Sputnik (a.k.a.) Absolute vacuum regulator; see bottom left of Fig 52, attached to STV (suction throttling valve) [purpose is to prevent evaporator core freeze-up when operating at higher elevations]. IGNORE FIG 50 (POA valve is not Corvette)
My early '65 is as shown in figure 51, in which the rectangular regulator mounting flange with the 4 screws is at about 30 degrees clockwise (viewed from above) from being parallel to the fore-aft axis. The bottom cover of the STV valve is held by 5 screws, which seems to allow different orientations (each 72 degrees apart).
This page is from the 1966 Chassis service manual; a closer view in the '65 Corvette shop manual (ref. fig 54) shows the Sputnik mounting flange straight fore-aft.
A thread yesterday about where to attach the vacuum line at the absolute vacuum regulator jogged my memory. At Park City National, I saw a '65 with its Sputnik facing the exhaust manifold (180 degrees from what you'd expect). The owner mentioned that his car had been judged several times without point loss on this item.
So what's the opinions on the factory clocking ?
My early '65 is as shown in figure 51, in which the rectangular regulator mounting flange with the 4 screws is at about 30 degrees clockwise (viewed from above) from being parallel to the fore-aft axis. The bottom cover of the STV valve is held by 5 screws, which seems to allow different orientations (each 72 degrees apart).
This page is from the 1966 Chassis service manual; a closer view in the '65 Corvette shop manual (ref. fig 54) shows the Sputnik mounting flange straight fore-aft.
A thread yesterday about where to attach the vacuum line at the absolute vacuum regulator jogged my memory. At Park City National, I saw a '65 with its Sputnik facing the exhaust manifold (180 degrees from what you'd expect). The owner mentioned that his car had been judged several times without point loss on this item.
So what's the opinions on the factory clocking ?
Comment