VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-4
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 12-13-2019, 01:54 PM
RV8JD's Avatar
RV8JD RV8JD is offline
 
Join Date: Jan 2005
Posts: 523
Default

Quote:
Originally Posted by Steve Ashby View Post
I am just finishing up my baffles, with the oil cooler mounted thereon (RV-8A). I would be happy to mount it elsewhere, if that is better. What say you?
As others have pointed out, cracking of the baffle behind #4 cylinder with the oil cooler mounted there is pretty common. I purchased my first RV-8 with about 122 hours on it. The baffle cracked around 400 hours or so, IIRC. When we repaired it we also put in an extruded AL angle. The baffle has not cracked since, and that RV-8 now has 2,200+ hours on it.

I bought my current RV-8 with about 208 hours on it, and shortly after I bought it the baffle cracked on that one too. It has a brace between the engine case the baffle behind cylinder #4, but that didn't prevent the baffle from cracking. So we repaired it with the same AL angle fix, just as we did with my previous RV-8. So far so good, and I expect no cracking going forward.

Below are some pics from current RV-8.

Cracked:



Fixed:



Neither of my RV-8s have any problem with oil cooling. In fact, both need to have the the front of the oil cooler partially or fully closed off in the Winter to keep the oil temps up. Both RV-8s have parallel valve IO-360s, but my previous RV-8 has 10:1 high compression pistons. Both have Hartzell CS props.

I'm surprised Van's hasn't fixed that detail in the design yet (well, maybe not surprised since the RV-8s, 7s, 6s, 4s are older models)!

(Oh, and "Skookum" is a technical term! )
__________________
Carl N.
Arlington, WA (KAWO)
RV-8, 645 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
(Pic)
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflügel Standard Libelle 201B - Sold
Rolladen-Schneider LS1-f - No longer owned

Last edited by RV8JD : 12-13-2019 at 04:48 PM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 06:58 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.