So the question is: When does an over-temp event on a Thielert and/or Austro require an engine tear down or replacement ?
When the computer says so. :)
An aside, I’ve operated TIO540s in very hot climates and there are times that the oil goes ‘off’ rather rapidly at about the 25-30hr point resulting in low oil pressure and high temps (both still in the yellow but going the wrong way). A precautionary shutdown is company SOP under such circumstances.
If you ejected the coolant you will be lucky (and quick off the mark with a shut down) not to over temp and require a tear down or replacement but the diagnostics report I understand will be the determining factor. I hope you are lucky.
Hi Emir, which engines do you currently have?
Thielert 2.0
Update:
- root cause – broken clamp – by its condition it can be concluded that it was partially broken when installed (different colors along the crack – the beginning is corroded while the rest is new) – probably a mistake of guy who changed the hose
- consequence – coolant started to leak when hose slipped which caused insufficient quantity of coolant in the system which caused rise of temperature
- result – water pump was damaged with too hot coolant which caused additional leakage of coolant through broken pump
- diagnosis – everything is ok with engine, timely shutdown prevented any damage
- fix – changed pump and clamp, tested on ground and in flight – everything is OK
Great news, Emir. A perfect example of twin redundancy over water.
A perfect example of twin redundancy over water.
Actually it was water then mountains and night.
Emir, congrats on the good outcome!
In a SEP this would have turned into a Mayday very quickly, especially at night and over water/terrain.
You won’t notice stuff like a partially broken clamp during preflight checks.
The Thielert 2.0 is a reliable engine but it needs to be maintained properly. Switching to the 2.0S will give you more HP, and a known maintenance history. But since the 2.0S is just a modified 2.0 engine, it won’t have a better safety record.
Emir wrote:
root cause – broken clamp – by its condition it can be concluded that it was partially broken when installed (different colors along the crack – the beginning is corroded while the rest is new) – probably a mistake of guy who changed the hose
What’s the liability situation in a case like this?
