine work had been replacing the timing
belt, it used little oil, gas mileage was near new. However the body had
rusted beyond safety limits at 187,000 miles. Using any additives would
have been just wasting money. 

I look up the MSDS for Sta-Bil Fuel Stabilizer, a Gold Eagle Co product.
Its composition is given as

     0 - 5 %    ADDITIVE  (that's the snake oil)
    95 - 100 %  HEAVY AROMATIC NAPHTHA (SOLVENT NAPHTHA)
     0 - 5 %    NAPHTHALENE

That's the catch in MSDSs, of course. They don't have to identify all
the ingredients chemically - just identify the hazards associated with
the product. 
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