Re: [Chrysler300] stumble

["Carlton Schroeder" <schroe99@xxxxxxxxxxxx>]

We have quite a few gas stations here in northern Wisconsin that sell ethanol-free gasoline.  Most are independent, non-big name companies.  Some bigger names like Marathon sometimes carry a mid-grade gasoline that is ethanol free.  Here the prices for ethanol-free gas are about the same as 10% ethanol gas.

As Keith said, ethanol gas sitting around for a few months (sometimes even with a stabilizer) can lead to much trouble.  Since there are lots of boats, ATV's, and snowmobilers around here there is plenty of demand for non-ethanol gas.  

Carlton Schroeder
Eagle River, WI

  ----- Original Message ----- 
  From: Keith Boonstra 
  To: Bob Jasinski 
  Cc: 'bluesport62' ; Chrysler300@xxxxxxxxxxxxxxx 
  Sent: Monday, November 23, 2009 11:04 AM
  Subject: Re: [Chrysler300] stumble


    
  Well, I'm a long way from being all that knowledgeable in the science of 
  carburetors, so you are likely correct, Bob.

  But you gotta hate today's fuels. The ethanol has made a mess of things 
  in every single gasoline engine that sees only occasional use - cars, 
  boats, snowblowers, lawn mowers, chain saws, summer and winter toys, 
  etc. Experts now advise not to park anything for more than 3 months 
  without stabilizer (I prefer Sea Foam). A friend of mine solves the 
  problem (expensively) by using only 110 octane racing fuel. They can't 
  let you pump it directly into a street car, so he loads up a bunch of 5 
  gallon cans.

  Must be much smarter people than me who've figured out it makes sense to 
  take food and turn it into fuel. And the icing is that it's also such a 
  pain in the butt.

  Sorry about the rant.

  Sin-C-ly,
  Keith Boonstra

  -

  Bob Jasinski wrote:
  > I can't speak about '58 Chevy carbs, but the carbs on my G have no 
  > rubber parts except the nitrile tip on the float needle valve, and 
  > that has presented no problem with fuels containing alcohol. Older 
  > fuel pump diaphragms can fail, yes, but I have not seen the problem 
  > with carbs. The accelerator pump in the 2903S 300G carb is leather, 
  > not rubber, and I'll bet most other letter car carbs are too.
  > 
  > Bob J 
  >
  > ----------------------------------------------------------
  > *From:* Chrysler300@xxxxxxxxxxxxxxx 
  > [mailto:Chrysler300@xxxxxxxxxxxxxxx] *On Behalf Of *Keith Boonstra
  > *Sent:* Monday, November 23, 2009 7:04 AM
  > *To:* bluesport62
  > *Cc:* Chrysler300@xxxxxxxxxxxxxxx
  > *Subject:* Re: [Chrysler300] stumble
  >
  > 
  >
  > I wonder if you had your carburetor rebuilt before the prevalence of
  > ethanol. I had a terrific rebuild done a number of years back on my '58
  > Chev carb, but then along came 10% ethanol and it ate the rubber parts
  > in the carb - including the accelerator pump. I had the same coughing,
  > backfiring you are having. The only solution was another rebuild - this
  > time with the blue rubber parts (withstands ethanol attack) and now it
  > runs great. Check to see if you get a _strong_ squirt from the pump,
  > and if you don't I'll bet that's your problem.
  >
  > BTW if you're into the carb anyway, you might like to try going up a
  > size on your main jets to compensate for the ethanol as well. I did
  > that on my '70 4-4-2 and the difference amazed me. I swear it gave me
  > at least another 50 hp.
  >
  > Good Luck
  > Keith Boonstra
  > Holland, Michigan
  >
  > -
  >
  > bluesport62 wrote:
  > >
  > >
  > > HI GANG. CAN ANYONE GIVE ME AN IDEA WHAT TO LOOK FOR. ON MY 62 SPORT
  > > 383WHEN I PUNCH IT FROM A DEAD STOP IT BACKFIRES AND STUMBLES. I HAVE
  > > DONE ALL THE NORMAL STUF. CARB WAS REBUILT BY AN EXPERT 40 YEARS IN
  > > THE BUSINESS CHANGED PLUGS WIRES AND PLUGS HAVE MOPAR ELECTRICT
  > > IGN.TIMEING IS SET AT 10 DEGREES.I KNOW IT SOUNDS EASY BUT I AM STUCK
  > > ON THIS ONE.IS THERE ANYTHING I AM OVERLOOKING. 3000 MILES ON REBUILD.
  > > THANKS . JOE LUCIANO HOWARD BEACH N.Y.
  > >
  > >
  >
  > [Non-text portions of this message have been removed]
  >
  > 

  [Non-text portions of this message have been removed]



  

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