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Home » Public Forums » GMCnet » Redrilling Drip Rail Mounting Screws (Drip Rail Maintenance)
Redrilling Drip Rail Mounting Screws [message #345224] Sat, 13 July 2019 10:36 Go to previous message
900 Bundles is currently offline  900 Bundles   United States
Messages: 4
Registered: July 2019
Location: Crestview, FL
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All,

Just purchased my 1975 Eleganza II in late May. I'm working to stop water intrusion issues before taking it out for weekend journeys. I've removed the Driver's side drip rail, and in the process twisted the heads off of four screws. At some point in history a PO removed/resealed the drip rails, which is evidenced by the fact that the screws I removed were non-stainless steel countersunk head style screws(#10-20).

To clean out old sealant in the screw holes, I ran a #10-20 tap down a couple of them. I noticed that when I thread in a new screw there is a lot of slop in the hole. I've read about sliding the drip rail down a 1/4" and redrilling new holes...mainly because of the difficulty in drilling out the factory installed screws. Is there a reason why I shouldn't redrill the existing holes, and tap them up in size to say a #12-24 or a 6mm (which is slightly smaller than a 1/4" machine screw)? The four broken screws would not be that difficult to drill through.


How sealant looked after drip rail removal:
http://www.gmcmhphotos.com/photos/data/7231/IMG_2416rz.jpg



Screw used by PO:
http://www.gmcmhphotos.com/photos/data/7231/medium/IMG_2473rz.jpg



Drip Rail cleaned:
http://www.gmcmhphotos.com/photos/data/7231/IMG_2460rz.jpg

Thanks,

Shane

1975 Eleganza II Reaction Arms (Chuck Aulgur's) w/Rear Drums Straight Trac on front bogie wheels only 3.21 Final Drive

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