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  <channel>
    <title>Maintenance</title>
    <link>http://forums.piperowner.org/list/4</link>
    <description><![CDATA[Nuts and bolts of airframes and engines.  
Open to Public to Read | Open to Public to Post ]]></description>
    <language>EN</language>
    <pubDate>Sun, 11 May 2008 10:55:00 -0500</pubDate>
    <lastBuildDate>Sun, 11 May 2008 10:55:00 -0500</lastBuildDate>
    <category>Maintenance</category>
    <generator>Phorum 5.1.25</generator>
    <ttl>60</ttl>
    <item>
      <title>Re: Wing/fuel tank seam sealant</title>
      <link>http://forums.piperowner.org/read/4/100067/100071#msg-100071</link>
      <author>Bob</author>
      <description><![CDATA[None.  The wing tanks are not sealed to the wing.  That just helps trap water. And sometimes it makes it harder to pull the tanks.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/100067/100071#msg-100071</guid>
      <pubDate>Sun, 11 May 2008 10:55:00 -0500</pubDate>
    </item>
    <item>
      <title>Re: Scratched Windshield</title>
      <link>http://forums.piperowner.org/read/4/99531/100068#msg-100068</link>
      <author>Moe</author>
      <description><![CDATA[Try using Micro Mesh. You can buy this in a kit. It will remove small or deep scratches. The repair of deep scratches will have to be spread out over a larger area to prevent distortion. Also, you have to make sure you don't go below minimum windshield thickness.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99531/100068#msg-100068</guid>
      <pubDate>Sun, 11 May 2008 08:36:50 -0500</pubDate>
    </item>
    <item>
      <title>Wing/fuel tank seam sealant</title>
      <link>http://forums.piperowner.org/read/4/100067/100067#msg-100067</link>
      <author>Rich</author>
      <description><![CDATA[SB1006 was just completed with both fuel tanks removed. The old sealant was removed during clean up on the exterior of the fuel tanks. Once they are re-installed what is the recommended sealant that would be used around the perimeter of the fuel tanks once in the wings??<br />
<br />
thanks much,]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/100067/100067#msg-100067</guid>
      <pubDate>Sun, 11 May 2008 08:32:24 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/100060#msg-100060</link>
      <author>flyguydon</author>
      <description><![CDATA[Cherokees and some retracts don't have horns.  I think on the retracts it is so that you are not confused with the gear horn.<br />
<br />
On Cherokees, I have heard of folks adding the horns.  It is easy and the horns are cheap.<br />
<br />
BUT... if you put 4 folks in your Cherokee in August... it is easier to see a flicker of the light on rotation than explaining that the horn is nothing to worry about (to your passengers).  :)]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/100060#msg-100060</guid>
      <pubDate>Sun, 11 May 2008 06:31:01 -0500</pubDate>
    </item>
    <item>
      <title>Re: Solution for a loose fuse holder on a 235</title>
      <link>http://forums.piperowner.org/read/4/99971/100056#msg-100056</link>
      <author>Dave Matlock</author>
      <description><![CDATA[I thought about replacing the old glass fuses with CB's but decided that was best left for a time when I was up to doing all of them at once. getting the 337 approved to swap all of them would be as easy (If not easier) than for a single unit, but the depth of the CB's are different than the 2 different fuse holders in the 235's panel so the buss bar wouldn't connect without some weirdness. It would be nice to get that done though, The 235 even has a couple fuses behind the panel that can't be accessed easily or from the front. Dumb.....]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99971/100056#msg-100056</guid>
      <pubDate>Sun, 11 May 2008 00:32:08 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/100053#msg-100053</link>
      <author>Dave Matlock</author>
      <description><![CDATA[Just out of curiosity, what model do You have? (My lowly Cherokee doesn't have a horn)]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/100053#msg-100053</guid>
      <pubDate>Sat, 10 May 2008 22:25:57 -0500</pubDate>
    </item>
    <item>
      <title>Re: Piper Cub Bungie Cords</title>
      <link>http://forums.piperowner.org/read/4/96496/100042#msg-100042</link>
      <author>JimC</author>
      <description><![CDATA[Mark,<br />
Try<br />
www.SuperCub.org<br />
or<br />
www.j3-cub.com]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/96496/100042#msg-100042</guid>
      <pubDate>Sat, 10 May 2008 19:43:30 -0500</pubDate>
    </item>
    <item>
      <title>Re: Piper Cub Bungie Cords</title>
      <link>http://forums.piperowner.org/read/4/96496/100039#msg-100039</link>
      <author>mark weitkamp</author>
      <description><![CDATA[Can anybody point me toward a reference for interpreting the date code of the bungie cords on a Cub landing gear?  I think the color or pattern of the threads somehow indicates date of manufacture, but I can't find any clues to break the code.<br />
<br />
Thanks for any help.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/96496/100039#msg-100039</guid>
      <pubDate>Sat, 10 May 2008 11:53:17 -0500</pubDate>
    </item>
    <item>
      <title>Re: Geronimos or Aztecs?</title>
      <link>http://forums.piperowner.org/read/4/99137/100035#msg-100035</link>
      <author>Fred Milton</author>
      <description><![CDATA[Hey Bob- <br />
<br />
Thanks for the tip. I'm getting some multi dual in his Geronimo this week. We also found two pretty good Apaches that we'll be looking at next week. I can highly recommend Glenn to anyone needing help with these planes.<br />
<br />
Thanks again!]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99137/100035#msg-100035</guid>
      <pubDate>Sat, 10 May 2008 09:51:04 -0500</pubDate>
    </item>
    <item>
      <title>Re: EGT Probe Thread Size</title>
      <link>http://forums.piperowner.org/read/4/99954/100034#msg-100034</link>
      <author>Dave</author>
      <description><![CDATA[Lycoming cylinders are drilled and tapped for a straight 3/8-24 thread, I'd assumed the other manufactures do the same. The CHT port is located on the bottom side of the cylunder, inboard from the lower spark plug.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99954/100034#msg-100034</guid>
      <pubDate>Sat, 10 May 2008 09:26:30 -0500</pubDate>
    </item>
    <item>
      <title>Re: Question on the Circuit for the Nav Running Lights</title>
      <link>http://forums.piperowner.org/read/4/95928/100029#msg-100029</link>
      <author>Jeff S</author>
      <description><![CDATA[Hey all,<br />
<br />
I want to re-open this inquiry to provide latest details and see if there are any other thoughts. Having checked the L1 wiring connection, the circuit breaker, even tightening the wires at the junction box under the seat, I'm still having intermittent problems with the nav lights.<br />
<br />
Intermittent is the key word. Of course, whenever my A/P looks at it, they're working. But often when I'm doing pre-flight the nav lights just won't come on. Interestingly, they always do seem to come on once everything is fired up and things seems to &quot;warm up&quot; a little bit.<br />
<br />
I don't know if &quot;warming up&quot; has anything to do with this, but that's just my way of saying that after the plane has been operating for awhile they seem to work. And sometimes, they do work on pre-flight as well. Very vexing.<br />
<br />
Could this be indicative of a switch going bad? Maybe some intermittent shorting or rubbing of wires inside the plane? Anybody else have ideas?<br />
<br />
The plane is going in for annual on May 19th so we're definitely going to troubleshoot this some more, but if anyone can point me to likely causes that will be helpful. Thanks!<br />
<br />
J]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/95928/100029#msg-100029</guid>
      <pubDate>Sat, 10 May 2008 07:17:07 -0500</pubDate>
    </item>
    <item>
      <title>Re: Engine TBO versus years since overhaul</title>
      <link>http://forums.piperowner.org/read/4/99661/100027#msg-100027</link>
      <author>datorres</author>
      <description><![CDATA[The one mechanic I have spoken to who claims to understand the reason for the twelve year limit told me that the reason for it is that the rear seal has been known to dry out after twleve years.  He also said two other things:  1) It's easy to replace the seal while the engine is still on the aircraft and 2) If the plane is regularly flown, there is little risk of the seal drying out.<br />
<br />
Corrision is really a limited risk and is more a factor of long term lack of use.  The greater risk over time is related to gaskets drying out and this can be evidenced by large leaks.  I would personaly not worry too much about the twleve year limit if the engine is holding oil well, thereby indicating that there is no evidence of major leaks.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99661/100027#msg-100027</guid>
      <pubDate>Sat, 10 May 2008 00:29:25 -0500</pubDate>
    </item>
    <item>
      <title>Re: Replacing an Arrow landing light</title>
      <link>http://forums.piperowner.org/read/4/99779/100019#msg-100019</link>
      <author>Jim Wells</author>
      <description><![CDATA[I concur with the Q4509 bulb.  I get significantly better life out of them than the 4509.  In fact, I can't remember the last time I replaced one. I fly a '78 Arrow III.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99779/100019#msg-100019</guid>
      <pubDate>Fri, 09 May 2008 18:55:22 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/100018#msg-100018</link>
      <author>flyguydon</author>
      <description><![CDATA[Before I'd go bending or adjusting, check your IAS on a power off stall.  If it agrees with the POH, I would not change a thing.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/100018#msg-100018</guid>
      <pubDate>Fri, 09 May 2008 18:43:11 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/100017#msg-100017</link>
      <author>flyguydon</author>
      <description><![CDATA[I can't even get my Arrow to break power on.  It will hang there by the prop and buffet... the stall may blink...<br />
<br />
Power off I can get a good break and bright stall indication.  My Warrior did not really stall power on either unless you were heavy.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/100017#msg-100017</guid>
      <pubDate>Fri, 09 May 2008 18:41:46 -0500</pubDate>
    </item>
    <item>
      <title>Re: EGT Probe Thread Size</title>
      <link>http://forums.piperowner.org/read/4/99954/100016#msg-100016</link>
      <author>flyguydon</author>
      <description><![CDATA[I think the CHT are 1/8 threads, just like my fuel injectors.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99954/100016#msg-100016</guid>
      <pubDate>Fri, 09 May 2008 18:37:55 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/100005#msg-100005</link>
      <author>Howard</author>
      <description><![CDATA[Thanks, all for the explanations and information.  This was helpful.  I'll discuss w/ my AI when he frees-up a bit (probably june).]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/100005#msg-100005</guid>
      <pubDate>Fri, 09 May 2008 14:16:58 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99997#msg-99997</link>
      <author>MikeGranby</author>
      <description><![CDATA[I agree with that Rich says re adjustment. Re the explanation, what is going on is that as you increase angle of attack, the stangation line (the line along which no airflow occurs) along the leading edge moves downwards and backwards, causing the vane of the detector to be pushed up by a flow that is now going over the top of the wing. Note that the wing doesn't have to stall to create this effect: it's just a function of AoA, so the vane can be adjusted so that warning occurs at any AoA, the correct option being sufficiently before the stall begins. Moving the vane upwards means that the stagnation line will cross the vane at a lower AoA, and therefore further before the stall.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99997#msg-99997</guid>
      <pubDate>Fri, 09 May 2008 12:18:06 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99996#msg-99996</link>
      <author>Howard</author>
      <description><![CDATA[Mike - yes, that's correct.<br />
<br />
- Howard]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99996#msg-99996</guid>
      <pubDate>Fri, 09 May 2008 12:07:10 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99994#msg-99994</link>
      <author>Rick T.</author>
      <description><![CDATA[OK....Guity of not reading everything you posted.<br />
<br />
Yeah, it is probably not the switch contacts.  The switch body should be adjustable within the mount, not by bending the tab, but by sliding the assembly up and down.<br />
<br />
You might consider moving the switch assembly slightly up, so that the tab will see more of the flow separation at stall. When the stall occurs the boundary layer flow reverses and pulls the tab up.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99994#msg-99994</guid>
      <pubDate>Fri, 09 May 2008 11:40:40 -0500</pubDate>
    </item>
    <item>
      <title>Re: EGT Probe Thread Size</title>
      <link>http://forums.piperowner.org/read/4/99954/99993#msg-99993</link>
      <author>SteveG</author>
      <description><![CDATA[Oops - That was a typo!<br />
<br />
I meant CHT.  <br />
<br />
I've seen them in the Spruce catalog but 2 or 3 different sizes listed.  Just thought I'd check here.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99954/99993#msg-99993</guid>
      <pubDate>Fri, 09 May 2008 11:37:21 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99991#msg-99991</link>
      <author>MikeGranby</author>
      <description><![CDATA[So you get a break during a power-on stall, but no horn, right?]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99991#msg-99991</guid>
      <pubDate>Fri, 09 May 2008 11:04:30 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99990#msg-99990</link>
      <author>Howard Norber</author>
      <description><![CDATA[Rick - do you think the contacts are corroded even if it works fine when I physically lift the tab during my pre-flight?<br />
<br />
Thanks<br />
- Howard]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99990#msg-99990</guid>
      <pubDate>Fri, 09 May 2008 10:40:12 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99989#msg-99989</link>
      <author>Rick T.</author>
      <description><![CDATA[Most likely the contacts are corroded at the switch.  If you spray contact cleaner inside the switch while moving the lever back and forth....sometimes that brings them back to life.<br />
<br />
Otherwise you are looking at several hundred dollars for a new switch.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99989#msg-99989</guid>
      <pubDate>Fri, 09 May 2008 10:24:39 -0500</pubDate>
    </item>
    <item>
      <title>Re: Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99987#msg-99987</link>
      <author>Tom</author>
      <description><![CDATA[I would not bend the tab, if you look closely this switch is adjustable via mounting slots. You do not want to take the chance by bending the tab as these switches are VERY expensive....]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99987#msg-99987</guid>
      <pubDate>Fri, 09 May 2008 10:06:10 -0500</pubDate>
    </item>
    <item>
      <title>Stall Horn</title>
      <link>http://forums.piperowner.org/read/4/99984/99984#msg-99984</link>
      <author>Howard</author>
      <description><![CDATA[My electric stall horn doesn't work during power-on stalls.  It does work during my pre-flight (when I physically lift the metal tab, the alarm sounds) and I think (but need to confirm on my next flight) that it still works during power-off stalls, however during a power-on stall, the alarm doesn't sound.<br />
<br />
It seems to me that the metal tab may be bent at an angle where it just isn't 'catching' during pwr-on stalls- and so I wonder whether I should be looking at having an AI bend the tab to be sure the angle is w/in specs - or whether the tab needs to be replaced?<br />
<br />
Any thoughts would be appreciated.<br />
<br />
Thanks.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99984/99984#msg-99984</guid>
      <pubDate>Fri, 09 May 2008 09:48:51 -0500</pubDate>
    </item>
    <item>
      <title>Re: Solution for a loose fuse holder on a 235</title>
      <link>http://forums.piperowner.org/read/4/99971/99981#msg-99981</link>
      <author>JimC</author>
      <description><![CDATA[Replace it with a push-pull circuit breaker.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99971/99981#msg-99981</guid>
      <pubDate>Fri, 09 May 2008 07:46:36 -0500</pubDate>
    </item>
    <item>
      <title>Re: EGT Probe Thread Size</title>
      <link>http://forums.piperowner.org/read/4/99954/99975#msg-99975</link>
      <author>flyguydon</author>
      <description><![CDATA[I'll back Dave up on that one.  CHTs come threaded and also as a ring that goes under the spark plug.  The treaded ones are very standard, so Spruce will know just what you need.<br />
<br />
EGTs get drilled into the exhaust just under the outlet and are held there by a special (hose) clamp and a little gasket.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99954/99975#msg-99975</guid>
      <pubDate>Fri, 09 May 2008 06:39:10 -0500</pubDate>
    </item>
    <item>
      <title>Re: Solution for a loose fuse holder on a 235</title>
      <link>http://forums.piperowner.org/read/4/99971/99973#msg-99973</link>
      <author>Dave Matlock</author>
      <description><![CDATA[Stick a piece of foil in it? Really?? Why would You want to risk the failure and aggrivation over a part as inexpensive as that one? I don't remember how much I paid but I replaced several last year and they were reasonable.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99971/99973#msg-99973</guid>
      <pubDate>Fri, 09 May 2008 04:56:56 -0500</pubDate>
    </item>
    <item>
      <title>Solution for a loose fuse holder on a 235</title>
      <link>http://forums.piperowner.org/read/4/99971/99971#msg-99971</link>
      <author>Av8rdanPim</author>
      <description><![CDATA[I have a 1964 235 and am in the midst of IFR training in it. All is very well except for the turn and a bank indicator's fuse holder is a tiny bit loose, just enough so it flags the TBI once in a while. When this happens, I just push in and twist a little harder and it unflags.<br />
<br />
Trouble is, it can be fine for a flight of two, and then just flags at the worst time. It is an S-Tec TBI connected to an S-Tec 50 a/p, and the other day while under the hood and with the a/p engaged, the damn thing flagged and made the a/p lurch hard left while climbing. No big, I disengaged, unflagged the TBI and flew on to a decent VOR/DME approach.<br />
<br />
Anyone have a trick for fixing this fuse holder, or are new ones the solution? A old timer at the airport said just stick a small wad of foil in there and it will tighten things up.<br />
<br />
Any thoughts...just click my username at left to email me.]]></description>
      <category>Maintenance</category>
      <guid isPermaLink="true">http://forums.piperowner.org/read/4/99971/99971#msg-99971</guid>
      <pubDate>Thu, 08 May 2008 23:38:49 -0500</pubDate>
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