X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA07.emeryville.ca.mail.comcast.net ([76.96.30.64] verified) by logan.com (CommuniGate Pro SMTP 5.3c2) with ESMTP id 3973740 for flyrotary@lancaironline.net; Thu, 12 Nov 2009 13:46:03 -0500 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.64; envelope-from=wschertz@comcast.net Received: from OMTA23.emeryville.ca.mail.comcast.net ([76.96.30.90]) by QMTA07.emeryville.ca.mail.comcast.net with comcast id 4JHC1d0041wfjNsA7JlVwU; Thu, 12 Nov 2009 18:45:29 +0000 Received: from sz0070.ev.mail.comcast.net ([76.96.26.124]) by OMTA23.emeryville.ca.mail.comcast.net with comcast id 4JuK1d0062gfN2s8jJuKoe; Thu, 12 Nov 2009 18:54:19 +0000 Date: Thu, 12 Nov 2009 18:45:28 +0000 (UTC) From: wschertz@comcast.net To: Rotary motors in aircraft Message-ID: <1875127607.1969121258051528965.JavaMail.root@sz0070a.emeryville.ca.mail.comcast.net> In-Reply-To: Subject: Re: [FlyRotary] Re: thin washer?? [FlyRotary] Leaky Water Pump Bolt MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_101097_349769268.1258051528964" X-Originating-IP: [71.57.77.95] X-Mailer: Zimbra 5.0.18_GA_3076.RHEL5_64 (ZimbraWebClient - IE7 (Win)/5.0.18_GA_3076.RHEL5_64) ------=_Part_101097_349769268.1258051528964 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable supplement=20 Bill Schertz=20 ----- Original Message -----=20 From: "Scott" =20 To: "Rotary motors in aircraft" =20 Sent: Thursday, November 12, 2009 12:19:24 PM GMT -06:00 US/Canada Central= =20 Subject: [FlyRotary] Re: thin washer?? =C2=A0[FlyRotary] Leaky Water Pump B= olt=20 I used blue etc silicone gasket( permatec 6b) to coat the oem gaskets then = installed.=20 Would ultra gray be used in place of the oem gasket or a supplement like th= e blue rtv?=20 On Nov 12, 2009, at 12:45 PM, wschertz@comcast.net wrote:=20 Did you use some 'ultra grey' gasket maker also?=20 Bill Schertz=20 ----- Original Message -----=20 From: "Ed Anderson" < eanderson@carolina.rr.com >=20 To: "Rotary motors in aircraft" < flyrotary@lancaironline.net >=20 Sent: Thursday, November 12, 2009 9:53:23 AM GMT -06:00 US/Canada Central= =20 Subject: [FlyRotary] thin washer?? =C2=A0[FlyRotary] Leaky Water Pump Bolt= =20 Scott, can=E2=80=99t be certain about your year model, but some of the olde= r models water pump housing required that you install a =C2=A0=C2=A0small t= hin gasket/washer =C2=A0=C2=A0around one of the long bolts that the water p= ump gasket did not surround.=20 Apparently if you did not install this washer, the pressure on the housing = from tightening the nut on that bolt would cause the housing to warp slight= ly and result in leaks.=20 Unfortunately I can=E2=80=99t remember exactly which bolt it was =E2=80=93 = except it was one of the studs that stayed in the block when you remove the= pump and the standard water pump gasket did not go around =E2=80=93 presum= ably if you are not using a gasket (I use silicon sealant) it shouldn=E2=80= =99t matter.=C2=A0=20 That=E2=80=99s all I can think of for you to check.=20 Ed=20 Ed Anderson=20 Rv-6A N494BW Rotary Powered=20 Matthews, NC=20 eanderson@carolina.rr.com=20 http://www.andersonee.com=20 http://www.dmack.net/mazda/index.html=20 http://www.flyrotary.com/=20 http://members.cox.net/rogersda/rotary/configs.htm#N494BW=20 http://www.rotaryaviation.com/Rotorhead%20Truth.htm=20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Scott=20 Sent: Thursday, November 12, 2009 9:52 AM=20 To: Rotary motors in aircraft=20 Subject: [FlyRotary] Leaky Water Pump Bolt=20 I started filling the engine with coolant and as soon as the level reached = bolt #3 it started to weep. =C2=A0Pulling the pump off the housing gave no = indication of why the leakage. =C2=A0Per the haynes manual the bolts were t= ightened in the specified sequence and to 20 ft lbs. =C2=A0I did tighten to= 25ft lbs, but it still continued to leak.=C2=A0 Any guidance on how much t= orque the threads on aluminum pump housing can take?=20 The drip rate is felt considerable as there was no pressure(=C2=A0 http://w= ww.youtube.com/watch?v=3D2ImqWkP8sDw ) other than 1/4" of standing fluid.= =C2=A0=20 Any thoughts?=C2=A0=20 I am getting a new gasket and will try again of course.=20 =20 IMG_0635.JPG=20 =20 IMG_0636.JPG=20 =20 IMG_0637.JPG=20 __________ Information from ESET NOD32 Antivirus, version of virus signatur= e database 3267 (20080714) __________=20 The message was checked by ESET NOD32 Antivirus.=20 http://www.eset.com=20 --=20 Homepage: =C2=A0 http://www.flyrotary.com/=20 Archive and UnSub: =C2=A0=C2=A0 http://mail.lancaironline.net:81/lists/flyr= otary/List.html=20 ------=_Part_101097_349769268.1258051528964 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <= div style=3D'font-family: Arial; font-size: 12pt; color: #000000'>

supplement

 

Bill Schertz
----- Original Message -----
From: "Scott" <squigg= les@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancairo= nline.net>
Sent: Thursday, November 12, 2009 12:19:24 PM GMT -06:00 U= S/Canada Central
Subject: [FlyRotary] Re: thin washer??  [FlyRotary= ] Leaky Water Pump Bolt

I used blue etc silicone gasket( permatec 6b) to coat the oem gaskets = then installed.

Would ultra gray be used in place of the oem gasket or a supplement li= ke the blue rtv?



On Nov 12, 2009, at 12:45 PM, wschertz@comcast.net wrote:

Did you use some 'ultra grey' gasket maker also?

Bill Schertz
----- Original Message -----
From: "Ed Anderson" <= eanderson@caro= lina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net<= /A>>
Sent: Thursday, November 12, 2009 9:53:23 AM GMT -06:00 US/Canad= a Central
Subject: [FlyRotary] thin washer??  [FlyRotary] Leaky Wat= er Pump Bolt

Scott, can=E2=80=99t = be certain about your year model, but some of the older models water pump h= ousing required that you install a   small thin gasket/washer &nb= sp; around one of the long bolts that the water pump gasket did not su= rround.

 <= /P>

Apparently if you did= not install this washer, the pressure on the housing from tightening the n= ut on that bolt would cause the housing to warp slightly and result in leak= s.

 <= /P>

Unfortunately I can= =E2=80=99t remember exactly which bolt it was =E2=80=93 except it was one o= f the studs that stayed in the block when you remove the pump and the stand= ard water pump gasket did not go around =E2=80=93 presumably if you are not= using a gasket (I use silicon sealant) it shouldn=E2=80=99t matter.  =

 <= /P>

That=E2=80=99s all I = can think of for you to check.

 <= /P>

Ed

 <= /P>

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Scott
Sent: Thursday, November 12, 2009 9:52= AM
To: Rotary motors in= aircraft
Subject: [FlyR= otary] Leaky Water Pump Bolt

 

I started filling the engine with coolant and as soon as = the level reached bolt #3 it started to weep.  Pulling the pump off th= e housing gave no indication of why the leakage.  Per the haynes manua= l the bolts were tightened in the specified sequence and to 20 ft lbs. &nbs= p;I did tighten to 25ft lbs, but it still continued to leak.  Any guid= ance on how much torque the threads on aluminum pump housing can take?
<= BR>The drip rate is felt considerable as there was no pressure(  http://= www.youtube.com/watch?v=3D2ImqWkP8sDw ) other than 1/4" of standing flu= id. 

Any thoughts? 
I am getting a new gasket and wil= l try again of course.

 

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The message was checked by ESET NOD32 Antivirus.<= BR>
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