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c/aircraft-mechanics•michaela16michaela16•4d ago

Just found out about the hydraulic fluid trick for frozen fasteners

Was talking to a Delta heavy check guy at a bar in Atlanta last night and he mentioned spraying a little skydrol around stubborn bolts before torching them. Never even crossed my mind to use the fluid itself as a penetrant, but he said the heat breaks down the glycol base somehow. I tried it this morning on a frozen lower nacelle screw and it backed out after like 30 seconds of heat. Has anyone else used hydraulic fluid this way or is that just a Delta thing?
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2 Comments
fiona332
fiona3324d ago
Wait, do you just heat the bolt head and let it wick in or pre-soak it first?
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mark731
mark7314d agoTop Commenter
Man, been there too many times myself.
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