Cylinder Head Temperature Gauge
PURCHASE FROM HERE:
CHT GAUGE
CYLINDER HEAD TEMPERATURE GAUGE
Why do you need a CHT gauge on your VW?
If you drive an air cooled VW or infact any vehicle the CHT gauge will tell you a lot about the state of tune of your engine. VW buses with Type 4 engines, especially those with stock fuel injection, have a tendency to run hot. Overheating an air cooled engine will often result in damage to the cylinder head valve seats, the so-called "dropped seat" syndrome that many Bus pilots may have heard about, or experienced first-hand. A properly installed CHT gauge can help prevent this sort of catastrophe.
What is a CHT Gauge?
A Cylinder Head Temperature gauge is the missing gauge on an air-cooled vehicle. Most vehicles are water-cooled, and every water-cooled vehicle has a temperature gauge on the dash which shows the temperature of the engine coolant. You have a warning that the engine may be overheating when your temp gauge heads toward's the red. Without a temperature gauge you may never know if your air cooled VW is running too hot. Since air-cooled vehicles like vintage VW's and Porsche's do not have any coolant inside the engine, we measure the engine heat by reading the temperature of the cylinder head in the spark plug area. This area of the head gets very hot and is an excellent indicator of the operating parameters of the engine as a whole. CHT gauges consist of a sender and the gauge itself. The sender is a thermocouple. The thermocouple in a CHT gauge consists of two wires attached to a ring terminal typically placed under the #3 spark plug. The two wires in the thermocouple are different alloys. Having dissimilar electrical potential when heated, the thermocouple wires create a tiny electrical current. The CHT gauge interprets this electrical signal and displays a temperature.
The CHT gauge wiring consists of a 5 meter long wire which reaches from the engine #3 spark plug in to the rear to the dash. Two additional wires are required for the gauge power. These are connected to ignition live and ground.
The gauge measures in Celsius up to 999.9c
Sensor Ring Size 14mm. (We can supply different sized ring sensors and lengths please ask).
It comes supplied with the 5 meter sensor cable (Fibreglass coated with stainless steel braiding).
Gauge Dimensions : 79mm x 43mm x 25mm.
Panel Cut: 76.5mm x 39.2mm.
Clear 4 Digit RED Led Readout.
12v/24v connection.
Fast Response time: 500 msec.
Easy installation.
Universally Compatible with all vehicles including VW Camper, Beetle, Land Rover, 4x4s, Boats, Trucks, Planes.