Unknown head adapter

Cox International on Thu Apr 23, 2020 6:33 pm

Have not seen one like this before. Just uses a standard 1/4" glop plug presumably?

dckrsn on Thu Apr 23, 2020 9:17 pm

It says standard plug, but it looks like a turbo head.
I'm guessing late 70's, since the application cites
TeeDees and QRCs, the only TeeDee head equipped
Cox engines at the time. Doesn't that pre-date the
turbo head? Huh...

Bob

Surfer_kris on Fri Apr 24, 2020 12:26 am

I haven't seen that specific head before but there were several companies that made a little "shroud" or compartment around the end of the regular plugs. This was supposed to help with the power loss that regular plugs had on smaller engines. Norvel/Steels had heads like that for instance, see figures below.

So from a distance it looks like it is for a Turbo plug with a regular thread diameter, but there is no cone at the lowest part and the end of the glow plug should not reach or touch that restriction.