Can anyone identify these spark plug sockets?

[Woody.v8]

 

[wristpin]

May just be the angle but they don' t look deep enough for spark plugs as I know them. No manufacturer's name?

 

[The_Yellow_Ardvark]

Are they O2 sensor or such, or glow plugs.

They look "wrong" to be spark plugs sockets.

 

[slim_boy_fat]

Are those threads running down the interior?

 

[Woody.v8]

No thread on inside, the pic is just one I pulled off the interweb, I know Mac tools did them but I can't find any now, they are a bit unconventional but they are very good, you can get into tight spaces with them.

 

[CompoSimmonite]

Military or aviation tool ?

 

[Woody.v8]

Found them
http://www.lockitsocket.com

 

[the snooper]

Are they O2 sensor or such, or glow plugs.

They look "wrong" to be spark plugs sockets.

Sockets for O2 sensors have a cut out section for the cable

 

[Migmac]

I see they do ones specifically for chainsaws, might get the boss to get one. The plug keys that come with saws nowadays are a bit slack

 

[Shox Dr]

No thread on inside, the pic is just one I pulled off the interweb, I know Mac tools did them but I can't find any now, they are a bit unconventional but they are very good, you can get into tight spaces with them.

I know what you mean. First time I changed the plugs on the Africa Twin (2per cyl) I got the socket stuck in the cam case void. So I turned an odd socket down. The longer one is for Lamaba sensors

 

[normspanners]

glow plugs.

?? big old glow plugs

 

[colnerov]

?? big old glow plugs

Hi, Thermostart plugs were a fair old size. Which is what they are for I would say.

Colin

 

[normspanners]

they are usually easy to get to just after the air filter and not tight I have only ever used a spanner on them .

 

[colnerov]

Hi, I agree and do the same. For some people it another tool they can have in their box.

Colin

 

[knighty]

I've only seen those on the air intake manifold, had one which was tricky to get to

maybe they position them differently on turbo engines ? - I guess they all really need to be in the manifold (mounted to steel vs plastic) but also somewhere where the heat will be evenly distributed over all cylinders?

 

[normspanners]

maybe they position them differently on turbo engines ?

havnt seen them on turbos, coz its too far for the flame /heat to travel and the turbo would stop the heat anyway.

 

[rtbcomp]

I've only seen those on the air intake manifold, had one which was tricky to get to

maybe they position them differently on turbo engines ? - I guess they all really need to be in the manifold (mounted to steel vs plastic) but also somewhere where the heat will be evenly distributed over all cylinders?

I think they work by the flames heating the air, or even getting sucked into the cylinders, rather than the manifold. They only catch fire when the engine is cranking, so there isn't much time to heat the manifold.

 

[normspanners]

They only catch fire when the engine is cranking,

They do in fact a type that pre heats and have a reservoir of diesel about a couple of egg cups full and it gravity feeds, and starts a fire in the manifold, before they actually crank, you used to turn the key to the first position and wait to hear the 'poof' as it ignited -------then it was time to crank.

 

[normspanners]

It was quite entertaining watching some people use easy start and use the thermostarts as the airfilters used to explode, then catch fire !!!

 

[rtbcomp]

I had that setup on a couple of Perkins (4203, 4236). Certainly more efficient and entertaining than glowplugs.