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Old 09-12-2012, 07:40 PM   #1
Dune Country
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Default are door hinges straight

I am starting to fit the doors on the '31 CCPU, I noticed that two of the hinges on the pass side (which had a broken check strap) and one on the drivers side have a slight bend to them, before I go shimming everything should I take the doors back off and straighten the hinges?
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Old 09-12-2012, 08:07 PM   #2
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Default Re: are door hinges straight

With the door on does it line up all the way around and open and close easily ?? If it fits good and the lines are straight ..... don't take it off.
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Old 09-12-2012, 08:23 PM   #3
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Default Re: are door hinges straight

no the doors do not line up, looks like that if the hinges were straight they would better, just don't want to do unnecessary work.
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Old 09-12-2012, 10:01 PM   #4
Tom Wesenberg
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Default Re: are door hinges straight

Can you straighten the hinges by using metal blocks and C clamps? On newer cars we used to stick metal in the hinge and close the door on it to bend the hinge some. Usually it was done to the lower hinge to raise the rear of the door from years of wear and sagging.
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Old 09-13-2012, 07:15 AM   #5
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Default Re: are door hinges straight

Keep in mind the door hinge pins must all be in the same line for operation without binding. If you put some one foot steel rods in the pin holes you can see if they point at each other, indicating the hinges align. A lot easier than lifting a door on and off multiple times.
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Old 09-13-2012, 07:37 PM   #6
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Default Re: are door hinges straight

thanks for the input,pins are tight and not binding , back to the original question.. were the hinges straight on the body side or do they have a slight curve to them?
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Old 09-13-2012, 09:27 PM   #7
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Default Re: are door hinges straight

here is a picture of late 31 ccpu hinges
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Old 09-17-2012, 11:29 AM   #8
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Default Re: are door hinges straight

thanks, that is what I needed
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Old 09-17-2012, 01:25 PM   #9
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Default Re: are door hinges straight

For what it's worth, I'm putting new wood in a 4dr Town Sedan and I was concerned with the problem of the alignment of the hinge pins so I made a .249 rod for aligning the hinges. I can get all three hinges on the rod and then clamp the hinges in place and then drill for the screws/bolts that hold the hinges to the door posts. Misalignment will cause binding of the door.
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Old 09-20-2012, 01:58 PM   #10
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Default Re: are door hinges straight

From what I have read about aligning the doors with shims on the body blocks, this just aligns the rear of the door with the B pillar...right?
So to align with the A pillar (mine are way off), heat and bend the hinges?
I also noticed that most are cast bronze, mine are steel, checked with a magnet, any help?
TIA
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Old 09-20-2012, 04:10 PM   #11
Marco Tahtaras
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Default Re: are door hinges straight

Model A's all had steel hinges. It's not uncommon for hinges to be bent due to owners that believe they are "correcting" a poor door fit and are too lazy or unable to actually correct it instead of weakly camouflaging it. Before ever shimming the body the gap at each hinge pillar should be trued up was well as possible. And yes, this means undoing the damage some previous owner has done to the hinges.

There is more potential with shimming than suggested. See my page on closed car shimming.


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Old 09-21-2012, 11:36 AM   #12
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Default Re: are door hinges straight

thanks for the info and the link,kind of what I figured, looks like I've got my work cut out
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Old 09-21-2012, 12:31 PM   #13
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Default Re: are door hinges straight

It is best to remove the hinges to straighting them but the screws are usually stuck and will not turn. To get the screws out use a acetylene torch with a very small tip, with a small flame heat only the screw head to a bright red, try to not heat the surrounding metal only heat the screw. Keep the screw red hot for 15 or 30 seconds so the heat will have time to travel down the screw. Let the screw air cool until the red goes away then use a squirt bottle and squirt water on it until it is cold. It will now come out very easy with a large screwdriver without any damage to the screw. If it is still stuck you did not get it hot enough so do it again. Do not ever try to turn a red hot screw with a screwdriver it will be soft and the head will twist off every time.
Lay the hinges on a flat surface and it will be obvious which ones are bent. They can be straightened with a anvil and a big hammer.
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