lndwarrior
Well Known Member
Engine: Lycoming O-235-C1 (low compression)
TSMO: 270 hours
Hours on plugs: 130
Fuel; Half time on 100 LL / half time on autogas
Oil: Aeroshell 100 Plus
Additive: Camguard
All plugs quite similar in appearance. Some slight carbon buildup up on #3 and #4 bottom. The rest have a coating of whitish/yellowish crusty material. All cleaned off easily with a small portable spark plug cleaner.
This service was part of conditional inspection.
Engine seemed to run fine. Never a problem with the engine and high temps.
I'm wondering what the white/yellowish crusty stuff indicates?
https://photos.app.goo.gl/kNGegsyMTtFbaE2k8
https://photos.app.goo.gl/xFmKQKZL9fswH9Ua9
TIA
Gary
TSMO: 270 hours
Hours on plugs: 130
Fuel; Half time on 100 LL / half time on autogas
Oil: Aeroshell 100 Plus
Additive: Camguard
All plugs quite similar in appearance. Some slight carbon buildup up on #3 and #4 bottom. The rest have a coating of whitish/yellowish crusty material. All cleaned off easily with a small portable spark plug cleaner.
This service was part of conditional inspection.
Engine seemed to run fine. Never a problem with the engine and high temps.
I'm wondering what the white/yellowish crusty stuff indicates?
https://photos.app.goo.gl/kNGegsyMTtFbaE2k8
https://photos.app.goo.gl/xFmKQKZL9fswH9Ua9
TIA
Gary
Last edited: