Discover how to tackle some of the common brake-related problems on an E-Type, ranging from a seized reaction valve to neglected maintenance
THE ALL-ROUND disc brakes on the E-Type require routine maintenance to keep them in good working order, but can still have problems, so we’ve outlined some of the most common ones.
For instance, there’s a reaction valve on the Series 2 and 3, which controls the vacuum for braking. If it’s faulty, braking performance can be poor but routine cleaning and greasing of its piston is recommended, which entails extracting it and quickly cleaning and lubricating it before refitting it. There is the risk of brake fluid loss, which can mean the brakes need to be bled, so it helps to have an extra person to help prevent this, as we discovered when we followed this job at independent Jaguar specialist, Ken Jenkins.
Binding or inoperative brakes are another common issue that arise on E-Types and many classics that see infrequent use. We’ve outlined methods for identifying such problems and more, such as brake discs that don’t run true. Plus, we’ve looked at servicing aftermarket four-pot calipers, which are an improvement over standard ones, but still need routine maintenance to keep them in good working order.
TOOLS
■ Abrasive paper
■ Brake cleaner
■ Copper grease
■ Dial gauge and magnetic stand
■ Drift
■ File
■ Hammer
■ Infrared thermometer
■ Pliers
■ Red rubber grease
■ Screwdrivers
■ Self-locking pliers
■ Sockets/spanners: ½”
■ Wire brush
SERVICING THE REACTION VALVE
