VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Main > RV General Discussion/News
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 05-22-2020, 07:25 AM
David Carter David Carter is offline
 
Join Date: Mar 2018
Location: Alpharetta, GA
Posts: 157
Default Trick to installing the intercylinder baffles?

While troubleshooting high CHT issues, I noticed that the right side intercylinder baffle was installed incorrectly on my Superior O-360. I suspect this happened when the #3 cylinder was replaced while the plane was under previous ownership. The outer vertical portion of the baffle was installed between the first & second fins from the top of the head, rather than on the outside of the first fin. The baffle was also shifted perhaps 1/4" to the rear due to interference this created with the cylinder mounting bolts. The baffle was bent out of shape where it meets the crankcase, resulting in a significant gap (cooling air leak).

I have straightened the baffle & now have a better (but not perfect) fit to the crankcase & cylinder bases. I see there are some threads about sealing those gaps with RTV, so I'm off to read them next.

My problem now is, how do I bend the upper retaining spring enough to re-attach the retaining hook? The Lycoming service manual was no help, it just says to press it down until the hook can be re-engaged.
__________________
David
RV-7A Slider N87BP (bought flying in 2018)
Superior XP-IO-360, Hartzell G2YR/N7605W-2X
AFP Fuel Injection & Dual SDS CPI-2 ignition
KLZU - Lawrenceville, GA
2021 Dues Paid
Reply With Quote
  #2  
Old 05-22-2020, 07:32 AM
Taltruda Taltruda is offline
 
Join Date: Oct 2017
Location: Las Vegas, NV
Posts: 1,140
Default

If it?s the part that I?m thinking of, I use a loop of safety wire to pull up on the hook, while using my thumbs to push down on the flat spring.
__________________
Tom
Las Vegas
RV-4 flying…
RV-8 empenage finished 10-2020

Wings Started.. 11-2020
Reply With Quote
  #3  
Old 05-22-2020, 07:59 AM
Flash Flash is offline
 
Join Date: Sep 2018
Location: Boerne, TX
Posts: 114
Default

make it a two man job, I too use safety wire to pull on the hook while the other uses a flat head screwdriver to push down the baffle.
Reply With Quote
  #4  
Old 05-22-2020, 08:01 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,773
Default

Make a loop with safety wire, insert the loop through the slot in the top retainer spring and hook the vertical rod. With top retainer in place, press down with a large screw driver on the center of the spring retainer while maneuvering the vertical rod in place. .031 safety wire Keeps the rod & wire just thin enough to fit through the retainer spring slot.
__________________
Ralph
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more
Reply With Quote
  #5  
Old 05-22-2020, 08:10 AM
David Carter David Carter is offline
 
Join Date: Mar 2018
Location: Alpharetta, GA
Posts: 157
Default Thanks!

Thanks to all who chimed in. Safety wire seems to be the consensus. It's great to be able to tap into all the knowledge on this forum!
__________________
David
RV-7A Slider N87BP (bought flying in 2018)
Superior XP-IO-360, Hartzell G2YR/N7605W-2X
AFP Fuel Injection & Dual SDS CPI-2 ignition
KLZU - Lawrenceville, GA
2021 Dues Paid
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 08:48 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.