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Vintage Pt-19 Question

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Vintage Pt-19 Question

Post  scigs30 on Sat Jul 07, 2018 11:30 am

I just acquired  an older Pt-19 that is in pretty good shape but is missing the firewall.  It is an older plane with blue wing and yellow fuselage.  The firewall should be blue and I found one but does anyone know what size screws to use to attach the .049 to the firewall?   Here is a internet picture of firewall set up I have.
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Re: Vintage Pt-19 Question

Post  ticomareado on Sat Jul 07, 2018 3:41 pm

The screws in your photo look factory correct for Baby Bee to me.
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Re: Vintage Pt-19 Question

Post  scigs30 on Sat Jul 07, 2018 7:42 pm

I’m sorry that is a picture I found online to show the type of firewall I have.
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Re: Vintage Pt-19 Question

Post  roddie on Sat Jul 07, 2018 8:29 pm

I can't say for sure.. but I would personally try to source some small (#4???) sheet-metal screws that are at least 1/2" long. The screws need to pass cleanly through the four mounting-holes in a Cox .049 Babe Bee engine without binding... but also need to "bite" into the plastic firewall to tighten the engine securely.

Screws of that size aren't easy to find. Some screws that are used to fasten "name-plates" onto plaques/trophies might work..

I am unfamiliar with the vintage model, so be careful with fitting the screws. My PT-19 is the later version that has a product-engine.. rather than the Babe Bee.
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Re: Vintage Pt-19 Question

Post  Kim on Sat Jul 07, 2018 9:00 pm

I think they're #2's. You can order socket head types from Micro Fasteners. I go through a lot of them!
https://www.microfasteners.com/home.php?cat=694
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Re: Vintage Pt-19 Question

Post  ticomareado on Sun Jul 08, 2018 9:56 am

Before you start make sure you've thoroughly cleaned your firewall and inspected for "chalky plastic deterioration syndrome"/ hairline cracks. A coating with WestSystem epoxy with or w/o some sort of fiber re-enforcements may or may not be in order.

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