C170 door hinges availability

[MoonlightVFR]

I see posts about hinge repairs and improvised hinge pins and wonder why not just purchase a replacement?

Perhaps there are none.


So my question becomes how many different door hinges have appeared on the C170. From 1948 to 1955-56?

Do 1958 - 1963 Cessna 172 hinges fit C170 retroactively?

What kind of help do we need?

Regards

[bagarre]

http://cessna170.org/forums/viewtopic.p ... door+hinge

..I did purchase a door off a 56 cessna 172 thinking that the doors were
interchangable, hoping to return it to original. Unfortunately the upper hinge on
the 172 is shorter than that utilized on the 170B's...

Thats an old post that leads me to believe the hinges are not interchangeable with the early 172's.

I don't know if the lower hinge is the same on the 172's or even if all 170's have the same upper hinge.

[Bruce Fenstermacher]

I recently discovered that the upper door hinge on the '56 is shorter that the earlier models. It is likely the same as was used on at least the '56 172. And while of course I haven't tried it, it appears to me that the shorter '56 hinge could be used on the 170 if you changed out both the door and the fuselage hinge parts.

IMG_0329.jpg (39.66 KiB) Viewed 5365 times

Above is the early hinge. Notice the fuselage side is tucked under the door side so you can't see the mounting screws. But if you compare the angle of the early hinge mounting holes to that of the two one the '56 they appear to be in the same location.

Above is a '56 upper door hinge. Compare the angle of the two mounting holes in the early hinge to the later hinge and also look at the rivet line. They will be close if not the same.

[johneeb]

Bruce,
Your posting this made me look up the hinges in the Illustrated Parts Catalog. Have a look, the later style right hinge is shown with its part number however there is no reference for the older right hinge and its numbers.

[Bruce Fenstermacher]

Looking at my 170B IPC page 60 is the picture of the left door 20267 to 26995. On page 60 it lists 0511106-14 and -18 as the upper door hinges. On page 62 is the picture of the right door 20267 to 26995. On page 63 it lists 05111106-15 and -19 as the upper door hinges.
Page 63A has a picture of the right door 26996 and on 63C lists 0511257-2 and 0511258-2 as the upper door hinges. There is no page showing or list for parts for the left door 26996 and on. I'd look in the '56 172 IPC if I needed them. (The left hand '56 hinges are 0511257-1 and 0511258-1)

[bagarre]

What does the lower hinge look like on a 172? as that one would have to be changed as well.
Even if the hinge angle is the same, the hinge pins need to align vertically as well.
So, if the 172 hinge pin is moved back an inch or so, the lower hinge would have to me moved back as well.

[Bruce Fenstermacher]

Here is a picture of a '57 posted by Forrest Walton.

The hinges look the same but they are different part numbers. Probably the hinge line angle is different and they do need to be changed in a set of full upper and full lowers for them to work. BTW the arms are Russ Farris whom I clipped out of the image.

polly 006.jpg (63.89 KiB) Viewed 5348 times

[Bruce Fenstermacher]

Actually when you reference part 0511106-36, the lower door side hinge it supersedes to 0511461-1 the same part on the '56. The fuselage side 0411579-4 does not supersede to anything. We'll have to look at these closer next we see a '56 172. Bet their the same. Can figure how the door hinges work.

[johneeb]

Looking at my 170B IPC page 60 is the picture of the left door 20267 to 26995. On page 60 it lists 0511106-14 and -18 as the upper door hinges. On page 62 is the picture of the right door 20267 to 26995. On page 63 it lists 05111106-15 and -19 as the upper door hinges.
Page 63A has a picture of the right door 26996 and on 63C lists 0511257-2 and 0511258-2 as the upper door hinges. There is no page showing or list for parts for the left door 26996 and on. I'd look in the '56 172 IPC if I needed them. (The left hand '56 hinges are 0511257-1 and 0511258-1)

I see now that I was being fooled by the poor illustration showing the screws on the fuselage hinge going through the wrong way. I also notice the bottom hinges for the later (page 63a) hinge is a different number.

[bagarre]

I wonder if they changed hinge positions to accommodate the level stance on the ground with the nose wheel.
The 170 hinge might have cause the door to fall open since it's balanced (mostly) for the tail on the ground (where it belongs).
Just a thought. Need to dig up some photos.

[Roesbery]

Maybe has something to do with why the door stop on the 172s' and 175s' is shorter because of less clearance between the top of the door and the wing bottom.

[N4005V]

I see posts about hinge repairs and improvised hinge pins and wonder why not just purchase a replacement?

Perhaps there are none.


So my question becomes how many different door hinges have appeared on the C170. From 1948 to 1955-56?

Do 1958 - 1963 Cessna 172 hinges fit C170 retroactively?

What kind of help do we need?

Regards

To answer your initial question;
for example from Hill Aircraft
0511106-14 HINGE
(List Price: $ 674.00) Stock Available $ 606.60