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Bing 54

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williamtsullivan(at)att.n
Guest

Posted: Wed Apr 15, 2009 1:46 pm Post subject: Bing 54

John H.- I remember you mentioning to someone about changing the choke piston and gasket whenever a Bing 54 is re-built.  Something about that part is not included in the rebuild kit.  What are the symptoms of a failure of that gasket?  I have a very rough idle, adjusting the air screw doesn't help much, and it seems to run rich at lower RPMs.

   I think a re-build is in order.

  

                                           Bill Sullivan

                                           Windsor Locks, Ct.

                                           FS 447

    

 [quote][b]

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 15, 2009 2:05 pm Post subject: Bing 54

[quote] ---

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 15, 2009 2:10 pm Post subject: Bing 54

Bill:

  

 Believe it would be the choke piston and seat seal,  or something like that.  Would have to look it up in the parts  book.

  

 They seem to fail with extended time, or did back  in my day.

  

 Another reason for not wanting to idle normally, is  an engine that is not operated normally.  If you only run it on the ground,  never going full power or cruise power, the engine (crank case) with load up  with excess oil.  Causes irratic/poor running and a lot of blue  smoke.

  

 If you are running rich at idle, it should probably  blow black smoke.

   

 I'm not too good at two strokes any more.   Hardly ever operate one except my chain saw and weed eater.  For some  reason they don't seem to have all the problems the Rotax two strokes  have.

  

 john h

 mkIII

 [quote]    

                               John H.- I remember you mentioning to someone about changing          the choke piston and gasket whenever a Bing 54 is re-built.           Something about that part is not included in the rebuild kit.  What          are the symptoms of a failure of that gasket?  I have a very rough          idle, adjusting the air screw doesn't help much, and it seems to run          rich at lower RPMs.

           I think a re-build is in order.

          

                                                            Bill Sullivan

                                                               

 	  Quote: 	
		   



	
[b]

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

lucien

Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM

Posted: Wed Apr 15, 2009 2:26 pm Post subject: Re: Bing 54

[quote="williamtsullivan(at)att.n"]John H.- I remember you mentioning to someone about changing the choke piston and gasket whenever a Bing 54 is re-built.  Something about that part is not included in the rebuild kit.  What are the symptoms of a failure of that gasket?  I have a very rough idle, adjusting the air screw doesn't help much, and it seems to run rich at lower RPMs.

   I think a re-build is in order.

  

            ï¿½            ï¿½           ï¿½     Bill Sullivan

            ï¿½            ï¿½           ï¿½     Windsor Locks, Ct.

            ï¿½            ï¿½           ï¿½     FS 447

    

  	  Quote: 	
		  [b] 	




Most likely the idle jet is plugged. this happens over time easily on the bing especially on the 2 stroke if you let it sit for long periods of time. This blocks off the airflow through the jet and makes the thing run full rich at idle no matter how much you open the idle mix adjust screw. 



If the choke weren't sealing right you'd have a more extreme version of that, up to and including 4-stroking or even 6, 8, 10 or more -stroking as you approached full throttle....... 



Don't ask me why I know that......



Pull the choke plunger and check the rubber stopper at the bottom. If it's really hard or chewed up replace it. Just an impression on the surface is ok.

Check the action of the choke and make sure the plunger seats fully by itself when you close it with the lever. I.e. press on top of the plunger.... Any drag in the choke system can cause it to hang open a little bit, which can be a BIG eye opener on takeoff....



LS

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_________________
LS
Titan II SS

Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Wed Apr 15, 2009 2:38 pm Post subject: Bing 54

At 05:44 PM 4/15/2009, william sullivan wrote:

 	  Quote: 	
		     John H.- I remember you mentioning to someone about changing the choke 

 piston and gasket whenever a Bing 54 is re-built.  Something about that 

 part is not included in the rebuild kit.  What are the symptoms of a 

 failure of that gasket?  I have a very rough idle, adjusting the air 

 screw doesn't help much, and it seems to run rich at lower RPMs.


	


Bill, what rpm are you trying to idle at?  2-strokes don't idle smoothly at 

low rpm's, and if you try, the vibration can cause havoc with the float and 

needle, letting too much fuel through.



How's the rebuild going?  You going to be ready to fly it this year?



-Dana

--

  A cement mixer collided with a prison van on the highway. Motorists are 

asked to be on the lookout for sixteen hardened criminals.

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williamtsullivan(at)att.n
Guest

Posted: Wed Apr 15, 2009 3:10 pm Post subject: Bing 54

I pulled the choke stopper, and cleaned a bunch of soft brown goo off the bottom.  Apparently, that was the gasket.  When it was clean, it was metal to metal.  I am getting a kit and choke parts in, but I was wondering whether that would do it.  It has a very rough shaking from idle (2000 rpm) through about 3500 rpm.  It smooths out at higher rpms.  Smokes quite a bit when it's doing it.  I found a lot of brownish goo in the main jet, and a small blob in the bottom of the bowl.  Ran a lot better when the main was cleaned.  Prior to cleaning it was not running without a little choke, and now runs but shakes.  By the way, the air screw adjustment made no difference- that's why I took the choke apart.  

    I am not planning on having the Firestar ready this year- I am going to take my time, and even if the plane is ready I am not.  Lessons will come after repairs, and I want them fresh in my head when I am ready.  Also, my money has been going to my kids lately.  They can spend it faster than my retirement can pay for it.  I am having fun working on it anyway.

  

                                          Bill Sullivan

                                          Windsor Locks, Ct.

                                          FS 447 

 [quote][b]

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williamtsullivan(at)att.n
Guest

Posted: Wed Apr 15, 2009 3:17 pm Post subject: Bing 54

John- It does look like blue smoke, which clears up when run over 5000 rpm for a bit.  I am not doing any extended running at all, but adjust, run, shutdown, adjust, etc.  This shakes a lot more than others I've seen.  A carb kit won't hurt.  A friend says it needs to be run hard to blow out the oil, but I want the goo out first.  You are right about 2-strokes.  My chain saw and brush saw don't give me trouble like this.  Fresh gas usually fixes them.

  

                                            Bill Sullivan

                                            Windsor Locks, Ct.

                                            FS 447

 [quote][b]

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williamtsullivan(at)att.n
Guest

Posted: Sat Apr 25, 2009 5:20 am Post subject: Bing 54

Here is what I found while rebuilding the Bing 54:

 Lots of caked in goo.  The choke seal was completely missing.  No "O" ring on the needle.  The needle was installed with the snap ring on top of the plastic cup, instead of under it.  No equalizer tube- I installed one.  Scott's tip on his web site about removing and installing the two springs was a great help- it takes all the work out of it.  

   Apparently the carb problems were the cause of the poor running at idle- the same problem I had last year.  Runs smooth, and will come off idle without hesitation.  Just a little shudder at an idle, now and then.  Almost no smoke- it would smoke at an idle before.  All numbers in the carb are correct, per the chart.  This unit is the easiest carb I've been into- even easier than a Carter YO, and far different from a Rochester.  

   Thanks for all the help.

  

                                                  Bill Sullivan

                                                  Windsor Locks, Ct.

                                                  FS 447

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