PIPER COMANCHE SERVICE MANUAL
04/01/09 X - INSTRUMENTS
3G12A
11-48a. Cylinder Head Temperature (CHT) Gauge.
When installed, the cylinder head temperature readings for the CHT Gauge are provided by a CHT probe
installed in the engine cylinder indicated below.
Model
Cylinder No.
PA-24 3
PA-24-250 (Carb.) 3
PA-24-250 (F.I.) 5
PA-24-260 (Carb.) 5
PA-24-260 (F.I.) 5
PA-24-400 4
11-49. Tachometer Indicator.
11-50. General.
The tachometer is connected to the engine accessory by a flexible cable. and provides an indication of
crankshaft speed in resolutions per minute The instrument has a recording mechanism for recording the
time that the engine is in actual operation
11-51 Removal And Replacement.
Refer to Paragraph 11-18.
11-52. Troubleshooting.
See Table XI-IX.