Let’s have a look at a detail of a technical solution in the EV conversion process of the Renault 4CV. The handbrake mechanism which spreads the force of the handbrake lever to the two rear drum brakes is mounted on the bottom of the old engine, on the cover under the flywheel (same cover as the Oil pan).
Of course this supporting part needed to go with the ICE engine, so we had to find a new solution in order to attach the handbrake mechanism at the same location.
If you followed my previous posts you might know that we built a custom clutch bell housing between the new motor and the gearbox. So this would be the location where the hand brake mechanism would need to go:
The challenge now was to draw and produce the fitting mounting brackets and parts in order to mount the mechanism onto the new clutch bell housing.
I was very lucky and got everything right in the first attempt. And this is how the mechanism now sits on its new location – which is exactly at the same place as on the combustion engine:
This is an important achievement as all changes regarding brakes etc. would potentially cause a problem with homologation if the modification would be substantial. I have to say that I am really pleased with the result, as the new mechanism sits exactly at the same place as before with the same attachments. Also, it follows my approach to keep things as original as possible!
