[CHASSIS] Frame Head Replacement Jig

[matumorales]

Hello;

I'm in the process of replacing the frame head of my 1966 type-1 sedan. some previous owner did a lousy job on replacing it and I'm sure this has to be revisited. It's begining to rot anyways and I plan to do the entire frame restoration for good.

However, I realize this is a delicate intervention, and I know that there was a jig blueprint available online some time ago, however, I can't find it anywhere now (small picture of it is attached)

There was also a complete workshop manual in finnish dedicated to the replacement of this component... does somebody still has this .pdf document?

Can somebody give me a hand locating these?

[tzepesh]

I would be interested in the same topic, but for Super frame head replacement.
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[benchracer1]

a while back, maybe a year, hot vw mag had the blueprint for making this tool

[tzepesh]

I tried to contact Hot VWs Mag but there is an issue with the contact form (it does not accept my address no matter what I write in). Hopefully we can get some more info here.
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[67rustavenger]

Here ya go,
https://www.thesamba.com/vw/archives/manuals/local_manufacture/670a.jpg
https://www.thesamba.com/vw/archives/manuals/local_manufacture/670b.jpg
https://www.thesamba.com/vw/archives/manuals/local_manufacture/670c.jpg
Always search the archives. When looking for VW related tools.

Good Luck.
_________________
I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!

There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo!
2003 Astrovan? GFYS again, Xevin!

[tzepesh]

Hm, I never can navigate to that section in archives unless I have a link.
Anyway, I did not find a similar tool for Superbeetle frame head. Is there one?
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[67rustavenger]

[tzepesh]

Thanks for the hint on how to look in the calaog tool. I was looking under Archive instead of Technical. What was the tool number in the catalog, because I still can not find it.
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[Dibaltic]

VW 670 is the name of the tool. It says it on the blue print and the other links that 67rustavenger linked.

When you are in the technical tool listing section you click on the hyperlink to Page 7 (600 series) to find this specific tool.

[tzepesh]

I was asking for the tool number for superbeetle frame head jig. The one without pictures. 670 is the one for beam frame head.
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[tzepesh]

A friend sent me a body repair workshop manual which covers Super Beetles also. There is a pic of a frame jig used for frame head replacement. However there are no dimensions on it. Does anybody have more detailed information on this tool?

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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[VeeDee]

I have access to VW/Sonner jig, similar to the one above, with interchangeble front parts for both frame heads. It is very easy to use and is the way for best results.
Unfortunatly for you, my workshop is in Wolfsburg, Germany.

Sometimes these jigs are offered here in Germany on "ebay" or "ebay-kleinanzeigen" for reasonable prices. But be aware: The jig doesn't do the job alone. Only try to change a frame head if you are a well trained welder! And very often you will need more than a frame head to fix the center of your chassis.

[Tvättbjörn]

[tzepesh]

VeeDee, it would be so good to have the measurements of such a jig. The plans are nowhere to be found, and even if it is a proprietary tool, I think that it hasn't been on production for decades. But I realize that is a big task, worth a few hours. However it would help so many restoring their cars. For the beam front end there is a tool with dimensions, but the jig would make it even easier.
In my case, I am pretty good with welding. more than 10 years ago I changed the frame head on my 1303, but I did not have a jig or dimensions. I measured the old bent frame head and tried to use references from the pans. It is centered, but slightly bent down. I would like to correct this now.
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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[Tvättbjörn]

[tzepesh]

At the Napoleon hat it is at the correct position, but the front of the frame head is down by maybe 10mm. It is not bent sideways, I measured that several times during welding. But somehow the vertical coordinates were not good. Also, I did not have the body on to guide it, and I wouldn't have relied on it because it was bent from an accident (I can just guess that the car was rolled some time, it had the roof on the left side hammered, and the complete front end was crooked).
I have these two pictures to help me, but a jig would make it so much easier and I would have more confidence. I would spend the time to build a jig if I had the dimensions. Problem is that in the second pic, the back looks like the torsion bars housing tubes, but the front looks like the body not the chassis. It puzzles me what I have to measure. I think this mislead me when I did it. I do not understand if dimension A-7 11/16 is to the top or bottom of the frame.

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'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[Tvättbjörn]

Datum line is the top of the straightener frame (Richtbank in German). Measurements are from the top of the straightener frame to the lower side of the chassis / platform because the chassis sits usually on jigs and that is how the measurements are taken.

[tzepesh]

Thank you! That can help me a lot. It was strange how the back end was drawn as the chassis with torsion bars housing and transmission frame horns, and the front with body like sketch. I was mislead that the left side of the drawing would be to the bottom of the body (so top of the frame head)...
So it seems the frame head is actually a bit tilted up.
Then, I guess I have every measurement I need to make a jig or align the chassis properly.
_________________
'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration

[Tvättbjörn]

[tzepesh]

I will measure everything before cutting and refitting. But everything was lined up well per measurements and body (at least till splash panel). Anyway I can only measure from fixed chassis points, not from the floor holes, because I also swapped them at that time and I am quite sure they were not the best fit.
_________________
'74 1303S, L98B Viperngrun (extra glitter), German Look
'64 1200, Sea Blue, under restoration