BuzzLand

Active Member
Found this underneath the lannie (mid-section not sure exactly) which is on my drive (so not just some random car off the street).

Has something dropped out? Or is it just some random thing?
 

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What on earth is a jiggle-pin?
You find em in thermostats and sometimes in little holes under bellhousings and I daresay other places.
I THINK, only think mind, that they are there to help break the surface tension any oil accumulating at the bottom of the bellhousing with associated crud, may have and thus drop out. In the thermostat they work a bit like a one-way valve and can make it a pain to refill with coolant.
But I am now sitting here with my tin hat on and this is old skool, even for me, so I may not be right about it/them.
anyway, this explains the one in thermostats better.
https://www.uniquecarsandparts.com....use.-,Jiggle Pin,proper filling of the system.

And here are a couple of mentions of the ones under bellhousings, though you have to read through a lot of other stuff too.
http://www.mg-cars.net/mg-midget-sp...g-via-jiggle-pin-hole-2014062322123426080.htm
 
You find em in thermostats and sometimes in little holes under bellhousings and I daresay other places.
I THINK, only think mind, that they are there to help break the surface tension any oil accumulating at the bottom of the bellhousing with associated crud, may have and thus drop out. In the thermostat they work a bit like a one-way valve and can make it a pain to refill with coolant.
But I am now sitting here with my tin hat on and this is old skool, even for me, so I may not be right about it/them.
anyway, this explains the one in thermostats better.
https://www.uniquecarsandparts.com.au/auto_terms_jiggle_pin#:~:text=technical terms use.-,Jiggle Pin,proper filling of the system.

And here are a couple of mentions of the ones under bellhousings, though you have to read through a lot of other stuff too.
http://www.mg-cars.net/mg-midget-sp...g-via-jiggle-pin-hole-2014062322123426080.htm

In the drain hole inside the drip tray in the back of the fridge...
 

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