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Old 05-12-2003, 03:35 PM   #1
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1952 25' Cruiser
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screwed and riveted

We've noticed alot of screws on our "all riveted" '52 Cruiser. On the exterior they appear in repairs to the belly pan and around many of the window frames. Is it correct to assume that the screws around the windows were originally rivets, and is it good idea to replace them (no leaks currently, but most are rusted/ corroded)? On the interior there are also alot of screws, mainly on the lower panels. The heads are covered in the original Zolatone finish, which makes me wonder if they are original? Sure makes it easier to remove the panels, but should we replace with rivets?
Doug
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Old 05-12-2003, 08:37 PM   #2
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That is a tough call. The screws have probably enlarged the holes. They also will not leave the good clean hole you need for a rivet to seal properly. OTOH leaving them in will cause future problems, they are already beginning to rust. The reaction between the steel and aluminum will eventually destroy both metals and cause leaks. You could replace the screws with stainless ones, the reaction between the metals will be less severe.

If you replace them with rivets you will have to use a larger size (redrill all the holes) to get a good flat surface beneath the head for a good seal or again risk leaks.

The interior ones I would leave alone. If they are sealed beneath the Zolotone the corrosion should be less severe; water will accelerate the corrosion and hopefully they are sealed well enough that they aren't as severe as the outside. You could peel a little back in an inconspicuous area to see how bad it is.

John
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Old 05-13-2003, 05:32 PM   #3
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John,
It makes sense, what you wrote. I noticed that some screws in the belly pan have corroded through the alum. sheets. I think we'll replace exterior screws with stainless steel ones and leave the interior alone. Thanks for helping us think about this.
Doug
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Old 05-14-2003, 06:37 AM   #4
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Nutty.com has a good selection and price on stainless fasteners. I would get large washers for under the head also, especially those on the belly.

John
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Old 05-14-2003, 07:05 PM   #5
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Thanks, John. I'll check out the link.
Doug
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