I just picked up a ITR swapped hatch and have discovered a big problem. One of the spark plug holes is stripped.

I am planning on using a Timesert to fix the stripped hole. I have a technical question about which insert to buy.

Basically I need to know the depth of the threaded area in an ITR head. I know the 'reach' of the spark plugs is 0.75"



I don't want to put in an insert that is too long or too short. Can anyone measure the thread depth on a spare head for me? Or post up a picture of a removed head with a spark plug fully installed?

Thanks!

 

well just look at how much carbon if any is on the threaded part, if none then it dosent go below the hole i dont think they do at all so you should be fine with one the same length as the threads on the plug,