- Joined
- Oct 12, 2014
- Messages
- 1,799
- Reaction score
- 1,114
How accurate should I expect an engine gauge be? 1%? 2% 5%?
Never had any trouble with the oil temp gauge in my Hatz until yesterday, when it maxed out at 150° on a hot day when it should have been at least 190°, as it was on the previous flight. Can't think of any scenario that would make my engine run 40° colder than normal, so the gauge is kaput. It's an old Aircraft Spruce branded "Arrow" gauge that may be original to the plane.
A year ago the oil pressure gauge went and I replaced it with a Bosch automotive gauge with no problems. Today I bought the matching temp gauge, figured I'd check it in boiling water, it read 205° or slightly less when it should have been exactly 212°. So, around 3% low. I could exchange it for another one... which might be better... or might be worse.
I know, remember the offset and mark the redline appropriately. I'm just spoiled by the lab grade gauges I use at work.
Never had any trouble with the oil temp gauge in my Hatz until yesterday, when it maxed out at 150° on a hot day when it should have been at least 190°, as it was on the previous flight. Can't think of any scenario that would make my engine run 40° colder than normal, so the gauge is kaput. It's an old Aircraft Spruce branded "Arrow" gauge that may be original to the plane.
A year ago the oil pressure gauge went and I replaced it with a Bosch automotive gauge with no problems. Today I bought the matching temp gauge, figured I'd check it in boiling water, it read 205° or slightly less when it should have been exactly 212°. So, around 3% low. I could exchange it for another one... which might be better... or might be worse.
I know, remember the offset and mark the redline appropriately. I'm just spoiled by the lab grade gauges I use at work.
