Porsche 914 & 914/6 Tachometers

Front and Center
All Porsche 914
models were delivered with a large 115 mm (4.5 inch) VDO
tachometer,
situated in the center of the dash cluster. The tachs are
black-faced
with white print and
a red-orange needle, although, as with all 1970-1971 Porsche
914 and
914/6 dash cluster gauges, some units had off-white print
(there is no part number differentiation for print color). The
tachometer also houses the high beam
and turn signal indicator(s). Like most Porsche 914 VDO
gauges, the
tachometer is a sealed unit with the mechanism accessible only
through
prying off the molded bezel ring. Problems pervasive to all
914 tachs
include needle bouncing, needle fading, lens fogging, lens
scratching and bezel wear.
Current eBay
listings for Porsche 914 and 914/6 tachometers (compare listed
gauges
with those
pictured on this page to ensure authenticity and model year
utilization):
Porsche
914
and 914/6 Tachometers on eBAY
1970 - 1973 Porsche 914 Tachometers
The 1970-1973 and very
early 1974 Porsche 914 tachometers are commonly referred to as
a
"silver button" or "silver center" gauges, because they each
have a
silver-colored cap covering the needle pivot. These units have
deep
bezel rings and the majority have glass lenses, although the
tachs
installed in late model year 1973 and 1974 914s frequently had
plastic
lenses.
These early Porsche 914 tachs, designated part number 914 641
302 10,
have a
7000 RPM maximum and 5600-5800 redline, regardless of engine
size. As
noted above. some of the very early units had off-white
print (pictures of both print tones provided). As with all
"silver
button"
gauges, the two-piece, painted steel bezel on these units is
prone to
rust. The tachometer illustration reproduced at right is from
the 1972
Porsche
914 owner's manual.
1974 - 1976 Porsche 914 Tachometers
The 1974-1976 Porsche
914 tach models are commonly referred to as "black center"
gauges, because they have do not have the silver-colored cap
covering
the needle pivot found in the earlier style. These units,
bearing part
number 914 641 302 12, have shallow, black-painted steel or
brass (1976
model year) bezel
rings and plastic lenses that are prone to scratching. It is
possible
that some of the later tachometers came from the factory with
glass
lenses, but we have never seen one. These tachs also have a
7000 RPM
maximum with a 5600-5800 RPM redline, regardless of engine
size. For
reference, the tachometer illustration from the 1974 Porsche
914 owner's manual is reproduced at right.
1970 - 1972 Porsche 914/6 Tachometers
Porsche 914/6 models
were all equipped with an 8000 RPM maximum tachometer with a
6300-6500 RPM redline. The Porsche 914/6 tach,
designated part number 914 641 301 10, is the same "silver
button"
style as the early 914 units. In another documentation
mistake, the
tachometer illustration in the Porsche 914/6 owner's manual
(reproduced
at right) shows the redline in the wrong location -- 6400-6600
RPM.
The 914/6 tachometer is nearly identical to the Porsche 911T
tachometer, although the redline is slightly
narrower (6300-6500 RPM v. 6300-6600 RPM) and the Porsche 911T
tach had
either part number 911 641 301 00 or 911 641 301 01, depending
on the
model year (a Porsche 911T tachometer is pictured at bottom
right for
comparison).