What Size Threads in The Wiper Door?
Thread Starter
Pro
Joined: Mar 2009
Posts: 703
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What Size Threads in The Wiper Door?
I just bought a used Wiper Door for my 68 and it has 1/4-20 threads in it but mine has 10-24 threads.. Did they change the thread size or can I assume someone opened up the holes and re-tapped them large on this one?
Drifting
Joined: Jul 2004
Posts: 1,695
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From: Kissimmee fl
Finalist 2021 C3 of the Year - Modified
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St. Jude Donor '07
I think someone opened the holes to 1/4 20. They probably used standard bolts. The originals were 1/4 in. shoulder bolts. They have 10/24 threads.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
INteresting as myh '72 came with 5/16-18 thread bolts about 15 years ago...and not shouldered, understand they should be...but mine work fine...
I cheat though...I slotted the ends of the bolts years ago, then screw them in from the end of the door when it's up....then secure with RTV to keep bolt from backing out....
GOD I"m lazy...
I cheat though...I slotted the ends of the bolts years ago, then screw them in from the end of the door when it's up....then secure with RTV to keep bolt from backing out....
GOD I"m lazy...
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
INteresting as myh '72 came with 5/16-18 thread bolts about 15 years ago...and not shouldered, understand they should be...but mine work fine...
I cheat though...I slotted the ends of the bolts years ago, then screw them in from the end of the door when it's up....then secure with RTV to keep bolt from backing out....
GOD I"m lazy...
I cheat though...I slotted the ends of the bolts years ago, then screw them in from the end of the door when it's up....then secure with RTV to keep bolt from backing out....
GOD I"m lazy...
On to the subject, the wiper door can be repaired with thread inserts to the proper size to allow you to run the OUTRAGEOUSLY priced 10-24 shoulder bolts and correct nylon washers for a free and QUIET movement of your wiper door or you can go with 5/16" and no nylon bushings and WEAR OUT all your wiper actuator linkage in a short time. Your decsion.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Bubba! its YOU!
On to the subject, the wiper door can be repaired with thread inserts to the proper size to allow you to run the OUTRAGEOUSLY priced 10-24 shoulder bolts and correct nylon washers for a free and QUIET movement of your wiper door or you can go with 5/16" and no nylon bushings and WEAR OUT all your wiper actuator linkage in a short time. Your decsion.
On to the subject, the wiper door can be repaired with thread inserts to the proper size to allow you to run the OUTRAGEOUSLY priced 10-24 shoulder bolts and correct nylon washers for a free and QUIET movement of your wiper door or you can go with 5/16" and no nylon bushings and WEAR OUT all your wiper actuator linkage in a short time. Your decsion.
all I did was slot the screws to facilitate repair ease....OH, been a daily driver for some 100k miles ++ now...
Instructor
Joined: May 2006
Posts: 120
Likes: 0
From: Las Vegas Nevada
Well at least I know what size inserts I'll probably end up having to buy. 3 of the 4 shoulder bolts snapped off when I took my door off during my motor swap and cleanup. I'll try a easy out if they make one small enough but chances of success are slim with that small of a bolt. may have to drill out and use inserts. Probably a good idea to slot the things while l'm replacing them for insurance. Thanks mrvette
