chutney
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Post by chutney on Apr 27, 2015 10:07:03 GMT -8
Hi, I have a 1963 yellowstone. I have taken off the back end and will be trying to put it back together soon. My question is: Do I need to use a "thin" putty tape between the skins where they overlap horizontally? There was something in there when I took it apart. Seems like regular putty tape would be too thick.
Thanks for the help.
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RJ
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Post by RJ on Apr 27, 2015 10:28:43 GMT -8
I'm sure the more experienced cats will chime in soon but as far as I know, there was not any butyl tape where the skins join on these old trailers. Can't remember the name, but they're called Chicago or Pittsburgh joints (named after some city, LOL)? At any rate, they interlock/overlap and that is sufficient to prevent leakage. If you have some type of sealer on the joints, it was probably one of the PO's using some type of sealer. Just my thoughts  |
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Hamlet
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Post by Hamlet on Apr 27, 2015 10:30:13 GMT -8
Nope from here, just the way it folds over.
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John Palmer
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Hi, From a vintage trailer guy located in Santa Ana, CA. It's good to see lots of activity here.
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Post by John Palmer on Apr 27, 2015 18:14:20 GMT -8
If it has a Pittsburg Seam (sheet metal industry term), or as it's called in the RV industry an "S" lock seam, then it just slips together. The seam is on the top piece and the lower piece slides up into the seam. These seams are used on horizontal surfaces, like the front or rear windows.
If however, it's a "lapped seam" as was used on some old trailers, it REQUIRES a sealant between the two pieces. 1/16" by 1" Butyl double sided tape, would be a good choice. This type of seam can be found on the top flat areas.
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mobiltec
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Post by mobiltec on Apr 27, 2015 18:18:23 GMT -8
My 54 Westerner had lap joints instead of locking seams. I used the 1/16 thick putty tape also. Works great. Also used all new screws.
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chutney
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Post by chutney on Apr 28, 2015 8:20:10 GMT -8
Thanks, I think i do have the "lapped seam" joints-the skin edge is flat and the upper piece just lays flat on top of the lower piece.
I will look for the 1/16 tape. I did buy new screws. Now to get it back together! Thanks again.
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