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  #1  
Old 06-02-2019, 09:13 PM
JDA_BTR JDA_BTR is online now
 
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Default Loctite 564
It’s called out in the lycoming oil screen plug specs for plug reinstallation. Hard to come by. What is an acceptable and easier to find substitute.
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  #2  
Old 06-02-2019, 10:25 PM
PCHunt PCHunt is offline
 
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Which oil screen plug are you referring to? The oil supply screen in the sump that comes out of the back of the sump on the right side has a copper crush washer, and is safety-wired.
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  #3  
Old 06-02-2019, 10:56 PM
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It's available on Amazon with free shipping.

-Marc
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  #4  
Old 06-03-2019, 05:25 AM
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Quote:
Originally Posted by JDA_BTR View Post
It?s called out in the lycoming oil screen plug specs for plug reinstallation. Hard to come by. What is an acceptable and easier to find substitute.
It is a low strength thread sealant.



NAPA is the cheapest place to get the the real thing. Any pipe sealant will work.
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  #5  
Old 06-03-2019, 06:55 AM
JDA_BTR JDA_BTR is online now
 
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I ordered from NAPA and the local store says "yeah, we can't get it for you". So that seems to not work....

It looks like the little tube will cost $30-35 or so including shipping to get delivered.

And yes, there is a copper crush gasket and lockwire on this; I think it acts as a threadlocker in this application (a couple drops). There was def a low strength thread locker on there when I took it off yesterday (first time).

I'm wondering if there is something a lot like it, more readily available.

This looks very similar:
https://www.grainger.com/product/PER...-Sealant-2GXX5
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Last edited by JDA_BTR : 06-03-2019 at 07:01 AM.
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  #6  
Old 06-03-2019, 09:56 AM
Kalibr Kalibr is offline
 
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Titan/ECI/Continental call for the loctite food grade antisieze for this application.

https://www.amazon.com/Loctite-11672.../dp/B005YSBVLK

Lifetime supply for half the price of the other obscure threadlocker.

Frankly, I don?t understand the rationale for either of these in the application where you have a crush washer and safety wire and with the threads soaking in oil.
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  #7  
Old 07-24-2019, 08:57 PM
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Wunderon Wunderon is offline
 
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umm, Lycoming SB 480F calls for Loctite 564 or equivalent on the oil drain plugs, not the suction screen.

what?s an equivalent to 564 ?
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  #8  
Old 07-24-2019, 09:28 PM
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digidocs digidocs is offline
 
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Loctite? Liquid Thread Sealants
Properties Chart:

http://ecatalog.mecampbell.com/conte...s/LOC21453.pdf
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  #9  
Old 07-24-2019, 11:32 PM
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G-force G-force is offline
 
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I bet any dedicated thread sealant would be fine. I've use 567 on thousands of NPT fittings over the last 20+ years with no issues. As that chart in the post above shows, 567 is the higher temp version of the general purpose 564 with the same agency approvals.
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Last edited by G-force : 07-24-2019 at 11:34 PM.
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  #10  
Old 07-24-2019, 11:52 PM
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Larco Larco is offline
 
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https://www.amazon.com/Permatex-5921...a-434501655098 Is very easy to come by in auto supply stores
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