63-67 Instrument Details

1963 TACHOMETER OIL PRESSURE GAUGE
250 to LOW 60# up until Serial
300 HP REDLINE AT 5300 RPM 16532 (approx May 2, 1963)
80#  after Serial 16532
340 to HIGH Same
360 HP REDLINE AT 6500 RPM
Early 1963 340-360HP Tachometers were equipped with a buzzer that sounded at 6500 RPM.
This was discontinued somewhere between serial numbers 104805 and 105708.
Beginning in 1963, the Ammeter does not read actual current but indicates a shunted current.
Actual current through the gauge is less than 2 Amperes when it indicates full scale.
1964 TACHOMETER OIL PRESSURE GAUGE
250 to LOW All 80#
300HP REDLINE AT 5300 RPM
All 80#
365 to HIGH
375HP REDLINE AT 6500 RPM
1965 TACHOMETER OIL PRESSURE GAUGE
250 to LOW All 60#
300HP REDLINE AT 5300 RPM
350HP MED All 60#
REDLINE AT 6000 RPM
365 HIGH All 80#
375 REDLINE AT 6500 RPM
425HP
Early 1965 ammeters were unique as they have no "studs" mounted on the face to act as
mechanical stops for the pointer.  Ammeters with studs began appearing on cluster dates sometime after November 19, 1964.
1966 TACHOMETER OIL PRESSURE GAUGE
300HP LOW 60#
390HP LOW 80#
350HP MID 60#
425/ HIGH 80#
450HP
1967 TACHOMETER OIL PRESSURE GAUGE
300HP LOW 60#
350 MID 60#
390
400
430/ HIGH 80#
435HP
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