damonb
Pre-Flight
I have noticed my 152 develops a whistling sound at high rpms. I have heard something like this before with vacuum lines on cars. However I am developing good vacuum. So if it is a vacuum leak, it is a small one.
Another possibility could be a leak on the air intake. However the engine is developing good power. So if it is the source, it is a small leak.
Are there any other possibilities that could be causing the whistling noise?
Another possibility could be a leak on the air intake. However the engine is developing good power. So if it is the source, it is a small leak.
Are there any other possibilities that could be causing the whistling noise?