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Old 10-02-2017, 11:24 PM   #51
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Originally Posted by planebuilder View Post
I would like to see pics of what exactly leaked oil and why.It may show others what to watch out for.
I'm pretty sure it's the same fitting on the oil cooler line that leaked (albeit not as bad) before, even though I've been checking it (and checked again, just before this flight when I had the cowl off for other reasons). At any rate the jam nut on the 45 elbow screwed into the case was loose when I opened it up afterwards, though it's not impossible that inertia forces in the impact made the hose loosen and the cause this time was something else:



I'll know for sure when I get the plane home and run the engine again (to change the oil and preserve the engine for the anticipated downtime). But if I keep the plane I'll drill that nut for safety wire.

At this point I'm not sure what I'm going to do with it. The disgust, wanting to get rid of it and move on, is fading, and every time I look at it I start thinking, "it's not so bad." The plane was somewhat rough anyway, and would have needed (or deserved) restoration in a few years anyway. I'm going to bring it home and buy a canvas garage to put it in, and maybe start slowly chipping away at it. If somebody wants to buy the project in the meanwhile, great, if not maybe in a few years I'll be flying it again.


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Old 10-02-2017, 11:37 PM   #52
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Isn't that a pipe thread fitting?


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Old 10-02-2017, 11:42 PM   #53
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Looks like it.
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Old 10-02-2017, 11:48 PM   #54
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That indeed looks like a straight thread fitting into a pipe thread port in the accessory case. Does not work. Requires an AN823 fitting. The fitting shown is for mechanical fuel pumps that have straight thread ports. Will always fail when installed in that location.

Best of luck,

Wes
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Old 10-03-2017, 12:26 AM   #55
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Thanks for posting the pics. Not trying to be negative towards you, but I agree, that is not the correct fitting for that application. The take away is, none of us are good enough to catch everything. Ask knowledgeable friends to look over our planes with a critical eye, maybe even when at fly in's etc., and we can't be sensitive to criticism, it may save our planes, or lives.
Time, I hope will make rebuilding acceptable to you, and now you can change that fitting and fly with confidence. It's way better than not knowing what caused it.
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Old 10-03-2017, 10:23 AM   #56
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Looks like the jam nut was used to lock the elbow pointing in the right direction, with what appears to be a metal crush washer to seal it. If it's the wrong fitting (not disputing that), one wonders how it lasted 400 hours and only let go now.
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Old 10-03-2017, 11:40 AM   #57
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Sometimes it takes a while for an incorrect application to surface but it usually will. in this case it depends on exactly how tight it was driven into the female pipe hole and then exactly how much torque was applied to the jam nut. The irony is that greater torque on the jam nut might actually loosen the straight fitting in a pipe threaded hole. It gave you a hint. ( BTW, the only reason I might have caught it myself is that, I've been there/done that!)

We are given great latitude in the maintenance of E-AB (maybe too much). I would suggest taking special caution with aircraft whose only inspection has been done by the builder w/repairman certificate. One can build an airplane and install a certified engine and know absolutely nothing about engines. I could go on....... (I have two repairman certificates but hopefully know my limits)

I've also flown behind several O290G's. My present engine(Spezio) was assembled by an A&P with a O320 crankshaft. It should have been right but my IA found issues upon inspection when it was on the EAA Bipe. I've seen other conversions that were obviously dangerous.

In this case I agree it's likely the wrong fitting? Also easy to assume if ok for many hours it will continue to be ok. When the correction is difficult it's even easier to assume it will keep working especially if we might not have the tools. Taking a mag. off and replacing is a daunting task if you have never been there before but that appears to be necessary in this case.

I believe that even a certified mechanic needs supervision for a task he hasn't done before. It would make sense that should apply to the owner/builder of an E-AB but it doesn't.

Like they say,

"One of the best things about an E-AB aircraft is that anyone can work on it."

"One of the worst things about an E-AB aircraft is that anyone can work on it"

Always good to get another set of eyes.

Jack
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Old 10-03-2017, 02:55 PM   #58
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Default My Starduster Forced Landing

I have both actually. I'm shocked at how few planes have/carry any fire extinguishers. Small halon bottle might not help much, but COULD be better than nothing! Like a parachute/life vest/ seat belt.
If you don't carry it, you CAN'T use it!
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Old 10-03-2017, 04:14 PM   #59
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If you are in a Bonanza, your normally not going to be wearing a parachute. A Fire extinguisher can give you some time to sort things out. Its not about saving the plane if it is that dyer, but you do need time. A chute, fire extinguisher, clothing is all about time.
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Old 10-03-2017, 05:18 PM   #60
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Yep, I carry a small Halon extinguisher in the Champ. There's zero chance I could push the door open in flight (no removable hinge pins like on later models), so a parachute wouldn't do me any good.
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Old 10-03-2017, 05:21 PM   #61
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Don't be surprised ian, I made a skydive out of a Cessna 150 and a 172 both times pushing the doors open and sliding past........
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Old 10-03-2017, 05:55 PM   #62
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Yep I've jumped out of a C-120 with the door on, twice. So, with a little motivation that door probably won't slow you up much.
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Old 10-03-2017, 05:57 PM   #63
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Of course it's not about saving a bit of future scrap metal. It's about saving occupants. That sort of makes my point I think.

A fuel tank leak all over one of my passengers, that covers them with gas..

I tell them.
If there is a fire and we're above 600 feet. I'll pass you the Halon on your right, spray yourself off and get the hell out, I will be closely behind you.
If we are below 600 feet, spray yourself and then anywhere else there is fire.



In that time we will be somewhere on the ground, immediately.


If you don't got it, you can't use it. It's worth the 2 pounds and it's one the floor out of the way.
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Old 10-03-2017, 06:08 PM   #64
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Quote:
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Yep I've jumped out of a C-120 with the door on, twice. So, with a little motivation that door probably won't slow you up much.
True, with sufficient motivation I could probably get myself out the door. It wouldn't do me any good, though, since I don't have a parachute.
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Old 10-03-2017, 06:27 PM   #65
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Quote:
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Yep I've jumped out of a C-120 with the door on, twice. So, with a little motivation that door probably won't slow you up much.
Twice out of a Piper Tomahawk in hard slip.
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Old 10-03-2017, 06:59 PM   #66
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Fear is a great motivator.
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Old 10-03-2017, 07:13 PM   #67
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People who jump for fun don't count. Y'all are just looking for an excuse to jump.
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Old 10-03-2017, 11:29 PM   #68
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Ian, if you want to start having real fun with the Champ, hinge the door on the top and fly with it open!
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Old 10-04-2017, 05:06 PM   #69
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I'm late replying on the fittingsbut. My 2C. The pipe threads common are the straight and tapered as stated. You can find is in AC43-13 and also in ap mechanics handbook I believe.before you use or if you have a question about any hardware on a airplane look it up. There are hundreds of applications of different hardware they have been designed for some general apps and some very specific. You wouldn't believe the things people use on repairs even on certified aircraft.
I am a A&P-IA living in the northeast in the late fall until spring ( northern NY) and would be happy to inspect anybody's homebuilt for free. This is in the interest of safety and the general welfare of our community. I'm new to biplanes but have been working for a long time as a A&P, so I don't have every ans. But will research what I don't .
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Old 10-04-2017, 06:07 PM   #70
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Saber, do you really gain much weather wise in northern NY vs. Alaska for the winter?
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Old 10-04-2017, 06:36 PM   #71
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Im 100m north of that near Montreal and we usually only have to stop flying in Jan/Feb.
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Old 10-04-2017, 07:13 PM   #72
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Y'all are built from heartier stock than some of us southern folk.
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Old 10-04-2017, 10:02 PM   #73
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It's the Grandkids that bring us to NY. The wx is worse in Ny many times.
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Old 10-05-2017, 12:00 AM   #74
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Quote:
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It's the Grandkids that bring us to NY. The wx is worse in Ny many times.
But at least it isn't dark at noon in the winter...
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Old 10-05-2017, 12:59 PM   #75
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Saber said,

"...You wouldn't believe the things people use on repairs even on certified aircraft....."


Yes I would


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