PPonk STC

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

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jrenwick
Posts: 2045
Joined: Thu Apr 01, 2004 8:34 pm

Re: PPonk STC

Post by jrenwick »

Karl,

Pponk has photos and graphics here: http://www.pponk.com/HTML%20PAGES/gldr.html that should make it all clear.

Happy New Year!

John
John Renwick
Minneapolis, MN
Former owner, '55 C-170B, N4401B
'42 J-3 Cub, N62088
'50 Swift GC-1B, N2431B, Oshkosh 2009 Outstanding Swift Award, 2016 Best Continuously Maintained Swift
hilltop170
Posts: 3485
Joined: Sat May 06, 2006 6:05 pm

Re: PPonk STC

Post by hilltop170 »

Karl-
Before you start shimming the gear box, remove your gear and have it dimensionally checked to determine if the gear legs are bent. If they are straight, then shim to level before you install the P-Ponk mod.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
Green Bean
Posts: 163
Joined: Tue May 06, 2003 2:13 am

Re: PPonk STC

Post by Green Bean »

Go to the following site: http://www.pponk.com/HTML%20PAGES/exploded_gearbox.html, Pretty visual demonstration of the kit.
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lowNslow
Posts: 1535
Joined: Mon Apr 22, 2002 4:20 pm

Re: PPonk STC

Post by lowNslow »

I guess my concern is if you shim and then install the Pponk and then later, for some reason, are required to replace your gear and not need shims or require more shims - you can't move the Pponk installation. I thought maybe they would have you install it with shims if you needed them or not so you had the latitude to move the shims around (say from under to over the gear).
Karl
'53 170B N3158B SN:25400
ASW-20BL
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