I'm in the process of installing new engine sensors on a O-360-A1A on my RV-8A during its avionics MLU. The old CHT sensors are the ring type installed around the plug, which will be replaced by a bayonet type screwed into the cylinder head ports.
The original EGT sensors were installed in a way I'm not entirely happy with. Three of them were mounted about equidistant from the head, but the fourth is about an inch or so farther from the head. Also, the probe holes on a couple of them are perpendicular to the centerline, while others are more "swept back" which I prefer. The old sensors did not provide consistent (or no) readings, which may be related to the sharp bends in probe wires, both at the sensors, and where they were folded to shorten their overall length.
Anyway, is it possible to weld a patch over the old holes, and drill new ones that are more consistent in location and sweep? Is this a big enough worry to attempt to modify / fix? Thanks!
The original EGT sensors were installed in a way I'm not entirely happy with. Three of them were mounted about equidistant from the head, but the fourth is about an inch or so farther from the head. Also, the probe holes on a couple of them are perpendicular to the centerline, while others are more "swept back" which I prefer. The old sensors did not provide consistent (or no) readings, which may be related to the sharp bends in probe wires, both at the sensors, and where they were folded to shorten their overall length.
Anyway, is it possible to weld a patch over the old holes, and drill new ones that are more consistent in location and sweep? Is this a big enough worry to attempt to modify / fix? Thanks!