I started getting a ringing sound which seems to be coming from the front of the engine.

- The ringing sound ONLY comes on during IDLING. However, it goes away when power is applied to the engine.
- Checked the fan - no wobbliness, no grinding feel

This is on a new Turner engine installed last year with new water pump (no leaks in weephole), new belt, etc.

I am not familiar with this sound. Has anyone experienced this sound in the past and be able to offer some clues on where to start?

Ringing sound:

Checking the fan:

Thanks in advance!

 

Take the belt off and see if the niose goes away.

 

yep. sounds like a bad idler or alternator bearing.....

 

Thanks guys. I will look into this tomorrow.

 

Yep sounds like an idler pulley, A/C clutch dragging, or an alternator

 

@acg Hey Andrew give me a call after 12:00 tomorrow, I have a spare alternator and some of my old bits from the head gasket job , we can swap some parts around

 

Richard,

Unfortunately, it is a wet day today. I will look into this when weather dries up in the next few days. Will keep you posted. Thx!

 

@acg I will get everything in a single box ready to go, I can come to you when you are ready.

 

I have a Turner in my 03 D2. Two years later the AC condenser pully/clutch/whatever started to fail. I would get various noises under different conditions. New unit and new belt no more noises.

 

Good maintenance items to do anyways. Done mine last year and one of the idlers was really hard to turn. I’m thinking I got a extra 1 mpg just on that one lol