rev limiter failure? Options

[dflesburg]

we had a breaking throttle cable this weekend on the 2.0 four.

We did have a rev limiting rotor.

motor reved up to around 7000

not sure why?

do these rev limiters wear out?

Cut out is supposed to be like 5500

[dflesburg]

true.

but I am talking about the neutral condition.

so if the system works off a spring, it could stick.

[Cap'n Krusty]

true.

but I am talking about the neutral condition.

so if the system works off a spring, it could stick.

The "neutral" or default position is one of continuity. Until the RPM rises to the "break" point, the little coil spring is strong enough to hold the connection closed. Above that point, the spring can no longer maintain enough pressure to continue the continuity and the spark can no longer reach the tip of the rotor. Once the RPMs fall below the ability of the spring to hold the contact, the continuity is restored. I've never seen a "breaker" rotor so in need of maintenance that it failed to function, but then I inspect the ignition components of every car that comes through my shop for service every 3000-5000 miles (I lube the felt beneath the rotor, too). I suggest the failure mode of the rotor, other than actual physical breakage and tip corrosion, is a failure of continuity, NOT a failure to lose continuity.

The Cap'n