c 172 M Nose wheel shimmy

Shimmy on take off shimmy upon landing. Replaced nose wheel tire and rim, shimmed scissor link and retightened scissor link bolts. No more shimmy! Feels so fine when landing not to feel a shimmy!

[@PurserArts]

Im ATPL student and this video help me loads to understand a wheel shimmy thank you

[@keithhoward9238]

Great job on identifying the issue and sharing this with us. I have the same issue with my Piper Tomahawk PA38 112 and plan on replacing my scirror link bushings and bolts to tighten up the loose points for no more shimmy.

[@josephdittrich2006]

Great video! I just had this happen to me for the first time today with a student in the plane. It's good to have a video showing what's happening under the plane when this happens!

[@stonechurch4043]

Thank you gor the video. Some of the old planes I fly do this. I have to pull back on the yoke until I slow to a crawl when i really just want to get in the brakes and get back to the pattern. Such a time waster missing intersections!

[@MJllll]

thank you so much. easy to understand :)

[@mattfromowitz5690]

I’ve had this happen to me quite a few times in the 172S. Usually a bit of back pressure to lighten the load on the nosewheel until you’re slower is sufficient to stop that.

[@svenf1]

Thanks for producing and sharing this video!

[@kamvc72]

Excellent video , visually things got lot easier to understand .

[@chrisambrose8838]

For what it’s worth, my K model did this too and once I put all the right shims in and made sure there was no play in the torque link , it took care of the problem. Also later on it started doing it again with everything tight I replaced the shimmy damper and problem solved. 👍🙋‍♂️🖖🏻

[@JackyAnsa]

Thanks for the video!

[@Sousaboi865]

Butter landing!

[@rodwren7591]

Hey James, great video; have you any objection to me using it in PPL training?

[@JB_Hobbies]

I just experienced this for the first time very recently. Does anyone know if it’s dangerous?

[@mattthompson8487]

This just happened to me on my first solo flight and freaked me out. Thought I broke something so I stuck my phone out the window to see that the gear was still there.

[@wangxg00]

It looks more like a caster shimmy (tire shimmy) than strut shimmy (structure shimmy) from the frequency point of view.

[@A8x8A]

Why is there a vibration ?

[@cornucopiahouse4204]

Ahh you fixed it!

[@joecritch143]

So is it a bad tire or wheel bearing because it only looks like it’s doing it when the weight is transferred to the nose wheel

[@naveensai8739]

Which company tyre is that.?

[@alphasiera1757]

Why does it happens? Not enought air?

[@vrajparekh7520]

Thanks man!

[@farenditoalhabsyi8026]

2021?

[@sorrygtfo]

Thanks bro

[@magnoboavista]

This images are always very usefull! Thankss!

[@kodiak53]

you're welcome it was fun to document

[@penelope8557]

Shimmy, shimmy, ko ko bop, shimmy, shimmy, bop!

[@diggtweet9941]

Thank you so much

[@umeshp.2454]

Wheel shivering as due to cold

[@slendii366]

It's almost like speed wobble on a motorcycle

[@Ajith_gowda]

👏👏🔥

[@greynolds17]

must've been designed by jeep engineers

[@willyuan1]

why does this happen?

[@robertsherertz]

When the suspension compresses it changes the offset and the trail. Might need a new part

[@bennythespaceshipman9324]

Everyone : talking others Me : *i jUsT noTicED i.ts A pRoPElLrT PlEAnq!*

[@tabcreedence6553]

I had a motorcycle that did that

[@polarpenguin8132]

Did you search for this video? It got recommended to me

[@DutchFlightTours]

What is the cause of this? Too low tire pressure?

[@kodiak53]

turned out the the shims in the V link were bad

[@midrartt4153]

In some aircraft nose wheel dampers are available...

[@kodiak53]

Midrar tt The shimmy damper was serviced/rebuilt for the test the fix seemed to come as a result of a balanced front wheel and tire along with the scissor shims.

[@YoussefRashedElox]

You trunmed off the engine while flying!

[@emt8756]

Butter

[@Arradin_]

Recommend after 6 years :v

[@priyanshuraha]

Is this normal?🙄

[@piper0428]

Whats the fix?

[@kodiak53]

The scissor link shims

[@MichaelCarrPilot]

Painful to watch. Mine is doing the same thing.

[@Mattblackaviation787]

What causes it?

[@kodiak53]

torq link shims were shot rebuilt the link after we determined it was not the wheel or tire. It took some doing but we got it and has been fine now for 7 years.

[@lolosudan7126]

Ok nice came

[@devilsoffspring5519]

Man, this shit's just scary.

[@santumondal5730]

This roed is seem to be similar of our village roed 😅

[@Nine-TailedFox4]

Very very annoying. Always have to keep the nose up for an uncomfortably long time on landings.

[@jagoanmahe4070]

Why does the comments seem like bots,

[@gaurangsinhrajput6305]

People in comment talking about flying planes and me who came here for aoutomobile engineering concept

[@faisalawe8014]

😀

[@beurneur737]

Can u make a video on how a shimmy damper works plz ? It'd be very interresting Thx for sharing very helpful To understand

[@Kiddsworld66]

A shimmer dampener is a hydraulic actuator that is bolted perpendicular to the nose landing gear usually, that acts as a shock absorber just like a strut would. To keep the NLG from doing what you just saw. So if your getting this kind of shimmy a maintenance action is most likely required. Be it a simple greasing, adding spacers/washers, or just simply loose hardware, but usually it is the shimmy dampener itself that had failed and is no longer doing it job, which consist of either new o-rings and a servicing of the dampener, or an overhaul of a complete new/serviceable shimmy dampener. Hope this helps! Been an A&P mechanic for 7 years!

[@tim241.]

0:40 clean

[@MonkPetite]

Nice explanation well doen sir. But in the first part of the video it’s very evident that the nose strut is not good. It’s bounces a bit too much. Maybe system inside is a bit worn. Also you may put some more air in than the manual tells you to do. Check the oil level first . Having experience many wheel dances on these planes i came to a conclusion that. The hole reason they start to shimmy is the angle nose strut. That’s where it starts. If that is compressed to much the point of shimmy is nearer than fully extend. Also that strut has to slide in and out easily. Keep it clean. Obviously use the right type of tyre and pressure. Some models tyre are to square on the profile shape that’s no good for these planes. If a shimmy damper is installed check it for stiffness. Try to compare it with a new one. If that’s is not helpful get that play out of the ✂️. Good job and thanks.

[@EEEEEEE354]

Almost all the C-172s ive rented do this. I just keep backpressure until you need to turn off the runway. Yesterday I did a few touch and goes, 1 of them I felt that shimmy. Its extremely uncomfortable. I think you are right about the flaw in the C-172's nose gear design. I never felt this on a Piper Warrior.

[@jamiatulamaislam786]

___________________________________ مولانا محمد عيسيٰ سمون جا جمعي جي ڏينهن جا بھترين بيان ٻڌڻ لاءِ وزٽ ڪندا۔۔۔

[@saifkhan-uz7tx]

Fg

[@ganeshkumarr7111]

முன்புற சக்கரத்திற்க்கு பேரிங்...மற்றும்...புஸ்..மாற்றுங்கள்...உதறல் ஏற்படுகிறது.