F-16 Reference
5th Gen Fighters
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hairypig
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 Posted: Oct 08, 2009 - 03:30 PM
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Newbie
Joined: Oct 08, 2009 - 03:27 PM
Posts: 1
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Sponsor
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 Posted: May 26, 2012 - 6:57 PM
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F-16.net Sponsor
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cchief16
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Posted: Oct 08, 2009 - 10:27 PM
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Active Member
Joined: Oct 16, 2005 - 10:26 PM
Posts: 204
Status: Offline
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| are you talking about the 360 day perserves? |
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F-16 crewchief
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That_Engine_Guy
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Posted: Oct 09, 2009 - 03:55 AM
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Elite 2K
Joined: Dec 14, 2005 - 05:03 AM
Posts: 2168
Location: Under the engine somewhere.
Status: Offline
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Engine Preservation won't be in a JG (Job Guide) as far as I know. The process involves using MIL-L-6081, Grade 1010 oil in place of the fuel supply. (Or pumped into the engine's various components) There is no way I know of to accomplish this on an installed engine. The required access just is not available. The proper procedure is accomplished with the engine removed.
It is in the 2J Series T.O. for intermediate (shop) maintenance of the engine.
Either 2J-F100-XX-X or the 2J-F110-XX-X for PW or GE motors respectively.
For the F100-PW-200/-220/-229 it would be the 2J-F100-31/-41/-51-1
"OPERATION AND SERVICE INSTRUCTIONS"
To properly preserve an engine for long term storage, it must be done uninstalled and rotating. There are procedures for 'non-rotating' engines, but it is rarely done as it is much more time consuming and requires many more specialized connections to get the oil into the correct places inside the engine and components.
The biggest factor in long term preservation is the type (quality) of enclosure, and how well it protects the engine from air and moisture. The proper containers are air-tight and will house many MANY pounds of desiccant to protect the engine from condensation. Humidity indicators in the container must be checked, and if the humidity rises above 40% the desiccant must be replaced. If the engines aren't in the proper container, or the humidity is above 40% corrosion will quickly form and engine damage will occur.
Almost all USAF engine preservation are of the 180 day (6-Month) variety. (IE not sealed containers) They use either zippered 'bags' or plastic wrap. I haven't seen a 'sealed' vacuum packed, desiccant filled "Type II Flexible Container" with humidity indicators in almost a decade now.
 It's been even longer for a whole-engine 'can' like the J57 and J75 would use.
Engines that are not to be used for less than 45 days require no preservation. Either installed or uninstalled. So if you have a Viper that is going to 'sit' for more than 1.5 months, it is best to have the engine removed and preserved by your engine folks. (Or if the aircraft is capable perform an engine run every 45 days)
Keep 'em flyin' 
TEG |
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[Airplanes are] near perfect, all they lack is the ability to forgive.
— Richard Collins
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