Spark Plug Hole Angle?

[Jim]

Does anyone know (for certain) What the hole angle is? I've got a head I need to replace the threads on. Knowing what angle to set my drill press table to would be easier than figuring it out myself. I'm all about not reinventing the wheel.

 

[GLJ]

See post 169 and 170
http://www.xs650.com/threads/an-introduction-and-question.55658/page-9#post-630637

 

[Jim]

So... following the links.... @Paulrxs650 says 30°. That's good enough for me.
Thanks Greg.

 

[RustiePyles]

Jim, before you drill that thing. They actually make a piloted reaming tap for spark plug inserts. I got mine at Autozone for less than $30

 

[RustiePyles]

https://www.autozone.com/test-scan-...ls-spark-plug-thread-repair-system/141511_0_0

 

[Jim]

Jim, before you drill that thing. They actually make a piloted reaming tap for spark plug inserts. I got mine at Autozone for less than $30

Yaknow..... they say it beats the alternative... but gettin' old really sucks. Thanks for the memory jog. Rummaged around and lookie what I found.

 

[Jim]

I only have 1 insert though. Any idea which ones from your link I need to order?

 

[RustiePyles]

I only have 1 insert though. Any idea which ones from your link I need to order?

Insert refill kit
https://www.autozone.com/test-scan-...FupCGABWXoauI5qKBkBoCFZcQAvD_BwE&gclsrc=aw.ds

 

[Jim]

Never mind... figured it out...