TIP NEEDED! - REPAIRING A CORD DOOR "PIANO" HINGE

  • Bill Hummel
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12 Jul 2007 23:29 #7478 by Bill Hummel
Bill Hummel created the topic: TIP NEEDED! - REPAIRING A CORD DOOR "PIANO" HINGE
The doors on my Cabriolet sag. The right one is so bad, it sometimes takes me 4 or 5 times to get it to close right. I have been told that this is because I have worn door hinges.

Has anyone repaired one before? Henry Portz gave me a rough outline as follows.

Dismantle the hinge and lay the pieces on a steel table.
Make sure they are flat.
Then make sure all the nodes lay down on the table.
Line up both halves.
Ream out with a drill that's the same size as the original door pin. 230 thousandth's?
Then over ream a little bigger, say 250 thousandths.
Install a new pin.

Does this sound right? Can anyone add anything else? Do you beat the hinges flat or do you use a press? Is any heat needed?

You know me, I hate reinventing the wheel. I know there's a least half a dozen of you out there who know how to do it.

Dumb Question - (Since I haven't bothered to look yet.) Is the front door hinge on a Custom Beverly the same as on a Cabriolet?

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  • Bill Hummel
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14 Jul 2007 01:34 #7491 by Bill Hummel
Bill Hummel replied the topic: DOOR SAG
My passenger door has sagged ever since I bought this particular Cabriolet. Cabriolet doors are quite long and mine drooped about an inch where the door handle is.

It always takes me 3 or 4 times to get the door to close properly. Now I know why. Look at the pictures of my piano hinges. The one on the left comes from the drivers side. The one on the right is the one causing the problems.



The hinge pin has sheared off in two places! No wonder the passenger door sagged so much. What fooled me is the hinge pin is still in place. Looking at the top of the hinge, I thought everything might be OK. The three pieces are mounted so close to each other, you cannot tell there is a problem without removing the door and the hinge. You can also see the metal plate is bent slightly in the next photo.

I plan to straighten the plates. Line up the three pieces and ream out the hinges to accept a 1/4" rod.

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  • JOEL GIVNER
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14 Jul 2007 12:30 #7496 by JOEL GIVNER
JOEL GIVNER replied the topic:
BILL,

Now that you figured it out, you don't have to second guess Henry.

JEG

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  • Wes Trail
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14 Jul 2007 13:36 #7502 by Wes Trail
Wes Trail replied the topic:
My dad's Cord replica uses a similar hinge for the doors, although it is made of stainless steel. It may not be as correct, but perhaps a stainless pin would be stronger than regular steel. I am still not keen about [anyone] leaning on the doors when open as said before, there is a lot of overhung weight there.

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19 Oct 2007 14:43 #8436 by Bill Hummel
Bill Hummel replied the topic: Door Hinge follow-up
Since I did not have the equipment to straighten the hinges I had it professionally done. Everything worked well. We over-reamed the nodes to accept a 1/4" steel rod.

Doors hang fine now. No sagging. I expect that 1/4" rod to last quite awhile. I do have to shim them a little to bring the doors back a little for proper centering.

My thanks to Henry Portz for the tips. Am sending a couple of 30-inch long 1/4" drill bits your ways as a Thank You. (eBay is so much fun!)

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22 Jul 2008 16:18 #10766 by Bill Hummel
Bill Hummel replied the topic: DRILL BITS
Hey Henry!

I forgot to give you the 30" long 1/4" drillbits that I promised to you last year in Auburn. I am bringing you three of them as thanks for all the help you have given me over the past couple of years.

If you are flying, I guess you can fit these in your checked baggage. If you are not checking a bag, let me know and Iwill mail them to you.

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