X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 18 Jul 2010 13:47:24 -0400 Message-ID: X-Original-Return-Path: Received: from smtp101.sbc.mail.gq1.yahoo.com ([67.195.15.60] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with SMTP id 4397387 for lml@lancaironline.net; Sun, 18 Jul 2010 13:15:30 -0400 Received-SPF: neutral receiver=logan.com; client-ip=67.195.15.60; envelope-from=craig@skybolt.net Received: (qmail 29409 invoked from network); 18 Jul 2010 17:14:52 -0000 Received: from Ace (craig@76.208.153.94 with login) by smtp101.sbc.mail.gq1.yahoo.com with SMTP; 18 Jul 2010 10:14:52 -0700 PDT X-Yahoo-SMTP: sYxhbm.swBCvFXZ5XcsZWT3w2320TvMaw69nMUmH X-YMail-OSG: WZR5jfUVM1nmIQK.rH49Jz7deKjVEG9KISW7JzGmbTK.jMO .zsjd1GCzjZw7g6NNDjHKfYauG6Y3Jca_U7e8a_0UkW7YKGy0Hsil07o2FEQ P.0jdyJHgl4wZSEDpgqHGaqBrNXBQxp2JMCfhQeP0H3ShnHdjMQsxwU9GnET hwxv0D1et7iuaF3MDZvGxpbxQuqoWIUnyx_sPJORE5EICJyju4t_iO5PN_ca j_t4hLXS7tJRmc9Upqayi3uqWEFIWQwHni.ZyMB0_3DfG1dgqLdCwpxqPPkn JVC9UwDSlLU6WIctIVnEcnwhlhlZhaA_fthLdi6COG8yIRs0s2cp9ECoYNEg eQhJAuA-- X-Yahoo-Newman-Property: ymail-3 From: "Craig Schulze" X-Original-To: "'Bill Bradburry'" , References: In-Reply-To: Subject: RE: [LML] Re: My airplane is running HOT X-Original-Date: Sun, 18 Jul 2010 10:14:49 -0700 X-Original-Message-ID: <007001cb269c$bae8e550$30baaff0$@net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0071_01CB2662.0E8A0D50" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AcsmCfD/ag//uDxBRSKE7f+FcMD0xAAkQ1tg Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_0071_01CB2662.0E8A0D50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Bryan, I have seen your airplane and I do not think you have an exit problem. You have plenum from Chris Z, so you are great there. Can you verify for sure that your probes are all calibrated and reading the proper temp? And on the subject of fuel flow, my little 320 needs 12.5 gph or better in the climb and sometimes it will still get hot when its this hot out. You should be 18 gph on take off and at least 14 on climb. Keep your climb speed at 150kts or better on these hot days too. What brand oil cooler are you using? I switched mine to a dual pass Stewart Warner and it made a big difference. Can you send me a picture of the bottom baffling around the cylinders? Something could be off there. Craig Schulze From: Bill Bradburry [mailto:bbradburry@bellsouth.net] Sent: Saturday, July 17, 2010 4:44 PM To: lml@lancaironline.net Subject: RE: [LML] Re: My airplane is running HOT Check the air pressure in flight above the cylinders and compare it to the air pressure below the cylinders. You may find that you need to add a cowl flap. At least you can see how the air is moving thru the cowl in flight. That will go a long way to solving the problem. Bill B _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bryan Wullner Sent: Saturday, July 17, 2010 2:41 PM To: lml@lancaironline.net Subject: [LML] Re: My airplane is running HOT Exit area is standard 360 cowling exit. Can see why it would behave any different than any other lancair out there. Its actually a pretty good size opening. On Fri, Jul 16, 2010 at 8:21 PM, wrote: Posted for Bryan Wullner : Anybody have any ideas or advice for the following situation: Lancair 360 with carbed 360 (180hp) engine. 475 hours on it about. Chrome Cylinders. I have a Plenum cooling system and larger cowling inlets. (Zavatson's cowling and plenum system) Oil cooler is mounted at the front inlet. Oil wont cool in climb and will go up to 230 and probably higher if not stabilized. CHT's are all hot in climbs and will go to 440 no problem. Cant figure it out. Motor runs great, compression good, boroscoped fine, mag timing good. All leaks in plenum or baffling are sealed. Probes were checked out ok. Only thing I haven't checked is the vernotherm. Thanks for any advice. Bryan [How big are your cooling air outlets and where are they located? Sounds like you're getting the cooling air in but not letting it out. Just a thought. ] -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_0071_01CB2662.0E8A0D50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Bryan,

 

I have seen your airplane and I do not think you have an = exit problem.  You have plenum from Chris Z, so you are great = there.  Can you verify for sure that your probes are all calibrated and reading the = proper temp?  And on the subject of fuel flow, my little 320 needs 12.5 = gph or better in the climb and sometimes it will still get hot when its this hot out. = You should be 18 gph on take off and at least 14 on climb. Keep your climb speed at = 150kts or better on these hot days too.  What brand oil cooler are you using?  I switched mine to a dual pass Stewart Warner and it made a = big difference.  Can you send  me a picture of the bottom baffling = around the cylinders?  Something could be off there.  =

 

Craig Schulze

 

 

From:= Bill = Bradburry [mailto:bbradburry@bellsouth.net]
Sent: Saturday, July 17, 2010 4:44 PM
To: lml@lancaironline.net
Subject: RE: [LML] Re: My airplane is running = HOT

 

Check the air pressure in flight above the cylinders and = compare it to the air pressure below the cylinders.  You may find that you = need to add a cowl flap.  At least you can see how the air is moving thru = the cowl in flight.  That will go a long way to solving the = problem.

 

Bill B

 

From:= Lancair = Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bryan = Wullner
Sent: Saturday, July 17, 2010 2:41 PM
To: lml@lancaironline.net
Subject: [LML] Re: My airplane is running = HOT

 

Exit area is standard 360 cowling exit. Can see why = it would behave any different than any other lancair out there. Its actually a = pretty good size opening.

 

 

On Fri, Jul 16, 2010 at 8:21 PM, <marv@lancair.net> = wrote:

Posted for Bryan Wullner <vonjet@gmail.com>:

 Anybody have any ideas or advice for the following situation:
 
 Lancair 360 with carbed 360 (180hp) engine. 475 hours on it about. = Chrome
 Cylinders. I have a Plenum cooling system and larger cowling = inlets.
 (Zavatson's cowling and plenum system)
 Oil cooler is mounted at the front inlet.
 Oil wont cool in climb and will go up to 230 and probably higher = if not
 stabilized. CHT's are all hot in climbs and will go to 440 no = problem. Cant
 figure it out.
 Motor runs great, compression good, boroscoped fine, mag timing = good. All
 leaks in plenum or baffling are sealed.
 Probes were checked out ok.
 
 Only thing I haven't checked is the vernotherm.
 
 Thanks for any advice.
 Bryan

[How big are your cooling air outlets and where are they located?  = Sounds like you're getting the cooling air in but not letting it out.  = Just a thought.  <Marv>  ]

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