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Having issue removing gear bolt
Posted: Mon Nov 22, 2021 11:34 pm
by seberggelet
I am having issues removing the gear bolt (NAS147-59) on the left gear spring of my C140. I am able to remove the nut on the bottom and the wedges that wedge the gear spring in place, but even then the bolt will not budge when I try to push or pull it up and out. I have tried to take some weight off the gear (gear is off the ground) but haven't got it right. Any suggestions on how to get this one out?
Thanks
Re: Having issue removing gear bolt
Posted: Tue Nov 23, 2021 6:21 am
by 8342
Is it loose?
Try turning it with a wrench to make sure.
Then use a brass punch and a BFH (Big Fat Hammer) to drive it out.
Rick
Re: Having issue removing gear bolt
Posted: Tue Nov 23, 2021 9:19 pm
by 5099
Have you tried Kano AeroKoll penetrating oil? Its old school but AN hardware has a tighter fit than standard auto hardware. I had a similar problem with removing wing attachment bolts on an old C-150. The oil isn’t a cure all but it might help when you use a little persuading.
JMHO, Steve
Re: Having issue removing gear bolt
Posted: Tue Nov 23, 2021 9:27 pm
by 8175
Regarding penetrating oils... you all might be interested in the attached from Machinist's Workshop Magazine. BTW, I have used Mil H 5606 with great results!