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71 Seattle Westy Restoration - Done, Time to go camping
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<blockquote data-quote="Kev946" data-source="post: 459235" data-attributes="member: 19811"><p>Dead easy and loads of posts how to do it. My tip would be to get a digital spirit level and new rubber donuts (4). Mark the end of the torsion bar with an horizontal line in felt pen then you know the original position. Once you pull it out there's no knowing where it was. Also make a mark with a file on both the torsion bar and the spring plate so you can see where the spring plate was in relationship to the torsion bar. Then decide how much you need to raise it. I went +4 splines on the torsion and -4 on the spring plate so gained about 21mm.</p><p></p><p>There's a procedure on VW-Resource</p><p></p><p>Here's the info I used for splines</p><p>early van; 44 inner plines, 48 outer splines.</p><p>therefore; 8.18 degrees rotation per inner spline and 7.5 degrees rotation per outer spline.</p><p>torsion bar to hub centre-to-centre i measured at 445mm (spring plate distance).</p><p>therefore; 63.3mm drop per inner spline and 58.1mm drop per outer spline.</p><p>fine adjustment, counter drop, i.e. 1 inner spline counter acted by 1 outer spline gives 5.2mm drop.</p><p></p><p>Hope this helps</p></blockquote><p></p>
[QUOTE="Kev946, post: 459235, member: 19811"] Dead easy and loads of posts how to do it. My tip would be to get a digital spirit level and new rubber donuts (4). Mark the end of the torsion bar with an horizontal line in felt pen then you know the original position. Once you pull it out there's no knowing where it was. Also make a mark with a file on both the torsion bar and the spring plate so you can see where the spring plate was in relationship to the torsion bar. Then decide how much you need to raise it. I went +4 splines on the torsion and -4 on the spring plate so gained about 21mm. There's a procedure on VW-Resource Here's the info I used for splines early van; 44 inner plines, 48 outer splines. therefore; 8.18 degrees rotation per inner spline and 7.5 degrees rotation per outer spline. torsion bar to hub centre-to-centre i measured at 445mm (spring plate distance). therefore; 63.3mm drop per inner spline and 58.1mm drop per outer spline. fine adjustment, counter drop, i.e. 1 inner spline counter acted by 1 outer spline gives 5.2mm drop. Hope this helps [/QUOTE]
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71 Seattle Westy Restoration - Done, Time to go camping
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