'59 A in the Swiss Alps

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Jon Bunin
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Re: '59 A in the Swiss Alps

#106 Post by Jon Bunin »

George Krompecher wrote: Mon Feb 13, 2023 5:06 am OK, good to know.
Next question: the factory workshop mentions a rubber o-ring in addition to the paper gasket for the aluminum side plates (bearing covers). I can't sem to find it on the usual sellers' websites?
The rubber o-ring was discontinued in '57, and replaced with the paper gasket.
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George Krompecher
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Re: '59 A in the Swiss Alps

#107 Post by George Krompecher »

Makes sense now. Thank you.

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Re: '59 A in the Swiss Alps

#108 Post by Jon Bunin »

Jon Bunin wrote: Mon Feb 13, 2023 5:32 amThe rubber o-ring was discontinued in '57, and replaced with the paper gasket.
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Martin Benade
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Re: '59 A in the Swiss Alps

#109 Post by Martin Benade »

It’s funny that sometime in the 60s VW added an o-ring in their tunnel case after some years of paper only. It was in a machined groove and seemed like a good addition. The Porsche was machined the same with and without?
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Vic Skirmants
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Re: '59 A in the Swiss Alps

#110 Post by Vic Skirmants »

Martin Benade wrote: Mon Feb 13, 2023 5:56 pm It’s funny that sometime in the 60s VW added an o-ring in their tunnel case after some years of paper only. It was in a machined groove and seemed like a good addition. The Porsche was machined the same with and without?
Yes; no change in machining.

George Krompecher
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Re: '59 A in the Swiss Alps

#111 Post by George Krompecher »

Next step coming up, with its own question:
I have a new (used) transmission side cover to replace the machined-by-the-bolt one, and a new bearing, ready to be assembled.
Is the cover dimensionally a stable piece? Or do I have to measure the bearing offset to make sure the differential stays aligned?

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Vic Skirmants
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Re: '59 A in the Swiss Alps

#112 Post by Vic Skirmants »

It's probably OK, but it wouldn't be a bad idea to check the bearing offset.

George Krompecher
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Re: '59 A in the Swiss Alps

#113 Post by George Krompecher »

OK will do. Thank you.

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Re: '59 A in the Swiss Alps

#114 Post by George Krompecher »

weird situation, I think I got the wrong bearing. I ordered a 7210 and I got a 7210 BECP, that has axial and some rotational play. This can not be right for a bearing that holds the differential/ring/pignon?
What's more, the one I took out from the new/old side cover is a 6210.

So, what is the correct bearing for a left side differential cover?

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Martin Benade
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Re: '59 A in the Swiss Alps

#115 Post by Martin Benade »

The bearing on the left side is a thrust bearing, make sure it’s facing the right way. I think it’s 7210. It might need some preload to feel right. The one on the right is a normal ball bearing.
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George Krompecher
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Re: '59 A in the Swiss Alps

#116 Post by George Krompecher »

All done. The original left side cover has the same type bearing, so all is well. The replacement I got was on the right side of whichever box it came from.

I took the opportunity to change the torsion bar bushings. Of course the lowest cover plate bolt broke in the shell on the left side. I manage to drill it out without damaging the threads. A placeholder bolt is in while I source correct replacements. I removed the other bolts oh so slowly, with lots of lube and to-and-fro. Then it was a matter of chasing the threads, and they are squeaky clean now.

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Re: '59 A in the Swiss Alps

#117 Post by George Krompecher »

Update:
Gearbox works without weird noises, or crunching. Slight leak by the selector rod, which has no seal.

Cleaned carbs changed the car, although as I use it more, it has developped a mid-range acceleration issue, which I suspect is over-rich mixture.

Saw a nice example by sheer luck today, had to stop for a few shots.
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Puygranier Antoine
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Re: '59 A in the Swiss Alps

#118 Post by Puygranier Antoine »

Nice pictures!

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Re: '59 A in the Swiss Alps

#119 Post by Oliver Langjahr »

George Krompecher wrote: Sun Feb 20, 2022 12:12 pm Is there an article somewhere detailing how the fresh air vents work? The right side one is non-locking, likely worn, whereas the left side one is functional. I have priced parts for these....
I figure I can make a new axle/through nut for it, provided I have the plans

In the same chapter, I have dropped a socket in the hollow body of the door pillar by the vent. Any idea how to fish it out? A magnet has not worked so far.
I believe, everybody who worked on the airvalves lost the sockets. I haven’t found mine on both sides, also. I had the longitudinal open and haven’t found them. It’s a mystery…
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