Why are my rotor bars cracking on my amp?
Turns out it was a vibration problem caused by the sleeve bearings. When we checked out the rotor after removal from the motor, we could find no visible cracks or voids. Then this was verified again, on the dyno, after re-assembly at full load.
What happens when the distributor rotor and cap fail?
Excessive or unusual engine noises Your vehicle may make some very strange noises if the distributor rotor and cap are malfunctioning – specifically because the cylinders will try to fire but fail. You might hear a tapping, clicking, or sputtering sound when the distributor rotor and cap are failing.
What can I use to detect cracked rotor bars?
When placed on the armature or stator core of a motor the growler acts as the primary of a transformer and the armature coils act as the secondary. A “feeler”, a thin strip of steel such as a hacksaw blade or metal filings can be used as the short detector.
What happens to a rotor when the current is low?
When it is in an area of high flux, the magnetic forces on the rotor are unbalanced. Since the current flow through the rotor bar is proportional to slip, at no load when rotor current is low, the bar has virtually no magnetic forces acting on it. The use of these methods will also provide additional clarity to the vibration data.
Turns out it was a vibration problem caused by the sleeve bearings. When we checked out the rotor after removal from the motor, we could find no visible cracks or voids. Then this was verified again, on the dyno, after re-assembly at full load.
Can a cheap brake rotor crack on a light car?
Some cars can crack cheap rotors after just a few days on track, but even light cars can cause “heat checking” on rotors. The heat checks on this slotted rotor are growing, but it still has some life left.
How can you tell if your brake rotors are legit?
A peek at the brake rotors may be one way to tell if its legit or simply a “track inspired build”. Smooth, slotted or even drilled (oh my!) brake rotor designs are not an indication, but small cracks or “heat checking” may be. Track use is very hard on rotors.
When is it time to replace your brake rotors?
Track use is very hard on rotors. Some cars can crack cheap rotors after just a few days on track, but even light cars can cause “heat checking” on rotors. The heat checks on this slotted rotor are growing, but it still has some life left. If you start noticing tiny cracks on your rotors, you may immediately run to replace them, but wait!