Door hinge pin removal

Bodywork, interior and exterior trim and glass, bumpers, etc.
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Richard B
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Door hinge pin removal

#1 Post by Richard B » Sat Sep 26, 2020 11:10 am

What is peoples preferred method of removing stubborn door pins?

Hit with hammer
Heat with torch & hit with hammer
Drill out pin
Angle grinder through brasss washers to spilt into three, then hit with hammer
Richard
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Alec
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Re: Door hinge pin removal

#2 Post by Alec » Sun Sep 27, 2020 7:35 am

Hello Richard,

I have never done this specific task but lots of similar ones.
Soaking with a penetrating fluid such as plus gas for a few days may help.
A good solid hammer and pin punch is required. Heat certainly helps a lot but will damge the paint, which may or may not be a problem for you?
Consider jacking the car as close to where you want to remove the pin (I guess the front as they get much more use generally) on the principle that any hammering is more effective onto a solid base.
The chance of drilling it out accurately is about zero. (Is the pin hardened, probably?)
I don't know what you would gain by removing the washers?
If you have the facilities making a specific screw driven press could work, if there is room to get it in (there should be even if it is done from below.)
The weak area in such a tool is the length of the pushing element which could bend. One answer is to make it much shorter and add lengths of round bar as the pin moves. Mind you if it can be moved an inch or so it probably then will drift out?

Alec
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Richard B
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Re: Door hinge pin removal

#3 Post by Richard B » Sun Sep 27, 2020 12:34 pm

Hi Alec, I will give the blowtorch a try. The car needs a respray, so not too concerned about the paintwork.

I have had to use the grinder before in the case of broken pins. If you cut through the washers and pin, you can separate the pin into three pieces. The two on the car then drift out easily and the centre piece can be drifted out in a vise.
Richard
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MkI PI Saloon, MkII PI Saloon (stalled Restoration), MkI PI Estate, MkIII Spitfire (2500PI), Stag
oh, and bought a TR250

Daughters have Heralds and a Dolomite. Son-in-laws have 2.5's

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Alec
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Re: Door hinge pin removal

#4 Post by Alec » Sun Sep 27, 2020 1:02 pm

Hello Richard,

try and get to a dull red heat if you can. Have you tried just the hammer in case they are not as tight as you suspect?

Alec
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MK1.5 2.5 P.I.
Jaguar MK 2 (Long term restoration.)
Hymer 564 Motorhome.

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Re: Door hinge pin removal

#5 Post by johnnydog » Sun Sep 27, 2020 3:02 pm

Last time I renewed hinge pins on a Triumph (many years ago!), I just used a stout punch and a hammer and they came out without too much effort.
At the time, replacement door pins weren't available from Triumph, but they were identical to those fitted to the Austin 1800, which were available separately!
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Richard B
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Re: Door hinge pin removal

#6 Post by Richard B » Sun Sep 27, 2020 5:43 pm

Yes 2lb club hammer. Shifted a bit then stopped, possibly the wear point on the pin has caught as the hinge is stiff now, whereas it was flippy-floppy :) :shock:

Been playing welding today and Bradley has been making & using a Servo dismantling tool for his MkII 2.5. :roll:
Richard
Compulsive PI'er :)
MkI PI Saloon, MkII PI Saloon (stalled Restoration), MkI PI Estate, MkIII Spitfire (2500PI), Stag
oh, and bought a TR250

Daughters have Heralds and a Dolomite. Son-in-laws have 2.5's

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