The International Cessna 170 Association

Bruce In order to use the top 2 original springs I had to clean them up quite a bit.This meant taking off about 5 thou on each one. They now measure 0.190" and 0.188". My suggestion for Univair to make them at 0.180" was based on the fact they told me the spec for the longest leaf spr...

Gentlemen Thank you for discussing this problem. I first removed the riveted aluminum 0.063" shim and was able to force the new leaf springs into the available space. Then this thread provided a lot more info, and I decided to take the assembly off and re-install the shim. I made measurements s...

Bruce I just spoke with Rick at Univair. He was kind enough to search through the data, and told me their drawings (he did not say Cessna OEM specs) show the thickness for the main leaf spring of C-170, C-170A and C-170B is 0.312". It's a very busy day for him and he did not have enough time to...

Good idea Bruce. Here's what I just sent to Univair: The C-170 assoc. administrators and I are trying to determine the CORRECT thickness of the main tailwheel LEAF spring for the Cessna 170. NOT the L-19 I just got a set of your PMA'd leaf springs from Aircraft Spruce, and the longest (main) spring ...

Gentlemen I managed to install the new springs today by removing the riveted shim (it's thickness is 0.063"). I measured the new springs (before installation) in the area that's enclosed by the bracket: All 4 are 1.510" wide. Longest : 0.320" thick U0542106 Next : 0.265" U0542105...

THANK YOU Bruce and IADPE! There IS a small square spacer on the bracket. It's warm today so I'll be in the hangar removing it. Computers and I do not play well together - I had tried the 'Search' function and spent hours down that wormhole... (actually learned a lot of other things) Your quick repl...

Good day everyone. We joined this group in the fall when we got #25749. In the late 80's we owned #25770 and were members of the 170 group, but foolishly sold the bird in 1994. The knowledge of the experts was tremendously helpful back then, and I see that tradition is being carried on (and even imp...