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bigginsking
Joined: 25 Sep 2012
Posts: 27
Location: San Diego, California
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 Posted: Thu Mar 27, 2014 9:11 am Post subject: Oil Coolers... |
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I finally got some pictures of my setrab oil cooler install:https://drive.google.com/folderview?id=0BxGKHfbAGXHxcVNxTTZneTJQNFU&usp=sharing
It is this model:
http://www.lpiracing.com/Setrab-Oil-Cooler-Series-1-10-row-M22-Ports-1071p25418.htm
with a 45 and 90 swivel adapter to AN:
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN08-45.JPG
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN06-90.JPG
It may be that Setrab isn't selling that model any longer, I couldn't find it on their web page but there appears to an equivalent, 50-107-7612:
http://www.setrabusa.com/products/oilcoolers/powersteering/index.html
Power steering cooler... not sure what the difference is between that and an engine cooler.
I've got about 900 hrs on this set up, I went this route because I was getting too much cooling from the standard cooler and the standard cooler weight caused cracking on the baffles. I also had a DER friend running one successfully for several hundred hours.
I beefed up the baffles also.
Even now I'm running the cooler with about 1/2 covered with AL tape, so you could probably go smaller if there was a smaller one.
Bottom line is that Aluminum is a superior material for an oil cooler, brass which I believe is what the stock cooler is made of.
This is on a parallel valve IO-360, angle valve may be different.
I know Gary mentioned of one failure of these, I have no idea why that one failed. I've had good luck, in fact I just ticked over to 4 digits on the hobbs: 1000 hrs as of last weekend.
Bill Judge
RV-8.blogspot.com
N84WJ, RV-8, 1000 hrs
On Fri, Feb 21, 2014 at 8:09 AM, Bill Judge <bjudge(at)gmail.com (bjudge(at)gmail.com)> wrote:
[quote]Hey Marty, good to see you're doing well.
Larry, I'll have to dig around for pictures of the install. It wasn't too different than the stock, on the baffle install. I did beef up the baffles in that corner at the same time as going to the smaller cooler. No cracking since I made this change.
The gist of the install was to use 4 pieces of 1x2 inch profile angle, each about an inch long. I think the thickness was 0.125.
use those on each corner of the cooler to grab the coolers mounting holes. shorter side of the angle on the engine baffles, longer side on the cooler.
In an effort to isolate the cooler from vibration I over sized the holes and put in rubber bushings so that the cooler didn't touch anything but the bolts and rubber bushings and then I sealed the perimeter with RTV. The RTV is probably what is actually holding the cooler in place.
Below my sentence got cut off, I meant to say I didn't do the firewall mount because I didn't like the idea of the hoses "working" as the engine vibrated.
Bill
| Quote: |
Time: 10:57:22 AM PST US
From: Marty Helller <marty_away(at)hotmail.com (marty_away(at)hotmail.com)>
Subject: RE: Re: Oil Cooler's...
I have one with ~ 4 hours on it. Will sell for an hours worth of fuel plus
shipping. Had unrelated cooling issues on first few flights=2C but ever
yone pointed to the non- standard configuration (on firewall) so I changed
to SW clone on baffling and still hard other problems to resolve.... Now l
ife is cool at 175 oil temp and < 330 CHT.
Contact off line at [url=tel:703-732-3264]703-732-3264[/url]
Marty
RV-7=2C 150 hrs=2C KSUT
From: bjudge(at)gmail.com (bjudge(at)gmail.com)
Subject: Re: Oil Cooler's...
I just dug back through my emails to find the skinny on the Setrab cooler.
I'm pretty sure it is this one:
http://www.hrpworld.com/store/default/100-series-std-10-row-oil-cooler-3-ta
ll-m22-ports.html
It comes with straight on AN fittings but I couldn't get them to work
in the space I had so I used these:http://www.hrpworld.com/store/default/an
-10-x-m22-hose-fitting-90.html
These fitting are mega expensive but swivel which takes alot of the
stress off the attach points. I went this route for a few reasons:
I had the stock cooler completely covered with AL tape and stillcouldn't ge
t over 200 F temps.(Too much cooling)
My baffles cracked from the weight of the stock cooler.(too much weight)I k
new of a rv-6 built by 3 engineers(one is a DER) and they've flown
400 hrs trouble free with this cooler.I didn't do the firewall mount becaus
e i didn't want the hoses working with engine movement relative to the firewall.
Even still when its cold I can't get over 160 F.
Bill
On Thu=2C Feb 20=2C 2014 at 7:29 AM=2C Bill Judge <bjudge(at)gmail.com (bjudge(at)gmail.com)> wrote:
I've been running a Setrab 10 row for around 750 hrs=2C no problems=2C temp
s often run too low and so its half covered with AL tape. It's about 1/3 th
e size of the standard Vans cooler.
They are made of aluminum rather than brass and AL just works better for a
heat exchanger.
You can get aircraft fittings on them too=2C they even have swivel fittings
at 90 and 45 degrees available.
Bill
N84WJ=2C RV-8=2C 980 hrs
rv-8.blogspot.com
Time: 05:38:47 PM PST US
From: Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>
Subject: Oil Cooler's...
Greetings RV'ers=2C
On the RV-8=2C I've got Stewart/Warner 10610R 10 row oil cooler for the IO-
390.
It's mounted on the rear baffle and its worked well and kept the oil temps
in
the low 180's under all conditions.
I noticed today=2C that the outside mounting flange that goes next to the b
affle
is cracked. I suppose I could get it welded or brazed or whatever they do
to
aluminium=2C but that seems like a hack.
Apparently=2C Chief doesn't carry the Stewart/Warner brand anymore and has
to different
variants of the Aero Classic brand in the 10 Row 10610R compatible unit.
One is the "Standard" model for $269:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/standard/aec-8000081.html
The other is the "HE" (High Efficiency) models are $575:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/he-series/aec-8001646.html
Any thought's on either of these two options? Pros and cons. The HE model
s look
a lot like the S&W model I have=2C assuming the pictures are accurate.
Thanks for the feedback.
Matt
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 200+ Hours Since Purchase - Upgrades Complete=3B Now In Full Flyer
Mode
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
|
[b]
| | - 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:
http://www.matronics.com/Navigator?RV-List |
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_________________
Bill Judge
N84WJ, RV-8 |
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Larry Bowen
Joined: 09 Jan 2006
Posts: 802
Location: NC, USA
|
| Posted: Thu Mar 27, 2014 9:42 am Post subject: Oil Coolers... |
|
|
Nice. Looks like a good option. I'm surprised we don't see this used more often.
On Thursday, March 27, 2014, Bill Judge <bjudge(at)gmail.com (bjudge(at)gmail.com)> wrote:
| Quote: | I finally got some pictures of my setrab oil cooler install:https://drive.google.com/folderview?id=0BxGKHfbAGXHxcVNxTTZneTJQNFU&usp=sharing
It is this model:
http://www.lpiracing.com/Setrab-Oil-Cooler-Series-1-10-row-M22-Ports-1071p25418.htm
with a 45 and 90 swivel adapter to AN:
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN08-45.JPG
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN06-90.JPG
It may be that Setrab isn't selling that model any longer, I couldn't find it on their web page but there appears to an equivalent, 50-107-7612:
http://www.setrabusa.com/products/oilcoolers/powersteering/index.html
Power steering cooler... not sure what the difference is between that and an engine cooler.
I've got about 900 hrs on this set up, I went this route because I was getting too much cooling from the standard cooler and the standard cooler weight caused cracking on the baffles. I also had a DER friend running one successfully for several hundred hours.
I beefed up the baffles also.
Even now I'm running the cooler with about 1/2 covered with AL tape, so you could probably go smaller if there was a smaller one.
Bottom line is that Aluminum is a superior material for an oil cooler, brass which I believe is what the stock cooler is made of.
This is on a parallel valve IO-360, angle valve may be different.
I know Gary mentioned of one failure of these, I have no idea why that one failed. I've had good luck, in fact I just ticked over to 4 digits on the hobbs: 1000 hrs as of last weekend.
Bill Judge
RV-8.blogspot.com
N84WJ, RV-8, 1000 hrs
On Fri, Feb 21, 2014 at 8:09 AM, Bill Judge <[url=javascript:_e(%7B%7D,'cvml','bjudge(at)gmail.com');]bjudge(at)gmail.com[/url]> wrote:
| Quote: | Hey Marty, good to see you're doing well.
Larry, I'll have to dig around for pictures of the install. It wasn't too different than the stock, on the baffle install. I did beef up the baffles in that corner at the same time as going to the smaller cooler. No cracking since I made this change.
The gist of the install was to use 4 pieces of 1x2 inch profile angle, each about an inch long. I think the thickness was 0.125.
use those on each corner of the cooler to grab the coolers mounting holes. shorter side of the angle on the engine baffles, longer side on the cooler.
In an effort to isolate the cooler from vibration I over sized the holes and put in rubber bushings so that the cooler didn't touch anything but the bolts and rubber bushings and then I sealed the perimeter with RTV. The RTV is probably what is actually holding the cooler in place.
Below my sentence got cut off, I meant to say I didn't do the firewall mount because I didn't like the idea of the hoses "working" as the engine vibrated.
Bill
| Quote: |
Time: 10:57:22 AM PST US
From: Marty Helller <[url=javascript:_e(%7B%7D,'cvml','marty_away(at)hotmail.com');]marty_away(at)hotmail.com[/url]>
Subject: RE: Re: Oil Cooler's...
I have one with ~ 4 hours on it. Will sell for an hours worth of fuel plus
shipping. Had unrelated cooling issues on first few flights=2C but ever
yone pointed to the non- standard configuration (on firewall) so I changed
to SW clone on baffling and still hard other problems to resolve.... Now l
ife is cool at 175 oil temp and < 330 CHT.
Contact off line at [url=tel:703-732-3264]703-732-3264[/url]
Marty
RV-7=2C 150 hrs=2C KSUT
From: [url=javascript:_e(%7B%7D,'cvml','bjudge(at)gmail.com');]bjudge(at)gmail.com[/url]
Subject: Re: Oil Cooler's...
I just dug back through my emails to find the skinny on the Setrab cooler.
I'm pretty sure it is this one:
http://www.hrpworld.com/store/default/100-series-std-10-row-oil-cooler-3-ta
ll-m22-ports.html
It comes with straight on AN fittings but I couldn't get them to work
in the space I had so I used these:http://www.hrpworld.com/store/default/an
-10-x-m22-hose-fitting-90.html
These fitting are mega expensive but swivel which takes alot of the
stress off the attach points. I went this route for a few reasons:
I had the stock cooler completely covered with AL tape and stillcouldn't ge
t over 200 F temps.(Too much cooling)
My baffles cracked from the weight of the stock cooler.(too much weight)I k
new of a rv-6 built by 3 engineers(one is a DER) and they've flown
400 hrs trouble free with this cooler.I didn't do the firewall mount becaus
e i didn't want the hoses working with engine movement relative to the firewall.
Even still when its cold I can't get over 160 F.
Bill
On Thu=2C Feb 20=2C 2014 at 7:29 AM=2C Bill Judge <[url=javascript:_e(%7B%7D,'cvml','bjudge(at)gmail.com');]bjudge(at)gmail.com[/url]> wrote:
I've been running a Setrab 10 row for around 750 hrs=2C no problems=2C temp
s often run too low and so its half covered with AL tape. It's about 1/3 th
e size of the standard Vans cooler.
They are made of aluminum rather than brass and AL just works better for a
heat exchanger.
You can get aircraft fittings on them too=2C they even have swivel fittings
at 90 and 45 degrees available.
Bill
N84WJ=2C RV-8=2C 980 hrs
rv-8.blogspot.com
Time: 05:38:47 PM PST US
From: Matt Dralle <[url=javascript:_e(%7B%7D,'cvml','dralle(at)matronics.com');]dralle(at)matronics.com[/url]>
Subject: Oil Cooler's...
Greetings RV'ers=2C
On the RV-8=2C I've got Stewart/Warner 10610R 10 row oil cooler for the IO-
390.
It's mounted on the rear baffle and its worked well and kept the oil temps
in
the low 180's under all conditions.
I noticed today=2C that the outside mounting flange that goes next to the b
affle
is cracked. I suppose I could get it welded or brazed or whatever they do
to
aluminium=2C but that seems like a hack.
Apparently=2C Chief doesn't carry the Stewart/Warner brand anymore and has
to different
variants of the Aero Classic brand in the 10 Row 10610R compatible unit.
One is the "Standard" model for $269:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/standard/aec-8000081.html
The other is the "HE" (High Efficiency) models are $575:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/he-series/aec-8001646.html
Any thought's on either of these two options? Pros and cons. The HE model
s look
a lot like the S&W model I have=2C assuming the pictures are accurate.
Thanks for the feedback.
Matt
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 200+ Hours Since Purchase - Upgrades Complete=3B Now In Full Flyer
Mode
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
|
t="_blank">http://www.matronics.com/Navigator?RV-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
|
--
--
Larry Bowen
Larry(at)BowenAero.com
http://BowenAero.com
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?RV-List |
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_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress... |
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ceengland7(at)gmail.com
Guest
|
| Posted: Thu Mar 27, 2014 3:48 pm Post subject: Oil Coolers... |
|
|
Probably because most RVers are almost as conservative as spam can drivers when it comes to changing stuff in front of the firewall.  One more valid reason is that they are only 2" thick, and 4" is a better match for RV speeds. The thinner one *theoretically* will flow a lot more air, potentially meaning more cooling drag. If the thinner unit appeals to you, read on.
For those who are interested in this type of cooler, they can be had for a lot less money and in many different sizes, if you can use fixed A/N fittings. This cooler:
http://www.cxracing.com/mm5/merchant.mvc?Screen=PROD&Store_Code=CXR&Product_Code=OC-248-30-AN10&Category_Code=RDOC
has been flying on a Mazda 3rotor (~280HP) on an RV-8 for several years. It's available from that vendor through their ebay store at:
http://www.ebay.com/itm/160578859562?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
for $79.00.
If you explore the CX Racing site, you'll find a 30 row, 28 row, 25 row, 19 row, etc. They are all usually available through the ebay store for less money than the price listed on the CX Racing site.
This series is ~10" center to center on the fittings; ~13" overall. Height varies depending on the number of rows. They also sell some with smaller spacing between the fittings.
If anyone's interested, I've got a 19 row that I won't be using on my rotary installation.
On 3/27/2014 12:41 PM, Larry Bowen wrote:
[quote]Nice. Looks like a good option. I'm surprised we don't see this used more often.
On Thursday, March 27, 2014, Bill Judge <bjudge(at)gmail.com (bjudge(at)gmail.com)> wrote:
| Quote: | I finally got some pictures of my setrab oil cooler install: https://drive.google.com/folderview?id=0BxGKHfbAGXHxcVNxTTZneTJQNFU&usp=sharing
It is this model:
http://www.lpiracing.com/Setrab-Oil-Cooler-Series-1-10-row-M22-Ports-1071p25418.htm
with a 45 and 90 swivel adapter to AN:
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN08-45.JPG
http://www.setrabusa.com/images/fittings/Formatted/AN/22-M22AN06-90.JPG
It may be that Setrab isn't selling that model any longer, I couldn't find it on their web page but there appears to an equivalent, 50-107-7612:
http://www.setrabusa.com/products/oilcoolers/powersteering/index.html
Power steering cooler... not sure what the difference is between that and an engine cooler.
I've got about 900 hrs on this set up, I went this route because I was getting too much cooling from the standard cooler and the standard cooler weight caused cracking on the baffles. I also had a DER friend running one successfully for several hundred hours.
I beefed up the baffles also.
Even now I'm running the cooler with about 1/2 covered with AL tape, so you could probably go smaller if there was a smaller one.
Bottom line is that Aluminum is a superior material for an oil cooler, brass which I believe is what the stock cooler is made of.
This is on a parallel valve IO-360, angle valve may be different.
I know Gary mentioned of one failure of these, I have no idea why that one failed. I've had good luck, in fact I just ticked over to 4 digits on the hobbs: 1000 hrs as of last weekend.
Bill Judge
RV-8.blogspot.com
N84WJ, RV-8, 1000 hrs
On Fri, Feb 21, 2014 at 8:09 AM, Bill Judge <[url=javascript:_e(%7B%7D,\'cvml\',\'bjudge(at)gmail.com\');]bjudge(at)gmail.com[/url]> wrote:
| Quote: | Hey Marty, good to see you're doing well.
Larry, I'll have to dig around for pictures of the install. It wasn't too different than the stock, on the baffle install. I did beef up the baffles in that corner at the same time as going to the smaller cooler. No cracking since I made this change.
The gist of the install was to use 4 pieces of 1x2 inch profile angle, each about an inch long. I think the thickness was 0.125.
use those on each corner of the cooler to grab the coolers mounting holes. shorter side of the angle on the engine baffles, longer side on the cooler.
In an effort to isolate the cooler from vibration I over sized the holes and put in rubber bushings so that the cooler didn't touch anything but the bolts and rubber bushings and then I sealed the perimeter with RTV. The RTV is probably what is actually holding the cooler in place.
Below my sentence got cut off, I meant to say I didn't do the firewall mount because I didn't like the idea of the hoses "working" as the engine vibrated.
Bill
| Quote: |
Time: 10:57:22 AM PST US
From: Marty Helller <[url=javascript:_e(%7B%7D,\'cvml\',\'marty_away(at)hotmail.com\');]marty_away(at)hotmail.com[/url]>
Subject: RE: Re: Oil Cooler's...
I have one with ~ 4 hours on it. Will sell for an hours worth of fuel plus
shipping. Had unrelated cooling issues on first few flights=2C but ever
yone pointed to the non- standard configuration (on firewall) so I changed
to SW clone on baffling and still hard other problems to resolve.... Now l
ife is cool at 175 oil temp and < 330 CHT.
Contact off line at [url=tel:703-732-3264]703-732-3264[/url]
Marty
RV-7=2C 150 hrs=2C KSUT
From: [url=javascript:_e(%7B%7D,\'cvml\',\'bjudge(at)gmail.com\');]bjudge(at)gmail.com[/url]
Subject: Re: Oil Cooler's...
I just dug back through my emails to find the skinny on the Setrab cooler.
I'm pretty sure it is this one:
http://www.hrpworld.com/store/default/100-series-std-10-row-oil-cooler-3-ta
ll-m22-ports.html
It comes with straight on AN fittings but I couldn't get them to work
in the space I had so I used these:http://www.hrpworld.com/store/default/an
-10-x-m22-hose-fitting-90.html
These fitting are mega expensive but swivel which takes alot of the
stress off the attach points. I went this route for a few reasons:
I had the stock cooler completely covered with AL tape and stillcouldn't ge
t over 200 F temps.(Too much cooling)
My baffles cracked from the weight of the stock cooler.(too much weight)I k
new of a rv-6 built by 3 engineers(one is a DER) and they've flown
400 hrs trouble free with this cooler.I didn't do the firewall mount becaus
e i didn't want the hoses working with engine movement relative to the firewall.
Even still when its cold I can't get over 160 F.
Bill
On Thu=2C Feb 20=2C 2014 at 7:29 AM=2C Bill Judge <[url=javascript:_e(%7B%7D,\'cvml\',\'bjudge(at)gmail.com\');]bjudge(at)gmail.com[/url]> wrote:
I've been running a Setrab 10 row for around 750 hrs=2C no problems=2C temp
s often run too low and so its half covered with AL tape. It's about 1/3 th
e size of the standard Vans cooler.
They are made of aluminum rather than brass and AL just works better for a
heat exchanger.
You can get aircraft fittings on them too=2C they even have swivel fittings
at 90 and 45 degrees available.
Bill
N84WJ=2C RV-8=2C 980 hrs
rv-8.blogspot.com
Time: 05:38:47 PM PST US
From: Matt Dralle <[url=javascript:_e(%7B%7D,\'cvml\',\'dralle(at)matronics.com\');]dralle(at)matronics.com[/url]>
Subject: Oil Cooler's...
Greetings RV'ers=2C
On the RV-8=2C I've got Stewart/Warner 10610R 10 row oil cooler for the IO-
390.
It's mounted on the rear baffle and its worked well and kept the oil temps
in
the low 180's under all conditions.
I noticed today=2C that the outside mounting flange that goes next to the b
affle
is cracked. I suppose I could get it welded or brazed or whatever they do
to
aluminium=2C but that seems like a hack.
Apparently=2C Chief doesn't carry the Stewart/Warner brand anymore and has
to different
variants of the Aero Classic brand in the 10 Row 10610R compatible unit.
One is the "Standard" model for $269:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/standard/aec-8000081.html
The other is the "HE" (High Efficiency) models are $575:
http://www.chiefaircraft.com/aircraft/oil-system-filters/oil-cooler
s/he-series/aec-8001646.html
Any thought's on either of these two options? Pros and cons. The HE model
s look
a lot like the S&W model I have=2C assuming the pictures are accurate.
Thanks for the feedback.
Matt
-
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 200+ Hours Since Purchase - Upgrades Complete=3B Now In Full Flyer
Mode
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only. http://klvk.matronics.com
|
t="_blank">http://www.matronics.com/Navigator?RV-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
|
--
--
Larry Bowen
Larry(at)BowenAero.com (Larry(at)BowenAero.com)
http://BowenAero.com
[b]
| | - 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:
http://www.matronics.com/Navigator?RV-List |
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Laird
Joined: 27 Mar 2014
Posts: 1
|
| Posted: Thu Mar 27, 2014 7:38 pm Post subject: Re: Oil Coolers... |
|
|
Gary mentioned a failure in the past of the setrab oil cooler. That was me back in June 2000. There was a bunch of discussion then about it then. Would recommend searching that time frame in the archives. I'll copy my original post.
Personally, I wouldn't recommend anyone to use one, but that's the great thing about homebuilts. You can do whatever YOU want.
Laird
(and yes, I shouldn't have over flown a perfectly good airport, but that's what I did as the oil temp and pressure were still in the green).
From June 2000
#67570
Date: Jun 02, 2000
From: "Owens, Laird"
Subject: Setrab Oil Cooler Failure (long)
Hi all,
Yesterday on the 3rd flight of my RV-6, I had an interesting thing happen. I was
out to break in my new 0-360 (and have a little fun) and out about 30nm from
the departure airport, 5500', 2550 rpm just cruising along about ready to turn
for a run back. I was going to do this back and forth thing for 2 hours to
let the motor work a little.
I have a 16 row Setrab oil cooler mounted behind the #4 cyl on the baffle. Setrab
oil coolers had been recommended in the past as a low cost alternative to
S/W's (see post from archives below). Oil temps have been consistent at 225 deg
F (75 deg F ambient at 0 MSL). I was hoping that would come down a little once
the engine broke in. Oil pressure had been stable at 90 psi.
Just before I was going to turn, with about 3 hrs total on the tach, I noticed
a little puddle of oil on the floorboard in front of the rudder peddles. That's
weird.....I don't have any oil lines in under the dash.....OH (at)#$(at)! Oil must
be leaking in the engine compartment and seeping thru the wire pass thru's.
I looked up just in time to see oil starting to come out of the upper cowling
at the fuse/cowl junction. Oil pressure had dropped 5 psi, but was stable,
and temp was still 225. First, pull the power to 1800 and think.
OK....decision time. I was just north of Valencia, about 15nm from Whiteman or
Van Nuys, and about 17nm out of Santa Paula (gawd I love that GPS). Lots of
houses between me Whiteman, and a river bed between me and Santa Paula.....let's
see, if the engine fails, I can land on a house, or a river bed. That's a
no brainer. And if I can make Santa Paula, Camarillo is just around the corner.
Maybe I can make it all the way back to home base......
I keep the power low, watch the oil pressure and temp and head for Santa Paula
decending at about 200 fpm to keep the speed up while the motors still running.
I pass over Santa Paula at 2500' with good oil pressure so I decide to press on
to Camarillo. Tower was helpful getting me on the ground quickly without having
to declare the "E" word.
I taxied back to the hangar and shut down. I climbed out to find oil dripping
from the lower firewall to the tailwheel, on the side of the fuse and on the wing
root and no oil on the dipstick. Guess it lost a little more oil than I thought,
duh. What a mess in the "engine compartment formally know as clean".
I pulled the cowl and cleaned up the airplane up (I'm sure the EPA would like to
talk to me bout now....).
The oil lines were tight, that only leaves the oil cooler. Pulled that and put
an air nozzle to it. Sounds like a big hole up where the tubes get welded to
the main plenum.
Hello, Van's......Can I order a Positech oil cooler and have it delivered over
night? Thank you.
So much for trying to save a couple of bucks on the cooler.
Just thought anyone out there with one of these might like to know about it. I
hadn't seen any failure reports in the archives.
Laird RV-6 (with a well lubed paint job)
SoCal
From the Archives:
From: Mlfred(at)aol.com
Date: Aug 16, 1996
Subject: Re: Oil cooler location & low cost option
Hi all:
PLEASE don't think you need one of those expensive coolers on your bird! Rob
Lee will tell you, and so will I.
I use a small & inexpensive ($65) cooler (with male -8 AN fittings already
installed) from TMR, Inc in Orange, Calif. (714) 771-1348. Talk to Mike and
tell him I sent you ( he'll only charge you an extra 10%). The 19 row ($70
"Setrab" brand- malmo in Sweden) unit I use on my Rocket keeps the temps on
the 540 to 185F in cruise, and I think I used a 13 row on the -4, and it was
usually too much. Rob Lee has the exact part # for the 320/360 unit. How
about posting it, along with installation tips, Rob?
I mounted mine on the back baffle, on the left side. I used the
expanding-slowing air/increasing pressure idea, and the inlet to the cooler
is sort of a reverse funnel.
Check six!
Mark Frederick
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