Posted Tuesday, December 9, 2008 @ 11:28 PM
Hi All,
In the “metric hardware thread in the maintenance forum we wandered off topic a bit and mentioned CHT gauges. I thought I start a proper thread for those (like me) who are going to install one.
Whilst the supply of suitable gauges is plentiful, I thought I ask some basic questions (again):
What is the correct diameter of the K-type thermo-couple washer to be installed under the spark plug, 14 mm or 16 mm?
Which cylinder should I fit the thermo-couple to? Am I right assuming that #4 (the rear right one) is the hottest of the four?
Is there enough space in the spark plug recess for the thermo-couple without having to machine any of the cylinder head material in the area?
How important is it to install a CHT gauge which is compensated for changes in ambient temperature? I noticed that there is quite a price difference for those…
What other issues have you guys come across?
As always, your feedback is highly appreciated.
BR
Tim
P.S.: The picture of my panel is photo-shopped, I haven’t installed the CHT gauge or slip indicator yet. My RF4D does not have any electrics anymore, hence the available space on eh left hand side of the panel
