13/16" thin wall socket?

[David Knaack]

I'm looking for a 13/16" or maybe 21mm thin-wall socket to change some spark plugs. Does OMG have on, or possibly someone has one they can loan me?

Thanks!

[Rob Townley]

Is there a way to know if a socket is truly thin walled?  What is the outside diameter of the sockets that are too big?

On Sun, Oct 18, 2020 at 12:45 PM David Knaack <david...@gmail.com> wrote:

I'm looking for a 13/16" or maybe 21mm thin-wall socket to change some spark plugs. Does OMG have on, or possibly someone has one they can loan me?

Thanks!

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[Stephen Beck]

Is there a reason that a 13/16" spark plug socket won't work?

Steve

On Sun, Oct 18, 2020, 11:45 AM David Knaack <david...@gmail.com> wrote:

I'm looking for a 13/16" or maybe 21mm thin-wall socket to change some spark plugs. Does OMG have on, or possibly someone has one they can loan me?

Thanks!

--

[David Knaack]

Ok, this turns out to be a simple IO error (Idiot Operator).

There were two different kinds of plugs installed, half 13/16" half 5/8". The smaller plugs are shorter and are recessed into the block, so it wasn't easy to see that they were a different size.

Thanks!

DK

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[Rob Townley]

I am curious.  Was this an old car that the spark plugs had to be heli coiled or does spec list two different sizes?

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[David Knaack]

RX-8 rotary engine, each of the two rotors has two plugs, referred to as Leading and Trailing. The trailing plug has a big raised boss around it where the leading plugs do not, so it seemed like the socket couldn't reach past the boss. The 13/16 plugs stick out another half inch or so, so no problem getting to them.

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