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fitting hinges

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christopher small19/03/2016 16:55:09
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483 forum posts
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I need to fit all the hinges on my Cessna, they are the flat plastic ones with a metal pin through them,I have a hinge fitting kit ,but although I only put a thin smear of araldite on the hinge, when I push it in the slot I often get glue on the pin,What can I do to prevent this happening.

Chris

Gary Manuel19/03/2016 17:18:42
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2294 forum posts
1558 photos

A thin smear of vaseline on the bits you DON'T want to stick.

Masher19/03/2016 17:20:26
1109 forum posts
79 photos

Chris

I think the trick is to apply a layer of vaseline to the hinge pin before inserting into the slot. This is a bit fiddly but can be done by using a cocktail stick or similar to apply the vaseline (or grease)

 

It's all about.................timing!

Edited By Masher on 19/03/2016 17:20:52

christopher small19/03/2016 17:35:28
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483 forum posts
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Thanks for that,got some here somewhere, have a go at it tomorrow theres a lot on there to do with flaps as well.

Chris

john stones 119/03/2016 17:58:26
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11640 forum posts
1517 photos

I use thin piano wire to fill the slot with epoxy then fit the hinge, fiddly but jobs a good un wink

John

christopher small19/03/2016 20:25:15
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483 forum posts
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I`ll give that a go as well John,might be better than smearing hinge with epoxy and pushing it in, as all that happens is the glue pushes out.

Have you fitted the windscreen to your Cub?Got to do my Cessna windscreen in the next week.

Chris

bert baker19/03/2016 20:41:47
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1614 forum posts
332 photos

I use 30 mim epoxy,

I get the job ready and test fitt the hinges.

Warm the two epoxy bottles in an old butter container with hot water, to make it flow better.

Useing a cocktail stick I let the epoxy run into the hinge slots and clean of any epoxy from surface, I also, give the hinges a fine smear as well just to prime the surface.

Then push the hinges into place, and chek alighnment.

I do also pin each hinge as well.

 

Edited By bert baker on 19/03/2016 20:43:27

john stones 119/03/2016 20:56:04
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11640 forum posts
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Posted by christopher small on 19/03/2016 20:25:15:

I`ll give that a go as well John,might be better than smearing hinge with epoxy and pushing it in, as all that happens is the glue pushes out.

Have you fitted the windscreen to your Cub?Got to do my Cessna windscreen in the next week.

Chris

Not yet Chris crook

christopher small19/03/2016 20:59:11
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483 forum posts
1 photos

I used to use 30 min epoxy but it used to set too quickly,BUT if a hinge started to stick together you could work it free,where as if its 24 hour epoxy you check it the next day and if its stuck you couldn`t free it.

My epoxy could be too cold,as I always use it at room temperature 16c.I have never pinned a hinge as I have never had one pull out.the hinge rips apart before it will pull out.

Chris

Bucksboy19/03/2016 23:18:36
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578 forum posts
109 photos

Dab some Vaseline on the metal hinge, flash it over with the flame from a lighter. This melts the Vaseline into the hinge and nothing will stick to it, glue the plastic hinge bit as normal.

Former Member20/03/2016 07:24:41

[This posting has been removed]

cymaz20/03/2016 08:11:38
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9317 forum posts
1211 photos

Vaseline is great stuff for hinges. CA doesn't stick to it either. I put a dab of Vaseline either side of a furry hinge when using CA to glue them in- it stops the CA from running down the hinge line.

Steven S20/03/2016 22:47:46
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369 forum posts
193 photos

A hint I picked up somewhere is to cut a drinking straw a couple of inches long, squeeze one end flat and insert it into the hinge slot. Then dab some epoxy into the other end and squeeze that end closed while you run your fingers down the straw, forcing the epoxy cleanly into the slot.

Actually, after running some tests on scrap balsa and using different glues I found that I never could pull any flat hinges out so I am gluing mine in with “Deluxe Super ‘Phatic”, using that new plastic extension nozzle they now supply.

FlyinBrian21/03/2016 20:24:01
661 forum posts
4 photos

Put about a tea spoon of Vaseline into an egg cup and fill with boiling water. Lay out your hinges on a square of kitchen towel. Fold each hinge back on itself and dip the hinge line into the hot Vaseline now floating on the water.

Put the hinge onto the kitchen towel and repeat as necessary.

Edited By FlyinBrian on 21/03/2016 20:24:41

christopher small21/03/2016 20:53:32
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483 forum posts
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Theres some good ideas there,I think I shall have to try out some of these,tried Super Phatic last week ,very strong.

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