Louvers Where to buy or make 4 oil cooler RV-9A

[ron sterba]

So I mounted my oil cooler on the firewall because of the cracking on the corner angle of the oil cooler mounting as reported. Now I have a 3" scat tubing running from the rear baffle plate to the firewall mounted oil cooler. I would like to install air louvers at the rear baffle plate rather than the bottom of the oil cooler. Thinking if the louvers are at the bottom of the cooler would make the scat tubing always under pressure. Course not sure it even makes a difference so Iam asking your thoughts on the subject.Thanks guys

Ron in Oregon QBRV9A N421HJ

[Mike S]

Ron, what kind of louvers are you thinking of???

I have a spare set of louvers that Alex De Dominicas makes.

http://www.rvtraining.com/html/atp/h....html#louver11

I can bring them to the Homecoming if you are going to be there.

[Beancounter]

Ron
I'm flying a 9 with a firewall mounted oil cooler fed by 4" scat. I have tried both restricting the air flow with aluminum tape on the face of the cooler and a louver at the baffles. In my experience, there is no problem with the scat tubing under constant air pressure, if that was your question. I fly in the cold northwest like you and adjust my oil temp now just with tape. When the season changes it is relatively quick to pull one end of the scat off and add or remove tape from the cooler.

[MarkW]

Ron,
I also mounted my oil cooler on the firewall and used a 3" damper collar from Nonstopaviation.
http://www.nonstopaviation.com/3-air-controller-kit-p-14639.html?whatsnew=3%22-Air-Controller-Kit&osCsid=2d8655d979b2aa291af02b639ae65ac7

[Mike S]

After reading the last post, I think you are looking for the oil cooler shutter, not for louvers.

Here is a photo I "borrowed" of a shutter installed on the baffling, with a cooler mounted on the baffling also. The same shutter should also work with a remote mounted oil cooler.



You can also buy a section of round alum tubing with a butterfly valve in it, and insert that into your SCAT tube run.

The shutter shown above is a standard part from Vans.

http://www.vansaircraft.com/cgi-bin/...ct=oil_shutter

[ron sterba]

Originally Posted by Mike S

After reading the last post, I think you are looking for the oil cooler shutter, not for louvers.

Here is a photo I "borrowed" of a shutter installed on the baffling, with a cooler mounted on the baffling also. The same shutter should also work with a remote mounted oil cooler.



You can also buy a section of round alum tubing with a butterfly valve in it, and insert that into your SCAT tube run.

The shutter shown above is a standard part from Vans.

http://www.vansaircraft.com/cgi-bin/...ct=oil_shutter

Thanks Mike, You are right I'm looking for a shutter rather than the louvers. Thanks for the offer I'll pass.. I liked what Mark brought up with the butterfly valve that is very workable.Now Matthew brought up using tape on the oil cooler during the colder months and its funny because a guy at Vans said fly first without the valve and check the temps. If there ok now, don't fix it! When the temps are cooler and you don't like what you see sit down and use TAPE! So the verdict is in, I'll just connect the scat tubing and see how it runs. I'll keep the website handy for the butterfly valve. Ill be working the kitchen at Vans home coming this weekend so I'll see you guys there. Come up and ask for me. Again guys thanks a bunch for the direction here.You got me over the hump! Much appreciated!!!!!!! RON STERBA

[jimbower]

Mark,

Thanks for posting the info about this fitting. I've been looking for something like this since my RV flew two years ago. I had a set of Van's shutters mounted next to the oil cooler on the firewall, but the temps got too high. I removed the shutters, but that didn't help. Turned out I needed louvers on the bottom of the cowling, but now the temps were a bit too cool. I really didn't want to reinstall the shutters because they look too restrictive so I thought a butterfly valve arrangement would be the way to go. I ordered one this morning.

Jim Bower
RV-6A N143DJ
St. Louis, MO...flying since 2011

[MarkW]

I didn't find a very good picture on my build site of the install but here is one just before I connected it to the collar.
[IMG][/IMG]
It adds about 2.5" to the length of the collar. Well made piece and worth the effort.

[ron sterba]

Originally Posted by MarkW

I didn't find a very good picture on my build site of the install but here is one just before I connected it to the collar.
[IMG][/IMG]
It adds about 2.5" to the length of the collar. Well made piece and worth the effort.

Thanks Mark, I slept on it and decided to order the vale and get it over with in the build process. Nice picture! Its very workable. Ill order this morning. I too have the catto prop. I can hardly wait to get my flying. Hoping for start up in a couple of weeks. Thanks again and much appreciated! Ron in Oregon

[Bubblehead]

Originally Posted by ron sterba

So I mounted my oil cooler on the firewall...

Ron in Oregon QBRV9A N421HJ

Ron - how about posting a few pictures of how you mounted your oil cooler. I am thinking about making that change this winter.