"A" model rudder removal and reinstall.

sreeves · Post by **sreeves** » Thu Nov 03, 2016 5:22 pm

I have to remove my rudder on my 170A for a cosmetic repair of the lower left skin (tailwheel spring break). The removal looks straight forward. But is there a trick on how to reinstall it. You have the three attach points, the top two of which have a bolt (AN4-11A) inserted and a nut (AN365-428). Seems like there should be a washer too but the IPC doesn't show it. There is very very little space to work with once you have the bolt dropped in place to get the nut reinstalled. Anybody found an easy way to do this? And would inserting a washer between the nut and attach point be OK? Not that anyone would notice but me.

bagarre · Post by **bagarre** » Thu Nov 03, 2016 5:59 pm

For initial alignment, I'd make or borrow a couple flap installation tools to help line up the hinges.

For the nut and washer...super glue is your friend. Glue the two together and a tiny dot to glue the nut to the wrench.

sreeves · Post by **sreeves** » Thu Nov 03, 2016 6:13 pm

Thanks!

daedaluscan · Post by **daedaluscan** » Thu Nov 03, 2016 6:57 pm

My mechanic advises me to always wash my nuts.

sreeves · Post by **sreeves** » Thu Nov 03, 2016 7:12 pm

Yep. And its better if you do it than your mechanic.

ghostflyer · Post by **ghostflyer** » Thu Nov 03, 2016 8:37 pm

Never put super glue on your nuts , use grease . It stops corrosion . Use it sparingly to hold washers and nuts in position .

gfeher · Post by **gfeher** » Thu Nov 03, 2016 8:48 pm

A dab of TiteSeal works well too, if you have some. Especially if you need to hold the nut and washer at an odd angle. Its a little more sticky than grease.

sreeves · Post by **sreeves** » Thu Nov 03, 2016 10:02 pm

Thanks for the suggestion guys....keep em coming!

N2625U · Post by **N2625U** » Thu Nov 03, 2016 11:25 pm

sreeves wrote:Thanks for the suggestion guys....keep em coming!

I'm learning too! Don't think I'm the only one.

wabuchanan · Post by **wabuchanan** » Tue Nov 08, 2016 6:09 am

We are in the process of reinstalling the rudder on mine now. The A&P I'm working with used the Jumbo Locking Clamp pliers to hold the bolts and slip them in the hinges. IE: large scale medical hemostats.....They hold the nuts as well to get started.

sreeves · Post by **sreeves** » Tue Nov 08, 2016 2:50 pm

I will try them all!

Kim Purcell · Post by **Kim Purcell** » Sun Nov 13, 2016 7:15 pm

I reinstalled my A rudder last year after restoration. A friend who is an AI helped me and we did use a washer as well as a drilled bolt with castellated nut and cotter pin. I found hemostats worked for getting the bolt in then my small fingers were able to hold the washer and nut in place get them started, the top one is a tight space. A female friend with thin fingers who likes to work on planes would be helpful

- sorry I'm not nearby to help out

The International Cessna^® 170 Association

"A" model rudder removal and reinstall.

"A" model rudder removal and reinstall.

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