M20J Nose Gear Door Hinge Replacement

[Flymac]

Have a 78 J...right nose gear door hinge has worn to where there is a good amount of slop-space between all of the hinge feet, allowing forward/backward movement...which seems pretty crazy all of the hinges could have all been worn/narrowed down together and that much.  Oddly no such wear on the left door.  Mooney Part is 550032-008, and around $100.

I found 1 other thread on this topic(vintage forum) on being able to use a standard MIL spec hinge from spruce?  Just comes down to picking proper size and aluminum vs steel?

Anyone replaced either hinge and have already identified appropriate size/material/etc from spruce or such.  Also curious how/why only 1 door hinge would wear like this.  Thanks!

[Guest]

9 minutes ago, Flymac said:

Have a 78 J...right nose gear door hinge has worn to where there is a good amount of slop-space between all of the hinge feet, allowing forward/backward movement...which seems pretty crazy all of the hinges could have all been worn/narrowed down together and that much.  Oddly no such wear on the left door.  Mooney Part is 550032-008, and around $100.

I found 1 other thread on this topic(vintage forum) on being able to use a standard MIL spec hinge from spruce?  Just comes down to picking proper size and aluminum vs steel?

Anyone replaced either hinge and have already identified appropriate size/material/etc from spruce or such.  Also curious how/why only 1 door hinge would wear like this.  Thanks!

Look carefully at the hinge, you may see the Mil part number stamped in the hinge.

Clarence

[jetdriven]

MS2001P4     Aircraft spruce sells it in 3 foot lengths.  2 pieces required. About $50 plus shipping... don't forget the AN470AD4-4 Rivets, you'll about 50 those as well.

[Flymac]

Thanks!

[Flymac]

On 12/7/2016 at 0:48 PM, jetdriven said:

MS2001P4     Aircraft spruce sells it in 3 foot lengths.  2 pieces required. About $50 plus shipping... don't forget the AN470AD4-4 Rivets, you'll about 50 those as well.

By the way, are you saying 2 pieces assuming i do both doors? Otherwise seems like 1, 3 foot section is plenty for 1 door, looks like have to cut it down as well

[jetdriven]

Yeah I didn't read it well.  One 3' piece is good for one door. 

Edited December 11, 2016 by jetdriven

[DaV8or]

Take a small piece of safety wire of whatever gauge fits so that there is still free motion and put it into the gap between the upper and lower hinge. Twist it tight around the hinge pin and trim all but maybe 3/8" off. Problem solved. The forward and backward motion is stopped. Because it is stainless steel wire, it is harder than the aluminum, so it will last a long time. When it gets loose again, do it over in a different place. It will take years between.

That's what I did.

[Cruiser]

for $50 bucks and some labor I would not be messing around with unapproved repairs.

As my A&P I/A once said "That thing fails in flight and you would have paid any price to have it fixed"

[Guest]

I was told that temporary repairs have a habit of becoming permanent.

Clarence