What is 24x crank Reluctor?
The Gen III engines (LS1/LS6/LQ4, and early LS2) came with a 24x (24 tooth) reluctor wheel while the Gen IV engines (LS7/LS3/LS9, and later LS2) were fitted with a 58x wheel to give more precise crank position data to the ECU. If it’s black you have a 24x wheel; if the sensor is gray then you have a 58x wheel.
Where does the Reluctor wheel go?
GM LS engines feature a toothed reluctor wheel (also called a tone wheel or tone ring), which is press-fit onto the rear of the crankshaft. This toothed wheel is used by the crankshaft position sensor for ignition timing. In most cases, you can identify a Gen III or Gen IV by the location of the camshaft sensor.
What is the purpose of a distributor mounted pulse generator?
The distributor’s main function is to route secondary, or high voltage, current from the ignition coil to the spark plugs in the correct firing order, and for the correct amount of time.
Is the reluctor wheel on the rear of the crank?
Most aftermarket crankshaft manufacturers sell LS cranks with the wheel already installed, but it’s possible that you bought a crank where the reluctor wheel is sold separately. This isn’t a simple matter of hammering the wheel onto the rear of the crank.
Where is the interference fit on a reluctor wheel?
The reluctor wheel features a series of teeth that provide crankshaft position signals (via a sensor) to the ECM. The wheel interference-fits to the rear of the crank, immediately forward of the No. 5 main bearing. Typically the wheel features about a 0.007” interference fit.
Where is the reluctor wheel on a LS engine?
The reluctor wheel (again, also called a timing wheel or tone wheel) is interference-fit onto the rear of the crankshaft, with no key or other registering device.
Do you need a reluctor wheel for a stroker engine?
If you opt to buy an aftermarket performance crankshaft (let’s say you’re building a stroker engine, for example), the crankshaft may or may not include a reluctor wheel. In either case, pay attention to the number of teeth on the wheel.
The reluctor wheel features a series of teeth that provide crankshaft position signals (via a sensor) to the ECM. The wheel interference-fits to the rear of the crank, immediately forward of the No. 5 main bearing. Typically the wheel features about a 0.007” interference fit.
Is the reluctor wheel part of the crankshaft?
The crankshaft reluctor wheel is part of the crankshaft. The reluctor wheel has seven machined notches, six of which are equally spaced 60 degrees apart. The seventh notch is spaced 10 degrees after one of the 60-degree notches.
If you opt to buy an aftermarket performance crankshaft (let’s say you’re building a stroker engine, for example), the crankshaft may or may not include a reluctor wheel. In either case, pay attention to the number of teeth on the wheel.
What are the notches on the reluctor wheel?
The reluctor wheel has seven machined notches, six of which are equally spaced 60 degrees apart. The seventh notch is spaced 10 degrees after one of the 60-degree notches. The 10-degree notch is used to synchronize the engine position, while the other notches are used to provide cylinder location during a revolution.