09 yaris spits a mystery part out ! Help ID it ??

[Chris2016]

Help all yaris mechanics ! 

My Mrs has a 2009 yaris 1.33vvti ,

I was only supposed to service it ! 

I jacked it up and looked for the oil filter and found a mystery part just sitting on top of the undertray !!

Can anyone help identity it please ??

 

[Catlover]

Looks like it’s a part out of the oil filter.

[bathtub tom]

Looks to me like part of an oil filter too, although very clean? If it's part of a fitted oil filter, then I'd suspect you have no oil pressure. Does the car have a cartridge oil filter, or a replaceable paper element?

 

[Chris2016]

Thanks Catlover & bathtub tom.

It does look like the top of a oil filter but the car has a paper filter .

I am sure it's nothing to with the oil filter, the car runs great and has very low mileage it has had nothing replaced as far as I know and has only ever been touched by the main toyota dealer .

My Mrs has noticed the part seems to have some sort of date stamp on it , the date matches the cars date of manufacture 🤔

[furtula]

How sure you are it's from your car, did you see/hear it fall out?

Is there an O ring in it, or a groove where one would be, if no, then i doubt it's  from a filter.

Personally i think it's been there for a very long time, for example i lost a W5W license plate light in the engine bay, it was still there a year later, also i found some old mechanics rag  in the engine bay, one year after i bought a car.

 

 

I know Avensis tends to loose parts from the AC pulley, i think it was some sort of dampener, so maybe check your pulleys.

[Gerg]

The central threaded portion has an un-threaded part at its end.  Whilst I don't look that hard at these things, I have never noticed an oil filter that has a thread of that design - the filter screws down on its rubber seal rather than becoming fully screwed on via its thread bottoming out.

Also, the metal used is a fairly heavy thickness, a little over-specified for an oil filter!  Also, as per the thread portion, that date code label would be on the inside of an oil filter cartridge, so invisible once made.

I would (wildly) speculate that this might be a vibration damper to overcome some unwanted resonance, so perhaps from an engine mount or pulley wheel?  

[yossarian247]

It's the outer part of aircon compressor pulley. The one below is similar, although not identical:

 

https://www.hexautoparts.com/product/ac-compressor-clutch-replacement-kits-for-2007-2012-toyota-yaris-1700.html

 

Does the aircon still work? I have heard of these falling off before, but can't remember whether or not it's essential to the operation of the air conditioning.

[lani100]

Ac pulley cover

[flash22]

I was first thinking oil filter but it's too heavy a material and it isn't threaded all the way through - its part of a pulley it may have flick up off the road rather than being part of your car

 

Edit. It's a yaris AC compressor clutch outer plate 😐(it's not a clutch)