New Flap Tracks
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
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- Posts: 165
- Joined: Tue Jan 05, 2021 1:34 am
New Flap Tracks
I need new flap tracks & rollers for my 56 170b.
Both flap tracks have significant wear and make 'clunking' noises as they roll through the 40 degrees, catching on wear notches in the tracks.
I'm unable to find the flap tracks or rollers in the parts catalog.
Can anyone assist me in telling me which p/n they are? Also, on which brand/where to purchase?
Is there anything else I need to know/order for my AME to replace these?
Both flap tracks have significant wear and make 'clunking' noises as they roll through the 40 degrees, catching on wear notches in the tracks.
I'm unable to find the flap tracks or rollers in the parts catalog.
Can anyone assist me in telling me which p/n they are? Also, on which brand/where to purchase?
Is there anything else I need to know/order for my AME to replace these?
- Reece
1956 Cessna 170b
Nanaimo, BC Canada
1956 Cessna 170b
Nanaimo, BC Canada
Re: New Flap Tracks
Flap tracks and roller kits are available from McFarlane: https://www.mcfarlaneaviation.com/search/?q=flap+track
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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- Posts: 165
- Joined: Tue Jan 05, 2021 1:34 am
Re: New Flap Tracks
Which ones though? There's tons of options. I can't find the p/n's in the IPCGAHorn wrote: ↑Fri Jan 19, 2024 3:54 pm Flap tracks and roller kits are available from McFarlane: https://www.mcfarlaneaviation.com/search/?q=flap+track
- Reece
1956 Cessna 170b
Nanaimo, BC Canada
1956 Cessna 170b
Nanaimo, BC Canada
Re: New Flap Tracks
McFarlane can likely identify the necessary PNs for you but….. MC0523231-14 is what you need… Four of them.
(Fig 8, Item 45) “Rib Assy”…..PN 0523231
(Fig 8, Item 45) “Rib Assy”…..PN 0523231
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
-
- Posts: 165
- Joined: Tue Jan 05, 2021 1:34 am
Re: New Flap Tracks
I wouldn’t be too worried if the tracks were “worn”. but that’s just me unless of course the wear is silly. More problematic is the lateral wear of the rollers through the flap side arms which will lead to a possible failure flap jam and asymmetry.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS
- Bruce Fenstermacher
- Posts: 10320
- Joined: Tue Apr 23, 2002 11:24 am
Re: New Flap Tracks
Is silly a Canadian measure Jim? Do you know if it is a skosh more or maybe less than "a wee little bit"? We need to know.
CAUTION - My forum posts may be worth what you paid for them!
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Re: New Flap Tracks
Its hard to imagine how the tracks can become worn unless the rollers have been neglected and have frozen along with not lubricating the tracks. If there’s something thats easy to do on a 170, it would be that lubrication hence Reese you might be in for a world of hurt the deeper your task takes you of which I hope is not the case. PM me if you need to borrow the gauge.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS
Re: New Flap Tracks
Ah…you got me Bruce, yes the measure is a variable measure dependant on the amount of quaffing going on
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS
- sfarringer
- Posts: 309
- Joined: Wed Jan 12, 2005 10:49 pm
Re: New Flap Tracks
Just guessing that quaffing is an integral part of the flap track replacement process.
Ragwing S/N 18073
- Joe Moilanen
- Posts: 600
- Joined: Sun Dec 28, 2003 5:45 am
Re: New Flap Tracks
The Maximum flap track wear dimension is .6035. If it is over this dimension anywhere in the track slot they recommend replacement. McFarland sells a gauge for $41.25 ( Part # 950) but I just turned a piece of round stock down on a lathe to these dimensions to periodically check with.
Joe
4518C
Re: New Flap Tracks
I’ve never had to replace one, couldn’t get the gauge to fit anywhere and I actually had a substantial amount of overspray to remove . Plane just crossed 4000 TT and I’m thankful. Looking at the job Im guessing there be something more than a wee quaffing .Just guessing that quaffing is an integral part of the flap track replacement process.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
1953 C170B S/N 25656
02 K1200RS