Goes on the intake manifold near the firewall.

Mine broke off when I was trying to remove the short hose that attaches to this doohickey.

Edited 18 hours ago18 hr by tadslc

It is a thermostatic switch to close off the manifold coolant line (the tube across the manifolds).

A remedy for over heating the fuel, that did not function well. IMHO

15 hours ago, Terrapin Z said:

It is a thermostatic switch to close off the manifold coolant line (the tube across the manifolds).

A remedy for over heating the fuel, that did not function well. IMHO

Thanks!

Not really sure how that would work but more power to Datsun!

I think I'll just leave it off and install some sort of standard nipple.