Sans Bateau
Well-known member
Changed the engine oil in the VP 2003 today, and found the item below in the tray under the engine, it must have fallen off (from somewhere) recently, but where from???
Where has this fallen off from?
- Thread starter Sans Bateau
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Bobc
Well-known member
Your hearing aid (I heard that, pardon)
Phoenix of Hamble
Active member
It could be part of an RF supressor... was possibly previously fixed round a wire of some sort to stop it emitting RF, or completely extraneous and has been lodged quietly somewhere around the engine for years, perhaps since installation, and has just decided to dislodge itself...
It could also be a 'load' of some sort, but, as its looks pretty small, (and therefore not a very big load) for the life of me, I can't think what it would be used for in the engine compartment...
There are certainly another dozen unexpected things it could be, but i'll leave that to other, cleverer people to determine!
It could also be a 'load' of some sort, but, as its looks pretty small, (and therefore not a very big load) for the life of me, I can't think what it would be used for in the engine compartment...
There are certainly another dozen unexpected things it could be, but i'll leave that to other, cleverer people to determine!
nimbusgb
Active member
Could be the coil from a solenoid stop device or a relay ( but the part it came from would have had to have literally exploded! )
Also looks like a radio frequency interference 'choke' so may be off the back of the alternator.
Also looks like a radio frequency interference 'choke' so may be off the back of the alternator.
Phoenix of Hamble
Active member
Ah yes.... I bet its an inductor, which would fit with the Alternator point above
VicS
Well-known member
It does not really look like an engine part to me.
If it is its the inside of something that has fallen apart and is something one would not normally ever see..
Does the Tacho still work OK ?
If it is its the inside of something that has fallen apart and is something one would not normally ever see..
Does the Tacho still work OK ?
Amulet
Active member
Size?
Sans Bateau
Well-known member
25mm x 10mm. It is solid, so would not fit around a wire, the copper wire looks like it has broken, so was attached somewhere. Above where it was found is the alternator and the VP fuse/connector panel.
There is no way it could have fallen from anywhere outside the engine bay.
I should point out, this is no quiz, I really do not have any idea where it came from.
VicS
Well-known member
Sensing coil from a log ?
ProDave
Well-known member
It's an RF choke wound onto a ferrite core.
It would normally be mounted onto a printed circuit board, the two very short wires would normally be a little longer and pass through the board and be soldered.
As to where it's come from, I can't imagine where in or near an engine you would find that.
Start looking for electronic things that are no longer working as you expect them to be.
It would normally be mounted onto a printed circuit board, the two very short wires would normally be a little longer and pass through the board and be soldered.
As to where it's come from, I can't imagine where in or near an engine you would find that.
Start looking for electronic things that are no longer working as you expect them to be.
Sans Bateau
Well-known member
the log is miles away
VicS
Well-known member
+1
I am sure it is nothing on the engine.
Even if its a bit of some electronic gear its unlikely to have escaped from a case or housing unless thats been smashed
Sans Bateau
Well-known member
pvb
Well-known member
I dont disbelieve you but I cannot see how it could have got there.
Aliens...
Sans Bateau
Well-known member
fireball
New member
Must be off the autopilot.
VO5
New member
I dont disbelieve you but I cannot see how it could have got there.
You would be surprised at the ability of inanimate objects to take on a life of their own.
Seriously now, small solid objects like these have an incredible ability to bounce and ricochet into the most unexpected places, ask any clockmaker.
Possibly it was dropped while the engine room access was open, it bounced and ended up in the tray.
boguing
Active member
Could we have another pic where you rotate if up 45 degrees from the right hand end?
Have you cleaned it?
Left end is square, right is rounded with a shiny bit. Core from a solenoid?
As above. What doesn't work?
Have you cleaned it?
Left end is square, right is rounded with a shiny bit. Core from a solenoid?
As above. What doesn't work?
William_H
Well-known member
What is it
For my money it is an RF interference protection choke from some fairly low current drain device. ie it is fitted in the power supply line typically but not limited to flourescent light fittings for 12v. It clearly has been soldered into a printed circuit board and has overheated and become unsoldered.
As said what doesn't work? Whatever it was might have died and been replaced some time back although it looks fairly clean and new? good luck olewill
For my money it is an RF interference protection choke from some fairly low current drain device. ie it is fitted in the power supply line typically but not limited to flourescent light fittings for 12v. It clearly has been soldered into a printed circuit board and has overheated and become unsoldered.
As said what doesn't work? Whatever it was might have died and been replaced some time back although it looks fairly clean and new? good luck olewill
concentrik
New member
.
As others have suggested, it's an RF suppressor (choke) - I think it's more likely to have worked loose from its circuit board by vibration than heating the soldered joints. It probably had no mechanical anchoring to the PCB, relying on the soldered joint only, which after endless flexing due to vibration have parted company from the copper wire. This would have been a series component in the power supply so whatever it came from is no longer working and may have been replaced or discarded ages ago!
As others have suggested, it's an RF suppressor (choke) - I think it's more likely to have worked loose from its circuit board by vibration than heating the soldered joints. It probably had no mechanical anchoring to the PCB, relying on the soldered joint only, which after endless flexing due to vibration have parted company from the copper wire. This would have been a series component in the power supply so whatever it came from is no longer working and may have been replaced or discarded ages ago!