Post by
tyrodtom »
https://forums.nicoclub.com/tyrodtom-u133407.html
Sun Feb 14, 2010 2:59 pm
If it's been a long time since you've changed you clutch fluid, it could be the heat, but I wouldn't think you'd be getting that much heat this time of year.
The fluid takes on moisture over time, when the fluid get hot the water in it boils, resulting in steam pockets in your line, usually in the line on the firewall where it crosses behind the head. When you step on the pedal you just compress the steam, and get little or no slave cylinder movement. I had the same problem on a circle track 240, I change the fluid every year, plus wraped the line on the firewall with insulation. No more problems, even in July and August.