UNGROUNDED EGT PROBE CLAMP TYP

Alcor EGT probes are accurate +/- 25 deg at 1500 deg F. Includes fire sleeve and ring terminal hardware.

• Installation Instructions
• EGT in a Nutshell

Screw-In Mount:
This option provides the neatest installation. Many engines now come with a hole already threaded for a screw-in probe. If not, threaded weld boss P/N 28113 can be purchased to retrofit an engine. Alcor screw-in probes are available in 7/16″-20 UNF thread common in Continentals or 1/4″-18 NPT common in Lycomings. Some probes are available with adjustable depth to accommodate different weld boss heights. The probe tip should be 3/4″ into the tube. Screw-in probes are also available with a 90 deg bend or an 8 deg bend to allow for an engine design that will not accommodate the straight-in type.

* Adjustable depth tip
** Built in radiator
*** Adjustable depth tip and built in radiator

Clamp Mount:
The is the most common option because installation is easy and no welding is required. A hole is simply drilled in the exhaust near the mounting flange. The probe is inserted in the hole and a hose-clamp style clamp secures it in place. Clamps are available in various sizes to accommodate different sized exhaust tubes.

* Built in radiator
** Omega style male plug connector. Does not include fire sleeve.

ALCOR Instruments and Probes

Don’t waste your money on cheap instruments and probes. There is a big difference! Increase engine life and enhance safety through proper monitoring

• Faster responding probes than low dollar alternatives
• Temperature compensated gauges for accuracy all year round at any altitude
• Single gauges monitor one cylinder, dual gauges for twin engine aircraft monitor one cylinder per engine. Add a selector switch to make an economical full engine analyzer. Lighted gauges and custom dials also available!

Alcor: A name you can trust

• Over 50 years’ experience – Designed, manufactured and supported in the USA
• Generous warranty: 3 years for gauges, 5 years for grounded probes, 1 year for ungrounded probes
• FAA-PMA/STC approved for all aircraft with reciprocating engines

Simple installation

• No power required from the aircraft (lighted gauges require power)
• Works even with an electrical failure
• Great for homebuilt or antique aircraft with no electrical system
• Gauges include all mounting hardware
• Standard 2 1/4″ or 3 1/8″ gauge sizes

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