pedal cluster roll pin, fixed or not? Options

[mightyohm]

Does anyone know for certain if the roll pins in the bronze bushing kits are any good or not? I read some time ago that they were having quality problems.

Maybe more helpful would be if someone has a pic of the Porsche roll pin vs. the Weltmeister pin. Any obvious differences?

[John]

The roll pin that I had fail (Weltmeister kit from approx. 15 years ago) was a roll pin. (A single thickness of spring steel shaped into a coil).

The roll pin was almost one complete circle, not several wraps as shown in the photos posted in this thread. I would tend to believe that the vintage of the kits with problems was probably way back when my kit was put together (15 years ago), and the problem pins have been addressed.

I have no pictures of my failed pin as it failed some 15 years ago. The pin broke in 2 spots (at the stress concentration on either side of the shaft). I suspect that the bolt I used began to fail due to a sizing issue because it was not an interference fit.

The coiled pins are what the correct part should look like (as shown in the pictures in this thread). These high strength spring steel components are designed to slightly compress when installed (which is why the ends are slightly tapered). This profides for a very tight fit in the hole through the shaft and the clutch arm.

The holes in the shaft and in the clutch arm should be exactly the same size for the coiled pin to perform as intended (not allow any movement between the shaft and the clutch arm).


As far as I know this issue was addressed long ago.

If not, the coiled pins are available at better hardware stores, McMaster Carr, Porsche, or any number of other places.

Luckily, when one works well, you need not worry about it for years.



just my $0.02