Saab: Carb/Fuel Injector Cleaner?

_Al_ wrote:
:: you can use some stuff called `sea foam` from Napa, or....depending
:: upon how brave you are...you can do water injection. water
:: injection, you just simply let the engine suck about 2 cups of water
:: through a vaccum line, don't let it stall, feed it slowly, keep
:: rpm's up.....

You get a way better result with water, if it's carbonated water.

Cheers!

_Al_ wrote: 

You do what now??

What purpose does the water serve?

--
Grunff

you can use some stuff called `sea foam` from Napa, or....depending upon how
brave you are...you can do water injection. water injection, you just simply
let the engine suck about 2 cups of water through a vaccum line, don't let
it stall, feed it slowly, keep rpm's up..... once it's all through let it
idle for a few seconds then shut it off, let it sit for about 45 minutes,
then fire it up....then just to be safe you might want to do a oil change
(250k....might have a little blowby at the rings)
"Mick Forstag" <com> wrote in message
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Grunff wrote:
::: seconds then shut it off, let it sit for about 45 minutes, then
::: fire it up....then just to be safe you might want to do a oil
::: change (250k....might have a little blowby at the rings)
::
:: You do what now??

Yes, it works better than any fuel-additives.

:: What purpose does the water serve?

You use carbonated water, feed it through the inlet-manifold. The
(carbonated) water will react with any coke sitting on the valves or other
places.

Cheers!

In article <bv5d8n$o2p79$news.uni-berlin.de>,
com says... 
when it boils off, into steam, and is under compression, it softens and
loosens any carbon deposits. Pretty much like the side effect benefit of
running water injection under boost.

That is designed to stop knock, but does have the side effect of helping
to clean the engine.
--
The poster formerly known as Skodapilot.
http://www.bouncing-czechs.com

The water method suggested by others is a good method for cleaning deposits
from the valves, but it doesn't do anything for the fuel injectors (as your
post requested). BTW, American Motors Corp did the original testing about
30 or 40 years ago, and they found that plain tap water (it doesn't need to
be carbonated) was more effective at cleaning the valves than any of the
special preparations that were available.

For the fuel injectors - and a car of that age and mileage likely has
injectors that need cleaning if they haven't yet been replaced - an additive
to the fuel would be most effective. I used to have a system that would
allow the car to run on a 12 fl. oz. can of Gumout to perform the cleaning,
but that only works with mechanical fuel pumps and carbureted engines.

I got somewhat improved performance and fuel economy after cleaning the
injectors in my 9000 when it had about 120K miles on it. In my area,
certain gas stations sell "E-85" fuel, which is 85% ethanol and 15%
gasoline. It is an alternate fuel for certain cars that are designed to
operate on this mixture - the most readily available one is the Ford Taurus.
Ethanol also happens to be the main ingredient in most fuel injector
cleaners available in the store for $5 a pint. E-85 typically costs about
the same as regular unleaded (or less in some places). I used 2 gallons in
a nearly full tank. It is best to do this when the weather is warm because
ethanol doesn't vaporize as well as gasoline and may cause problems with the
engine being able to idle properly in cold weather. Don't use it too often,
as it is more likely to corrode some metal parts and soften some rubber and
plastic parts than regular gasoline. And don't pump it directly into your
tank, use a one or two gallon fuel jug. This way you can (somewhat)
accurately measure how much you put in, and you don't risk the station
attendant turning off the pump and telling you that you can't use that fuel
in your car. If they ask, you can tell them you plan to use it in your lawn
mower (it works well there too).

I tried this and it worked well for me. YMMV.

Walt Kienzle
1991 9000T


"Mick Forstag" <com> wrote in message
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On Tue, 27 Jan 2004 11:15:22 -0000, MeatballTurbo
<com> wrote:
 

For the fuel and injection systems, "Chevron Techron Fuel
System Cleaner" is highly recommended and known to actually work.
Available in the USA, I don't know about Europe. Don't get fuel
injection cleaner, you want the "system" cleaner.

I generally stay away from snake oil but this stuff actually works.

I recently used a injector cleaner supposedly designed for cars with more than
60,000 miles on them. Made by STP or Gumout or one of those, can't remember
which.
It did help. I was trying to solve a rough idle problem and that eliminated
most of it.
I use cleaners every so often. It's easy to get water in the gas tank around
here and one of the things the gas additives do is help get that out.


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