1972-only 914 unique features. Options

[JeffBowlsby]

The 1972 model year 914 has some unique, anomalous features or parts not present on other model years. 1972 seems to be a transitional year for our cars.

Because of their rarity, some of these parts may be hard to find and potentially valuable to the right 914 owner, similar to 912E parts.

post a photo or describe those features or parts here.

[JeffBowlsby]

The rear engine tin piece is unique, because of its need to accommodate the heat riser duct.

http://www.914world.com/bbs2/index.php?showtopic=372328

[JeffBowlsby]

The ignition harness and chassis harness are unique in that they do not provide a circuit from an engine oil temp sender to an oil temp gauge.

1970-71 and 1973-76 models have the circuit in the chassis harness, but the 1972 model does not.

1970-71 models have the oil temp circuit in the ignition harness, which routes through the relay board. 1973-76 models have a dedicated 1-wire cable from the sender to the chassis harness, for the oil temp gauge in the center console.

[JeffBowlsby]

The combo gauge wiring is unique because diodes are required.

http://www.914world.com/bbs2/index.php?sho...p;#entry3176078

[Literati914]

The combo gauge wiring is unique because diodes are required.

http://www.914world.com/bbs2/index.php?sho...p;#entry3176078

'72 is the only year with TWO diodes. Earlier cars have one of them, and later cars have the other I believe.

[dug]

The ignition harness and chassis harness are unique in that they do not provide a circuit from an engine oil temp sender to an oil temp gauge.

I just ran across this annoying omission. I'm doing a six conversion on a Dec 71 built car and of course would like to have oil temp and pressure gauges, but only the wire for the pressure warning light is there.

My harness snorkel is torn up anyway, so I'll be pulling the rear harness out all the way so it's out of the way of the factory six mount I'll be welding in. I'll add those two wires up to the dash before I put it back through the firewall.

[JamesM]

72s (at least all the 72s I have had) have a heater lever that uses the 911 part number press on heater knob and not the 914 part number screw on knob.

Only seen it on 72s

[JamesM]

The ignition harness and chassis harness are unique

72s also have the additional unused circuit for the brake fluid level warning.

[Shivers]

As soon as I got my 72, and took it out for a drive I noticed there was a loose nut behind the wheel. Though I doubt it was only the 72 with this problem.

[JeffBowlsby]

The ignition harness and chassis harness are unique

72s also have the additional unused circuit for the brake fluid level warning.

@JamesM

Is that component #32 on the chassis harness schematic?

[JamesM]

The ignition harness and chassis harness are unique

72s also have the additional unused circuit for the brake fluid level warning.

@JamesM

Is that component #32 on the chassis harness schematic?

Not sure which schematic you are looking at or if the one I have is specific to the 1972 but I believe 32 on the schematic is the brake switch on the master cylinder. It isnt actually a component on the 72s, just the wires added in for a component they never put on the car.

If I recall when I put my car back together and I was trying to figure out what the wires were I found they were a parallel path to the circuit for component 32, an additional way to trigger the dash brake warning light.

similar system to the one used on some later VWs. Digging into it a bit I came across a post of someone installing one of those fluid level sensing caps on the 914.

2 spade connectors coming out of the harness near the brake fluid reservoir:

[JeffBowlsby]

I was referencing the factory 1972 schematic here: https://bowlsby.net/914/WiringHarnesses/doc...4_MAIN_1972.pdf

I think you may be right. I can understand how two additional wires in parallel with those to the circuits for #32, could be activated by a switch monitoring low fluid levels in the reservoir. These two wires are not on the factory 1972 schematic. Nice find.

From the schematic:
32 is Brake Warning Light Switch (master cyl switch)
34 is Parking Brake Contact (ebrake switch)
35 is Stop Light Switch (brake pedal switch)

[76-914]

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[JamesM]

The 1972 model year 914 has some unique, anomalous features or parts not present on other model years. 1972 seems to be a transitional year for our cars.

Because of their rarity, some of these parts may be hard to find and potentially valuable to the right 914 owner, similar to 912E parts.

post a photo or describe those features or parts here.

Had one come up this week that I had forgotten about...

Some 72s came with a strut setup that used early ball joints but late rotors/calipers.

[Literati914]

My '72 's do not have the reservoir level wires.

But, what I'm finding is "early vs late" wiring diagrams show different hook ups at the light switch as well as how the fog light switch interacts with the high/low combo relay. My current '72 project has attributes of both early and late. For instance:

- I have three wires in a single connector (an obvious factory crimp) that plug into pin 56 on the light switch (RD/wh,Bk/bl, & GY) like the late cars.

- Pin K of the light switch shares it's single Gray wire with a factory supplied loop over to pin 58b like the early cars.

- Also, I have two WH/bl wires at the input side of fuse #1 like the late cars and one of them (white with the blue dots) is going there from the Fog relay. Early cars only have one Wh/bl at the fuse and the other would piggy-backing off the White high-beam wire at the Combo relay.

So the '72 can be a real mish-mash.

[worn]

The ignition harness and chassis harness are unique

72s also have the additional unused circuit for the brake fluid level warning.

Mine had that and I bought a reservoir to hook up to it. First time I have heard someone else mention this.

[bdstone914]

@JeffBowlsby
date='Nov 3 2024, 02:09 PM' post='3175650']
The rear engine tin piece is unique, because of its need to accommodate the heat riser duct.

http://www.914world.com/bbs2/index.php?showtopic=372328
[/quote]


I think that was used on 70-72 oil bath air cleaners.

[bdstone914]

72s (at least all the 72s I have had) have a heater lever that uses the 911 part number press on heater knob and not the 914 part number screw on knob.

Only seen it on 72s

you are correct. it was square not round.

[bdstone914]

The 1972 model year 914 has some unique, anomalous features or parts not present on other model years. 1972 seems to be a transitional year for our cars.

Because of their rarity, some of these parts may be hard to find and potentially valuable to the right 914 owner, similar to 912E parts.

post a photo or describe those features or parts here.

Had one come up this week that I had forgotten about...

Some 72s came with a strut setup that used early ball joints but late rotors/calipers.

I don't see how that could work. The strut, rotor and caliper all have a different offset between early and late.

. @jamesm

[dtmehall]

I have a 73 with 72 doors. Other than the window crank was there any other differences in the windows? I'm having trouble getting the windows to seat against the targa top seals.

thanks