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08-07-2014, 07:34 AM | #1 |
Junior Member
Join Date: Jun 2014
Location: Dover Delaware
Posts: 25
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Front spring body welt
I'm slowly working on my 31 coupe, and after reading about installing the front leaf spring, I have a question. Les Andrews book says to glue a piece of body welt to the top leaf and then grease. All the posts I've read say no to this practice. Is there a reason why I shouldn't?
Thanks Zack Last edited by Zack; 08-08-2014 at 03:47 PM. |
08-09-2014, 06:20 AM | #2 |
Junior Member
Join Date: Jun 2014
Location: Dover Delaware
Posts: 25
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Re: Front spring body welt
Any ideas?
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08-09-2014, 06:35 AM | #3 |
Senior Member
Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,513
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Re: Front spring body welt
Yeah, it's called a 'not so good' idea. Model-Ts used leather, and this practice was continued on the EV8 cars, but it serves no useful purpose on a Model-A if the spring is installed correctly.
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08-09-2014, 02:53 PM | #4 |
Senior Member
Join Date: May 2010
Posts: 4,179
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Re: Front spring body welt
Hi Zack
FWIW: A front & rear spring can be thought of similarly to a horizontal wood structural beam made up of stacked, flat, horizontal 2x6's, connected together with one bolt in the center of the beam & center of the span.. When a bouncing load is applied, only the "ends" of the stacked 2xs's slide horizontally in shear. Similarly, if there were shear or horizontal sliding between leaves in the center of a spring, the center bolt would be sheared or cut, just like cutting a piece of wire with a pair of snips; hence, like in structural beams, there is no shear in the center of a beam. The center spring bolt of the front & rear springs needs to be in a "fixed" position held firmly by the square hole in the cross member. If this center spring bolt does "not" move, nor the part of the top spring leaf immediately adjacent to the bolt: A. Why grease it? B. Why pad it? C. Just tighten it firmly with the "U" bolts & it will not move nor squeak. Hope this helps. |
08-09-2014, 03:22 PM | #5 |
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Join Date: May 2010
Location: Lynden, Wa
Posts: 3,552
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Re: Front spring body welt
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Mike
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