Re: 52 200 Deluxe in need of input/help to resolve remaining issues
Posted by HH56 On 2020/8/27 15:11:46
Welcome to the forum.
The wiper motor is on the engine side of the firewall and from 51-4 no vacuum for anything factory comes inside the car unless there is a fairly rare optional rear window wiper. The wiper switch on the steering column moves a Bowden type cable which connects at the motor and moves the on/off valve. For a factory windshield washer, it gets vacuum from the end port on the wiper motor. For output a hose would come inside for water but not vacuum. Aftermarket or generically installed washers might have two hoses going to a push button under the dash and one would carry vacuum all the time. With the missing hose piece on the air duct it is possible you are hearing something in the engine compartment being transmitted and somewhat amplified by the time you hear it inside the car.
The temp sensor would normally thread right into the head without any adapter needed but the heads are interchangeable back to 48 and there were different senders used then. If it is an older head that could be one reason the 6464 needs an adapter instead of directly threading. If the gauge moves by grounding the wire at least that part is working. As a quick check on the sender you could try the sender with various water temperatures. Here is a chart a poster worked out at various degrees. The ohm meter would have one lead on the body of the sender and the other on the terminal with nothing else connected.
The instruments work on a nominal 5v which is provided by an instrument voltage regulator. The regulator is the larger rectangular box directly at the bottom center of the instrument cluster with two screw type terminals. On either side of the regulator are smaller rectangular circuit breakers having two studs on each for the terminals. The regulator gets a 6v input on the terminal toward the middle but pulses so that six volts is intermittently turned off and on which results in an AVERAGE value of 5v out at the end terminal and on to the temp and fuel gauges.
If the car has overdrive it will have a plastic knob mounted on a pull out shaft under the dash on the right of the steering column. Anything under the light switch is an accessory. Without a radio it is hard to say what you have because normally there would be a power antenna switch or a rear speaker fader rheostat in that location with a bezel and knob to match the others. Perhaps it had a radio at one time or a previous owner added something.
There is a factory wiring diagram in the literature section if you have not already downloaded it although those usually only show the base radio and heater for accessories. Schematics for the antenna and fader are in the accessories section of the service manual.
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The wiper motor is on the engine side of the firewall and from 51-4 no vacuum for anything factory comes inside the car unless there is a fairly rare optional rear window wiper. The wiper switch on the steering column moves a Bowden type cable which connects at the motor and moves the on/off valve. For a factory windshield washer, it gets vacuum from the end port on the wiper motor. For output a hose would come inside for water but not vacuum. Aftermarket or generically installed washers might have two hoses going to a push button under the dash and one would carry vacuum all the time. With the missing hose piece on the air duct it is possible you are hearing something in the engine compartment being transmitted and somewhat amplified by the time you hear it inside the car.
The temp sensor would normally thread right into the head without any adapter needed but the heads are interchangeable back to 48 and there were different senders used then. If it is an older head that could be one reason the 6464 needs an adapter instead of directly threading. If the gauge moves by grounding the wire at least that part is working. As a quick check on the sender you could try the sender with various water temperatures. Here is a chart a poster worked out at various degrees. The ohm meter would have one lead on the body of the sender and the other on the terminal with nothing else connected.
The instruments work on a nominal 5v which is provided by an instrument voltage regulator. The regulator is the larger rectangular box directly at the bottom center of the instrument cluster with two screw type terminals. On either side of the regulator are smaller rectangular circuit breakers having two studs on each for the terminals. The regulator gets a 6v input on the terminal toward the middle but pulses so that six volts is intermittently turned off and on which results in an AVERAGE value of 5v out at the end terminal and on to the temp and fuel gauges.
If the car has overdrive it will have a plastic knob mounted on a pull out shaft under the dash on the right of the steering column. Anything under the light switch is an accessory. Without a radio it is hard to say what you have because normally there would be a power antenna switch or a rear speaker fader rheostat in that location with a bezel and knob to match the others. Perhaps it had a radio at one time or a previous owner added something.
There is a factory wiring diagram in the literature section if you have not already downloaded it although those usually only show the base radio and heater for accessories. Schematics for the antenna and fader are in the accessories section of the service manual.
Attach file:
(80.21 KB)
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