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fuel filter

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williamtsullivan(at)att.n
Guest

Posted: Mon Apr 14, 2008 4:00 pm Post subject: fuel filter

Welcome back, John.

  On my Firestar, the fuel line comes up to an in line fuel filter (see through) that is mounted at about a 45 degree angle. When running, it always has a large air bubble in it. Should this be bled out, or re-mounted? It goes from there to the Mikuni pump, and then loops over the top of the carb horn and back down. I have not run full throttle yet, and don't know what it will do in an attitude change. Seems to run alright on the ground.

   

                                              Bill Sullivan

                                               FS/KX/447

                                              Windsor Locks, Ct.

 [quote][b]

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Dana

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

Posted: Mon Apr 14, 2008 4:23 pm Post subject: fuel filter

At 07:57 PM 4/14/2008, william sullivan wrote:

 	  Quote: 	
		     Welcome back, John.

On my Firestar, the fuel line comes up to an in line fuel filter (see 

through) that is mounted at about a 45 degree angle. When running, it 

always has a large air bubble in it. Should this be bled out, or re-mounted?


	


There's always air in the top of my fuel filter.  It doesn't seem to do any 

harm.  As long as there are no bubbles moving through the fuel line to the 

carburetor at full throttle, you should be fine.



-Dana



--

  There is always a law against doing anything interesting.

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John Hauck

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

Posted: Mon Apr 14, 2008 4:36 pm Post subject: fuel filter

Thanks Bill S:

  

 That seems to be the norm.  Mine always did  that on the Kolbs, Onan Generators, tractors, and lawn mowers.

  

 john h

 mkIII

 titus, alabama

 [quote]    On my Firestar, the fuel line comes up to    an in line fuel filter (see through) that is mounted at about a 45 degree    angle. When running, it always has a large air bubble in it.                                                   Bill Sullivan

                                                   

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

williamtsullivan(at)att.n
Guest

Posted: Mon Apr 14, 2008 5:17 pm Post subject: fuel filter

Dana- I saw a lot of agitation in the filter, but didn't get close enough to look at the line to the carb. It's green, and I saw the word "urethane" on it. I'll put a box in front of the wing so I can see it.

    The good news is that my hand cut prop extension tracked true, with no vibration. it was cut with a hack saw, then I ground the high spots off with a 4" hand grinder. I then put some coarse sandpaper on flat concrete and rubbed the part on it while rotating. My vernier says it is true to as close as I can read it, and the prop blades track absolutely the same. Not bad for hand work. I wish I had a lathe.

    I bought 2 plastic wheel chocks from the auto parts store for $6.44. I drilled them for a rope, so I can pull them out from the seat.

   

                                                   Bill Sullivan

                                                  FS/KX/447

                                                  Windsor Locks, Ct.

 [quote][b]

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ElleryWeld(at)aol.com
Guest

Posted: Mon Apr 14, 2008 5:58 pm Post subject: fuel filter

Bill I have a lathe I will sell you  a bit big 24  inch Chuck for Kolb projects but it works great until I sell it and buy a  smaller one 

  

 Ellery in Maine 

 do not archive

  

  In a message dated 4/14/2008 9:18:16 P.M. Eastern Daylight Time,  williamtsullivan(at)att.net writes:

  	  Quote: 	
		       Dana- I saw a lot of agitation in the filter, but didn't get close    enough to look at the line to the carb. It's green, and I saw the word    "urethane" on it. I'll put a box in front of the wing so I can see it.

     The good news is that my hand cut prop extension tracked true,    with no vibration. it was cut with a hack saw, then I ground the high spots    off with a 4" hand grinder. I then put some coarse sandpaper on flat concrete    and rubbed the part on it while rotating. My vernier says it is true to as    close as I can read it, and the prop blades track absolutely the same. Not bad    for hand work. I wish I had a lathe.

     I bought 2 plastic wheel chocks from the auto parts store for    $6.44. I drilled them for a rope, so I can pull them out from the seat.

    

                                                      Bill Sullivan

                                                      FS/KX/447

                                                      Windsor Locks, Ct.

 	  Quote: 	
		  



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Dana

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

Posted: Mon Apr 14, 2008 6:05 pm Post subject: fuel filter

At 09:15 PM 4/14/2008, william sullivan wrote:

 	  Quote: 	
		     Dana- I saw a lot of agitation in the filter, but didn't get close 

 enough to look at the line to the carb. It's green, and I saw the word 

 "urethane" on it. I'll put a box in front of the wing so I can see it.


	


Usually the urethane tubing is blue, and turns green when it gets old.  If 

yours is green and not transparent enough to see through, you might want to 

replace it.  Usually you'll see a bunch of bubbles at first as most of the 

air is pulled out of the filter, but they disappear and some air is still 

there.



-Dana

--

  When only cops have guns, it's called a police state.

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Dana

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

Posted: Tue Apr 22, 2008 2:48 am Post subject: fuel filter

Somewhere (I'm not sure where) there was a discussion of the Purolator 

glass tube fuel filters and a mention that they should be safety wired... 

but I'm not clear how.  Does anybody have details?



-Dana

--

  It feels great to wake up and not know what day it is, doesn't it?

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John Hauck

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

Posted: Tue Apr 22, 2008 3:15 am Post subject: fuel filter

> Somewhere (I'm not sure where) there was a discussion of the Purolator

 	  Quote: 	
		   glass tube fuel filters and a mention that they should be safety wired... 

 but I'm not clear how.  Does anybody have details?



 -Dana


	




Dana:



I have used the same Purolator fuel filter on my US, FS, and MKIII.



Never used safety wire on it.  However, after the first glass cylinder 

cracked the first night it was on the US, allowing all the fuel to leak out 

of the bottom tank, I replaced the glass cylinder with a piece of .058 

aluminum tubing of the appropriate size.



I like this filter because I can change elements in the field, easy to carry 

spares, or as a last resort, clean a dirty element well enough to get me to 

a place where I can obtain some new ones.



john h

mkIII

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

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