 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
davwol(at)svtv.com
Guest
|
 Posted: Thu Jul 13, 2006 1:15 pm Post subject: Oil cooler |
 |
|
Where is the best place for the oil cooler on a RV 9A, baffle or firewall and why.
Dave
9a
Finishing
| | - 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 |
|
|
|
| Back to top |
|
 |
Gary.A.Sobek
Joined: 09 Jan 2006
Posts: 217
Location: SoCAL USA
|
| Posted: Thu Jul 13, 2006 1:50 pm Post subject: Oil cooler |
|
|
The RV-9A baffle and firewall is very similar to the RV-6. On my RV-6, I
had redline oil temps during and after flight testing with the oil cooler
mounted on the firewall. I ran about 15 degrees hotter than the other RVs
in cruise with it on the firewall.
I move the oil cooler to the engine mount right behind the #4 cylinder with
a 3" X 5" opening with baffle seal between it and the rear baffle. I now
run the same oil temp to 15 degrees cooler than the other RV.
I had 3 bad experiences with high oil temp and vapor lock with the oil
cooler on the firewall. I do not recommend mounting it there. I had 3"
SCAT tubing going to it from #3 cylinder. Others have had it work but I
could not get it to work on my airplane.
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell,
1,892 + Flying Hours So. CA, USA
http://SoCAL_WVAF.rvproject.com
----Original Message Follows----
Reply-To: rv-list(at)matronics.com
Where is the best place for the oil cooler on a RV 9A, baffle or firewall
and why.
Dave
9a
Finishing
| | - 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 |
|
|
|
| Back to top |
|
|
Albert Gardner
Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ
|
| Posted: Thu Jul 13, 2006 1:57 pm Post subject: Oil cooler |
|
|
I mounted mine on the baffle behind #4. No aircraft temp problems. Forecast is for something like 116 in the next day or so. Short hops are usually at 1-3000 AGL with cruising temps at 80-90+ with no overheating problems. I have a 7 row cooler.
Albert Gardner
Yuma, AZ
| | - 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 |
|
_________________
RV-9A N872RV
RV-10 N991RV |
|
| Back to top |
|
|
cweyant(at)chuckdirect.co
Guest
|
| Posted: Thu Jul 13, 2006 2:40 pm Post subject: Oil cooler |
|
|
Did mine on the baffle. Did it exactly the way Van's baffle kit said to do it except I put an extra piece of sheet aluminum as a doubler to stiffen it up to keep it from flexing and cracking. Cut the air access hole just as indicated in the plans. Some guys thought I should enlarge the hole because about 1/3 of the oil cooler fins are covered by the plans mounting. Turns out Vans is right. Build it by the plans and you'll be happy. I've had no hight temps at all. In fact, the temps have never been higher than 200 (in climb) and 180 (cruise).
Chuck Weyant
RV9A 185 hours
O320E3D 150HP
| Quote: |
I mounted mine on the baffle behind #4. No aircraft temp problems. Forecast is for something like 116 in the next day or so. Short hops are usually at 1-3000 AGL with cruising temps at 80-90+ with no overheating problems. I have a 7 row cooler.
Albert Gardner
Yuma, AZ
|
| | - 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 |
|
|
|
| Back to top |
|
|
FLYaDIVE(at)aol.com
Guest
|
| Posted: Thu Jul 13, 2006 3:28 pm Post subject: Oil cooler |
|
|
In a message dated 7/13/06 5:17:03 PM Eastern Daylight Time, davwol(at)svtv.com
writes:
| Quote: | Where is the best place for the oil cooler on a RV 9A, baffle or firewall
and
|
| Quote: | why.
Dave
9a
Finishing
============================
|
Dave:
I fly both an RV-6 and a RV-6A.
The RV-6 has the cooler mounted right at the intake scoop.
Things I have noticed with this mounting are:
~ VERY COOL oil, in the winter I have to cover over half of the cooler to get
the temps up to normal (170- 190 Deg F)
~ In the summer even on hot 85 - and 95 Deg F days the oil temp runs 190- 200
Deg F MAX.
~ In the summer sitting on the taxi way in a line of planes and facing away
from the wind the oil still runs cool.
~ The one negative thing I must report about the intake mounting of the
cooler is the long hose runs and making sure they are secure. I check them about
twice a year just to make sure nothing has moved. NOTHING HAS EVER MOVED.
- - - - - - - - - - - - - - -
The RV-6A has the cooler mounted on the back of the baffling.
Things I have noticed about this mounting are:
~ In the winter I have to cover over half of the cooler to get the temps up
to normal (170- 190 Deg F) - Same as the RV-6.
~ In the summer even on hot 85 - and 95 Deg F days the oil temp runs a bit
hot usually hovering around 195 - 210 Deg F MAX. Now this is on climb-out. It
drops to about 195 - 200 Deg F in cruse ... REMEMBER we are still talking HIGH
OAT (5000 Ft or less).
~ In the summer sitting on the taxi way in a line of planes and facing away
from the wind the oil DOES get warmer than I like and if the plane has a horn I
would be beeping it ... Instead I have the luxury of politely remarking on
how are YOUR oil and CHTs temps doing ... Sure would like to cool the engine
down by flying 
~ The one other negative thing I must report about the baffle mounting of the
cooler is the extra heat stuffed in the rear of the engine ... Right where
the Mag & electronic ignition are and right where the vacuum pump is. I put a
probe there and on the RV-6 I see 135 Deg F.
On the RV-6A I see 170 Deg F.
Barry
"Chop'd Liver"
| | - 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 |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
