1970 windshield hinge removal (1 Viewer)

[Sethro60]

Thanks for all the replies! Heat must be the key. Was worried about firing up the oxy torch next to the windshield, with glass, rubber etc. in close proximity, but ordered the induction heater off Amazon. Will report back

 

[kevos37]

If you're worried about tearing up your paint, a torch and or an induction heater are not going to be kind to the finish.

I have found these items to be very handy. The vessel screwdriver is meant to be tapped on and it has accommodations to use a adjustable wrench to turn it. Soak the bolts with Kroil over night. Insert your JIS screwdriver & tap it till it's seated,. At that point you can try to tighten it before loosening. It helps to have a second set of hands to tap on the screwdriver. This is a slow but sure method.

KevO

 

[WY 72 FJ40]

I used a hand impact driver that others recommended here on mud. Link below. It came with JIS bits. Took some time, but did the job.
Vessel Impact Driver No.250001 https://www.amazon.com/dp/B001WHOV64?ref=ppx_pop_mob_ap_share

 

[Sparkman86]

Plenty of suggestions here but I'll share what worked for me after struggling to get 5 of the 16 screws loose. I got 11 free with Kroil and an impact driver. The others were stubborn.

I used a 1/8 bit to get a pilot hole. The deep screw ears help keep it straight. Then I ran an 11/64 bit through the pilot (left handed if you have it). Sharp, quality bits make a ton of difference in getting a centered hole. No harbor freight specials. Low and slow on the drill bit speed with as much force as can be applied without bending the bit. Chuck it as deep as you can in the drill to shorten the "bendable" length and allow more force.
The last step is an EX-3 or similar sized spiral extractor. This method got all 5 stubborn screws out in a matter of minutes without even breaking a sweat. Chase the captured hinge threads, oil/anti-seize and replace with new city racer stainless.

 

[charliemeyer007]

Cobalt or carbide bits for hard screws. Maybe a Dremel tool with a pointy burr or grind stone to cut into the x so the drill bits aren't doing an interrupted cut when starting.

 

[Wasatch Jay]

Plenty of suggestions here but I'll share what worked for me after struggling to get 5 of the 16 screws loose. I got 11 free with Kroil and an impact driver. The others were stubborn.

I used a 1/8 bit to get a pilot hole. The deep screw ears help keep it straight. Then I ran an 11/64 bit through the pilot (left handed if you have it). Sharp, quality bits make a ton of difference in getting a centered hole. No harbor freight specials. Low and slow on the drill bit speed with as much force as can be applied without bending the bit. Chuck it as deep as you can in the drill to shorten the "bendable" length and allow more force.
The last step is an EX-3 or similar sized spiral extractor. This method got all 5 stubborn screws out in a matter of minutes without even breaking a sweat. Chase the captured hinge threads, oil/anti-seize and replace with new city racer stainless.
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View attachment 3979263

Very glad you got them out so successfully!