X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 19 Jun 2011 11:30:41 -0400 Message-ID: X-Original-Return-Path: Received: from carbinge.com ([69.5.27.218] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with SMTP id 5024993 for lml@lancaironline.net; Sun, 19 Jun 2011 01:48:33 -0400 Received-SPF: none receiver=logan.com; client-ip=69.5.27.218; envelope-from=jbarrett@carbinge.com Received: (qmail 31167 invoked from network); 19 Jun 2011 05:47:57 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; h=X-Originating-IP:Reply-To:From:To:References:In-Reply-To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:thread-index:Content-Language; s=default; d=carbinge.com; b=NMndXzrDYmXEMCupQYq90bME85HBfIZnBdjsjE/Z/Mm+s8uuwvoT/YYexvRvFCNV9XN8kZG5c4aFa4M2VZ+PrVUMvMHWvJrCG115eSmvEM6AKt7yxNKDpMYoJWDLl3xOfu2GKeyXdVdQUPwkBoxesYKBo2wK8cpC2+O4KlNyP/g=; X-Originating-IP: [66.235.58.63] Reply-To: From: "John Barrett" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: Door Seal on the IV-P X-Original-Date: Sat, 18 Jun 2011 22:47:50 -0700 X-Original-Message-ID: <02c701cc2e44$6dbb3160$49319420$@com> MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_NextPart_000_02C8_01CC2E09.C15C5960" X-Mailer: Microsoft Office Outlook 12.0 thread-index: AcwuGFP77ORRINYMTKqs4sM/md9/mAAK0KEA Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_02C8_01CC2E09.C15C5960 Content-Type: multipart/alternative; boundary="----=_NextPart_001_02C9_01CC2E09.C15C5960" ------=_NextPart_001_02C9_01CC2E09.C15C5960 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Bob, =20 I think the response from Mr. Rickard may have originated from this = posting in 2010. I have a pinhole leak in my door seal =E2=80=93 never = flown yet - I hope to repair it next weekend using the advice given = below by Mr. Heizer. Good luck with yours. By the way, the RTV is = about $30 plus shipping from Aircraft Spruce =E2=80=93 smallest quantity = available. Maybe you=E2=80=99d like to hold off until I=E2=80=99m done = and I=E2=80=99ll ship the stuff to you after I=E2=80=99m sure = I=E2=80=99ve got it fixed. Not too sure what the shelf life is for the = stuff but don=E2=80=99t think it would be good to keep it around for = years so might be better to pass it on. =20 John Barrett =20 From: Isaac Heizer Sender: Subject: Re: Lancair 4 doorseal Date: Mon, 15 Nov 2010 21:20:57 -0500 To: lml@lancaironline.net = Message Header = Undecoded Message The door seal on my ES-P has sprouted several pinhole leaks in the = region where the two ends of the tubing are joined together. I = contacted the manufacturer, and was told the seal is made from layers of = dacron and silicon. This repair procedure is my adaptation of what he = told me about fixing leaks Lightly sand around the area of the leak Clean area with acetone Poke some rtv silicone into the pinhole. I've found that a toothpick = works well. I've been using DOW 3145 adhesive/sealant. Let the rtv fully cure Inflate the doorseal with the door open, keep inflated for the following = steps Spread a small amount of rtv around the area of the repair, and press a = small patch of peelply into the rtv Spread a bit more rtv over the top of the peelply to seal the peelply = and its edges. An ice cube works well to smooth out the rtv & peelply = combo Keep the seal inflated while the silicone dries The initial poking of the rtv into the pinhole fixes the leak. The = application of peelply keeps the inflation/deflation cycles from = reopening the pinhole. I've repaired numerous pinhole leaks in my plane's seal; these repairs = have lasted so far for 200 flying hours...no pinhole has reopened yet. -isaac ES-P N7842K =20 =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Bob Rickard Sent: Saturday, June 18, 2011 5:32 PM To: lml@lancaironline.net Subject: [LML] Re: Door Seal on the IV-P =20 Bob =20 I had this same issue on mine. Jeff taught me how to get a bit of clear = silicone in the hole with a toothpick. It works for a month or 2, then = it fails and you repeat. Painful when you are at 210! Anyway I put up = with it for a while and then got a new one installed by the RDD boys in = Redmond. =20 =20 Bob R On Jun 18, 2011, at 6:15 AM, Robert R Pastusek = wrote: Gentlemen, =20 I just completed the third condition inspection on N437RP at 680 hours = TT. The airplane is in excellent condition; I found no cracks or = structural problems at all, but could use some help with two issues. =20 If anyone has a breakdown drawing of the main gear actuator for the = IV/IV-P, I=E2=80=99d really like to have a copy. My right main gear = actuator has developed a small hydraulic leak around the downlock pin = that sticks out of the top of the actuator base. I constructed the = airplane with a removable top to the wheelwell, so I can stand up in the = wheelwell and access the rear of this actuator, but the space is tight. = I suspect the downlock pin is held down by a rather strong spring, so = removing the circlip that retains the assembly without a clamp or tool = would probably result in not being able to reinstall it. If you have any = experience with servicing this seal, or removing the whole actuator, = I=E2=80=99d appreciate any advice. =20 Second problem: I have a small pin hole in the = =E2=80=9Csidewall=E2=80=9D of my door pressure seal. It=E2=80=99s so = small that the seal will retain pressure for a short period, causing the = pressurization pump to cycle on every few seconds. I would like to hear = from anyone that=E2=80=99s tried to patch such a hole. =20 Many thanks in advance, Bob Pastusek 757-286-4802 cell =20 _____ =20 No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1382 / Virus Database: 1513/3711 - Release Date: 06/18/11 ------=_NextPart_001_02C9_01CC2E09.C15C5960 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Hi Bob,

 

I think the response from Mr. Rickard may have originated from this = posting in 2010.=C2=A0 I have a pinhole leak in my door seal =E2=80=93 = never flown yet - I hope to repair it next weekend using the advice = given below by Mr. Heizer.=C2=A0 Good luck with yours.=C2=A0 By the way, = the RTV is about $30 plus shipping from Aircraft Spruce =E2=80=93 = smallest quantity available.=C2=A0 Maybe you=E2=80=99d like to hold off = until I=E2=80=99m done and I=E2=80=99ll ship the stuff to you after = I=E2=80=99m sure I=E2=80=99ve got it fixed.=C2=A0 Not too sure what the = shelf life is for the stuff but don=E2=80=99t think it would be good to = keep it around for years so might be better to pass it = on.

 

John Barrett

 

From:

Isaac = Heizer = <ijheizer@comcast.net>

Sender:=

<marv@lan= caironline.net>

Subject:

Re: Lancair = 4 doorseal

Date:

Mon, 15 Nov = 2010 21:20:57 -0500

To:

lml@lancairo= nline.net

3D"Message

3D"Undecoded<= /span>

The door = seal on my ES-P has sprouted several pinhole leaks in the region where = the two ends of the tubing are joined together.  I contacted the = manufacturer, and was told the seal is made from layers of dacron and = silicon.  This repair procedure is my adaptation of what he told me = about fixing leaks

Lightly sand around the area of the = leak
Clean area with acetone
Poke some rtv silicone into the = pinhole.  I've found that a toothpick works well.  I've been = using DOW 3145 adhesive/sealant.
Let the rtv fully cure
Inflate = the doorseal with the door open, keep inflated for the following = steps
Spread a small amount of rtv around the area of the repair, and = press a small patch of peelply into the rtv
Spread a bit more rtv = over the top of the peelply to seal the peelply and its edges.  An = ice cube works well to smooth out the rtv & peelply combo
Keep = the seal inflated while the silicone dries

The initial poking of = the rtv into the pinhole fixes the leak.  The application of = peelply keeps the inflation/deflation cycles from reopening the = pinhole.

I've repaired numerous pinhole leaks in my plane's seal; = these repairs have lasted so far for 200 flying hours...no pinhole has = reopened yet.

-isaac
ES-P = N7842K

 

 

From:= = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Bob Rickard
Sent: Saturday, June 18, 2011 5:32 = PM
To: lml@lancaironline.net
Subject: [LML] Re: Door = Seal on the IV-P

 

Bob

 

I = had this same issue on mine.  Jeff taught me how to get a bit of = clear silicone in the hole with a toothpick.  It works for a month = or 2, then it fails and you repeat.  Painful when you are at 210! =   Anyway I put up with it for a while and then got a new one = installed by the RDD boys in Redmond.  

 

Bob R


On Jun 18, 2011, at = 6:15 AM, Robert R Pastusek <rpastusek@htii.com> = wrote:

Gentlemen,

 

I just completed the third condition inspection on N437RP at 680 = hours TT. The airplane is in excellent condition; I found no cracks or = structural problems at all, but could use some help with two = issues.

 

If anyone has a breakdown drawing of the main gear actuator for the = IV/IV-P, I=E2=80=99d really like to have a copy. My right main gear = actuator has developed a small hydraulic leak around the downlock pin that sticks out of the top of the = actuator base. I constructed the airplane with a removable top to the = wheelwell, so I can stand up in the wheelwell and access the rear of this actuator, = but the space is tight. I suspect the downlock pin is held down by a rather strong = spring, so removing the circlip that retains = the assembly without a clamp or tool would probably result in not being = able to reinstall it. If you have any experience with servicing this = seal, or removing the whole actuator, I=E2=80=99d appreciate any = advice.

 

Second problem: I have a small pin hole in=C2=A0 the = =E2=80=9Csidewall=E2=80=9D of my door pressure seal. It=E2=80=99s so = small that the seal will retain pressure for a short period, causing the = pressurization pump to cycle on every few seconds. I would like to hear = from anyone that=E2=80=99s=C2=A0 tried to patch such a = hole.

 

Many thanks in advance,


Bob Pastusek

757-286-4802 cell

 

No virus found in this = message.
Checked by AVG - www.avg.com
Version: 10.0.1382 / = Virus Database: 1513/3711 - Release Date: = 06/18/11

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