Cessna 120 140 engine mount

[6643]

Was it bolted to the firewall when you measured it or tried to fit the engine?

Since both measurements are too tight, I'd guess it's bent, or was repaired without a jig.

???

[bc12d]

It could have been I will try to post pics.

[8281]

I have a mount here in Alabama. I'll measure the bolt hole
spacing later this afternoon and re-post.

[bc12d]

After carefully looking at the engine mount I found that it is bent on one of the arms of the lower mount but not deformed, I think it can easily be repaired.

[6643]

Yeah, all the tubes are supposed to be straight.

Make a template of the mounting points on the firewall and transfer it to a piece of 3/4" plywood. Make another one for the back of the engine. (The mounting for the engine can be found in the overhaul manual.)

Cut out the bent tubes, bolt everything down and weld in new tubes as necessary.

[8281]

The Mount that I have here in Alabama has the correct measurements
and is available if needed!

[bc12d]

IMG_0745.JPG (20.22 KiB) Viewed 3739 times

Here is a photo of the bent engine mount you can see the right side is lower that the left.

[6643]

Have you tried bolting it to the firewall? Can you see a bend in one or more of the tubes?

[bc12d]

No not yet but that will be my next step , the tubes all appear unbent but its obvious the one side is lower than the other, whish the photo was larger as it is clearly visible .

[6643]

whish the photo was larger as it is clearly visible .

Check your PM's