Virginia vehicle safety inspectors are giving me grief about about a
missing part -- the exhaust manifold shroud.
The shroud, also known as the insulator, is a thin piece of aluminum
that bolts on over the manifold itself. There is a hose from the air
intake that fastens to it so that the engine can warm up quicker by
sucking warm air off the manifold instead of cold air from outside the
I have ordered two shrouds from my local Toyota dealership (one
federal, one California emissions), and neither of them came close to
fitting my 1981 22r, carbureted, four speed.
The bolt holes are in the wrong place, and the shroud itself is simply
not big enough. The manifold doesn't look like the headers I've seen
on the internet. None of my records from previous owners suggest that
an aftermarket exhaust has been added to the vehicle.
The nice even layer of rust across the manifold and bolts suggest that
the vehicle has been this way for a long time... and passed the
Virginia safety inspection in this configuration, as well, I presume.
I'm stumped. Any ideas?
1981 pickup, 22r, carbureted, 4 speed, with a motorhome conversion