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  #1  
Old 07-18-2017, 06:47 AM
Apexeon Apexeon is offline
 
Join Date: Apr 2014
Location: Tallahassee, FL
Posts: 37
Exclamation Lycoming SB 632 7/17/2017

I just saw this on a facebook post. Going to read the entire SB then try to track down serial numbers for my rods that were installed a couple of years ago during my OH to see if I have to do this. This could be a huge expense for some Lycoming owners.

EDIT: Looks like my engine won't be affected as my rods were shipped in 2014, before the specified time period.

http://www.lycoming.com/sites/defaul...0Removal_0.pdf
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Don Thompson
Tallahassee, FL
Hangar D-3 Quincy, FL (2J9)

N726DT RV 6 Flying
N4493J '67 Cherokee 140 sold
N2120J '78 Warrior II owned twice, sold twice

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Last edited by Apexeon : 07-18-2017 at 07:55 AM.
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  #2  
Old 07-18-2017, 07:18 AM
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johngoodman johngoodman is offline
 
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Location: Peachtree City, Georgia
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Yup, our engine is on there. In fact, I'd say if you bought a Lyc in the past year, you're on there.
John
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  #3  
Old 07-18-2017, 07:53 AM
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airguy airguy is online now
 
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Location: Garden City, Tx
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Yeesshhh.... this one might get ugly.
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Greg Niehues - VAF 2017 dues paid
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N16GN flying! http://websites.expercraft.com/airguy/
Built an off-plan 9A with too much fuel and too much HP. Should drop dead any minute now.
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  #4  
Old 07-18-2017, 08:04 AM
tspear tspear is offline
 
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Location: Boston Area
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Quote:
Originally Posted by airguy View Post
Yeesshhh.... this one might get ugly.
I have not read in detail many Lycoming SBs. What I find interesting on this one is the warranty information is front and center, I have never seen the warranty information so prominently displayed before.

Tim
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  #5  
Old 07-18-2017, 09:09 AM
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airguy airguy is online now
 
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Quote:
Originally Posted by tspear View Post
I have not read in detail many Lycoming SBs. What I find interesting on this one is the warranty information is front and center, I have never seen the warranty information so prominently displayed before.

Tim
That, and the time of compliance within next 10 hours to inspect....

Lycoming must realize they really stepped in something here - curious to hear the backstory on this one. At least its a relatively small time window for production.

My engine is not on the applicable list, I dodged this bullet.
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Greg Niehues - VAF 2017 dues paid
Garden City, TX
N16GN flying! http://websites.expercraft.com/airguy/
Built an off-plan 9A with too much fuel and too much HP. Should drop dead any minute now.
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  #6  
Old 07-18-2017, 09:21 AM
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boom3 boom3 is offline
 
Join Date: Dec 2006
Location: Sumner, WA
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Big bummer. I'm always amazed when something like this comes up as the engines really haven't changed since the 50's.

Have they ever been perfect or does one SB eventually just create another down the road after material and or procedures change? I'm guessing it is always work in progress after looking at the 74 pages of Service Bulletins Letters and Instructions.

Wow, tough business...
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Sumner, WA
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  #7  
Old 07-18-2017, 09:35 AM
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airguy airguy is online now
 
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Can you replace the con-rods and bearings without splitting the case? Doesn't look practical to me but I've never opened an engine either. This looks like a pretty invasive fix to a nearly new engine.
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Greg Niehues - VAF 2017 dues paid
Garden City, TX
N16GN flying! http://websites.expercraft.com/airguy/
Built an off-plan 9A with too much fuel and too much HP. Should drop dead any minute now.
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  #8  
Old 07-18-2017, 09:47 AM
Bavafa Bavafa is online now
 
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Location: Sacramento, CA
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I didn't see a date for the engine/parts shipped but checked my S/N and luckily I am not affected
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  #9  
Old 07-18-2017, 09:47 AM
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SkyFlorida SkyFlorida is offline
 
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Location: Orlando, FL
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Got my engine through Van's at SnF 2016. Still in box.

And it's on the SB list.
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Michael Albert
RV-7 / N957M reserved
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  #10  
Old 07-18-2017, 09:52 AM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
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Quote:
Originally Posted by airguy View Post
Can you replace the con-rods and bearings without splitting the case? Doesn't look practical to me but I've never opened an engine either. This looks like a pretty invasive fix to a nearly new engine.
It is invasive but can be done.
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2001 RV-6 N46KB

Last edited by Kyle Boatright : 07-18-2017 at 09:56 AM.
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