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-----Original Message-----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thu, 2 Nov 2006 6:42 AM
Subject: Re: [COUPERS-TECH] Header Fuel Tank AD 55-22-02, part 2
Harry,
You said,"...maximum level is about 2 inches from the top of the tank...". My return line has a 90 degree turn up from it's entry point at the aft end of the tank, ending only 1/4 to 1/2 inch from the top of the tank! Are you sure about the two inches? That's a really big difference. While my tank is being repaired, I could have this changed also.
Update on my tank which has sloshing compound in it. My mechanic is repairing the leak(s) and pressure testing it. The biggest problem will be getting ALL the sloshing compound removed. He is comtemplating cutting 2 inspection holes to confirm removal and then permanently closing these holes.
Darick Gundy
N94139
-----Original Message-----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; [email protected]
Sent: Thu, 26 Oct 2006 1:24 PM
Subject: Re: [COUPERS-TECH] Header Fuel Tank AD 55-22-02, part 2
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Tandy, John, and the group,
Thanks for the posting of 55-22-02....BUT, I think we are all missing something here.
Tandy speaks of leaking from the header tank cap..overflowing from the header tank, when the maximum level is about 2 inches from the top of the tank...at the level of the return line The return line can be seen , carefully looking from the pilots side into the header tank. The pipe is on the right side of the filler tube, and difficult to see.
This, most likely is due to a restricted overflow line......and/or a result of the fuel pump being replaced and leaving off the restrictor fitting. This results in excess fuel being pumped to the header tank , causing it to overflow, by exceeding the capacity of the return line.
If the return line is not clear, ( and they do get stopped up by varnish in planes that sit long periods, allowing gasoline vapors to evaporate and leave a varnish in the fittings, or possible some sloshing compound..). If so, remove the return line fitting from the rear of the tank, and clean it with a flexible tool..(.A tobacco pipe cleaner works pretty good). Do not use compressed air on the header tank to check..it may rupture..., But, one can carefully blow into the tank (don't inhale), while another is listening at the wing tanks for bubbles....to insure it is clear.
Fly Safe - Have Fun
Harry Francis
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