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bobbyhester(at)charter.ne
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 Posted: Sat Feb 24, 2007 4:10 pm Post subject: low oil temps |
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My oil temps are running low and I am putting alum. tape on the cooler
to get them up. I'm thinking about ordering the oil cooler vent from
Vans. What you you guys doing?
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Surfing the web with my laptop from Hopkinsville, KY
Visit my RV7A website: http://webpages.charter.net/bobbyhester/FinishingUpPg3.htm
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Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
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| Posted: Sat Feb 24, 2007 8:23 pm Post subject: low oil temps |
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Over the years there has been much discussion here regarding oil cooler blocking to elevate oil temps in cold climes. It seems that most attemps to block off a baffle-mounted cooler at the rear of the cooler exhibited marginal improvements at best, and those that covered the front of the cooler much more effective. I suspect that the reason is that if the rear of the cooler is blocked, there is still enough cold air swirling around at the front of the cooler to pretty effectively cool it. As some evidence (FWIW!) my firewall-mounted cooler has a butterfly valve upstream from the cooler operated by a cable that allows me to regulate airflow through the cooler and allows me to accurately "set" whatever oil temp I desire, regardless of OAT. See:
http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=5001
From the info on Vans web catalog website, it appears this shutter would block quite a bit of airflow even when open, but I have no evidence of this. I'm curious if it works well fully open in hot climates. It DOES say it mounts between the baffle and cooler, so it may prove effective. I'd suspect that before it was offered by Vans is had been pretty well qualified. See:
http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1172376538-200-201&browse=engines&product=oil_shutter
I'd suggest some aluminum duct tape or cover plate taped in place over most if not all of the cooler front face as an experiment- easy to do and might be perfectly serviceable prior to onset of Kentucy summer- fer shure much less co$t & hassle...
Mark
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HCRV6(at)comcast.net
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| Posted: Sun Feb 25, 2007 1:00 pm Post subject: low oil temps |
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I have just finished installing Van's oil cooler vent on the front of my baffle mounted cooler but haven't flown with it yet because of bad weather. I am only slightly concerned about the amount on airflow that will be blocked in the fully open position in hot weather. I have been flying in hot weather with a plate on the back of the cooler with eight 5/8 in. holes in it and have never seen over 180 deg. F with that set up even with OATs over 115 F., so I am optimistic that I won't have a problem.
A heads up for those planning to install one of these vents. I discovered that fins on the front side of my cooler protrude a little ahead of the mounting flanges. When I first tightened the mounting bolts the vent mechanism locked up because of this and could not be moved. The simple fix in my case was to put .032 spacer strips between the cooler mounting flanges and the vent. FWIW.
--
Harry Crosby
RV-6 N16CX, O-360, 312 hours
-------------- Original message ----------------------
From: Bobby Hester <bobbyhester(at)charter.net>
| Quote: |
My oil temps are running low and I am putting alum. tape on the cooler
to get them up. I'm thinking about ordering the oil cooler vent from
Vans. What you you guys doing?
--
Surfing the web with my laptop from Hopkinsville, KY
Visit my RV7A website:
http://webpages.charter.net/bobbyhester/FinishingUpPg3.htm
|
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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bobbyhester(at)charter.ne
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| Posted: Sun Feb 25, 2007 6:42 pm Post subject: low oil temps |
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Does it just bolt between the cooler and the baffle or was there rivets to drill out? I'm about to order one.
HCRV6(at)comcast.net (HCRV6(at)comcast.net) wrote: [quote] | Quote: | --> RV-List message posted by: HCRV6(at)comcast.net (HCRV6(at)comcast.net)
I have just finished installing Van's oil cooler vent on the front of my baffle mounted cooler but haven't flown with it yet because of bad weather. I am only slightly concerned about the amount on airflow that will be blocked in the fully open position in hot weather. I have been flying in hot weather with a plate on the back of the cooler with eight 5/8 in. holes in it and have never seen over 180 deg. F with that set up even with OATs over 115 F., so I am optimistic that I won't have a problem.
A heads up for those planning to install one of these vents. I discovered that fins on the front side of my cooler protrude a little ahead of the mounting flanges. When I first tightened the mounting bolts the vent mechanism locked up because of this and could not be moved. The simple fix in my case was to put .032 spacer strips between the cooler mounting flanges and the vent. FWIW.
--
Harry Crosby
RV-6 N16CX, O-360, 312 hours
-------------- Original message ----------------------
From: Bobby Hester <bobbyhester(at)charter.net> (bobbyhester(at)charter.net)
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HCRV6(at)comcast.net
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| Posted: Mon Feb 26, 2007 11:42 am Post subject: low oil temps |
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