X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 19 Jun 2011 19:56:11 -0400 Message-ID: X-Original-Return-Path: Received: from fmailhost04.isp.att.net ([204.127.217.104] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5025390 for lml@lancaironline.net; Sun, 19 Jun 2011 16:23:07 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.104; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-106-31.mco.bellsouth.net[98.85.106.31]) by isp.att.net (frfwmhc04) with SMTP id <20110619202230H0400irimse>; Sun, 19 Jun 2011 20:22:30 +0000 X-Originating-IP: [98.85.106.31] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: Door Seal on the IV-P X-Original-Date: Sun, 19 Jun 2011 16:22:34 -0400 X-Original-Message-ID: <3CF054300E324E88A8DFBFCBA5C1D1E0@Desktop> MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_NextPart_000_0054_01CC2E9D.18F53CD0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcwulemJLL+QCsJJTv2fecnSexIuvAAKGnoA X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0054_01CC2E9D.18F53CD0 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0055_01CC2E9D.18F53CD0" ------=_NextPart_001_0055_01CC2E9D.18F53CD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit RTV is about $4-5 per tube at WallyWorld, Lowes, Home Depot, etc.why buy $30 worth when you need to wet the end of a toothpick?? Bill B _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John Barrett Sent: Sunday, June 19, 2011 11:31 AM To: lml@lancaironline.net Subject: [LML] Re: Door Seal on the IV-P Hi Bob, I think the response from Mr. Rickard may have originated from this posting in 2010. I have a pinhole leak in my door seal - 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 - smallest quantity available. Maybe you'd like to hold off until I'm done and I'll ship the stuff to you after I'm sure I've got it fixed. Not too sure what the shelf life is for the stuff but don't think it would be good to keep it around for years so might be better to pass it on. John Barrett 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 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 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'd 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'd appreciate any advice. Second problem: I have a small pin hole in the "sidewall" of my door pressure seal. It's 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's 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 ------=_NextPart_001_0055_01CC2E9D.18F53CD0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

RTV is about $4-5 per tube at = WallyWorld, Lowes, Home Depot, etc…why buy $30 worth when you need to wet the = end of a toothpick??

 

Bill B

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of John Barrett
Sent: Sunday, June 19, = 2011 11:31 AM
To: = lml@lancaironline.net
Subject: [LML] Re: Door = Seal on the IV-P

 

Hi = Bob,

 <= /o:p>

I think the = response from Mr. Rickard may have originated from this posting in 2010.  I = have a pinhole leak in my door seal – 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 = – smallest quantity available.  Maybe you’d like to hold off until = I’m done and I’ll ship the stuff to you after I’m sure I’ve got it = fixed.  Not too sure what the shelf life is for the stuff but don’t think it would be good = to keep it around for years so might be better to pass it = on.

 <= /o:p>

John = Barrett

 <= /o:p>

From:

Isaac Heizer = <ijheizer@comcast.net>

Sender:

<marv@lancaironline.net>

Subject:

Re: Lancair 4 = doorseal

Date:

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

To:

lml@lancaironline.net

3D"Message

3D"Undecoded

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

 <= /o:p>

 <= /o:p>

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’d 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’d appreciate any = advice.

 

Second problem: I have a small pin hole in  = the “sidewall” of my door pressure seal. It’s 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’s  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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