Trying to get the heater working
Hey sargentrs:
Pictures say a thousand words, so here are a few that should get your heater up and running-
First one is the connection for the blower motor. It's the single green wire. There is a connecter inline as shown, then the green wire enters the wiring harness that runs across the firewall. You have the blower than can be removed easily so just pull the 4 nuts and it comes out. I've encountered some that needed cleaned and lubed up, then worked fine. Otherwise you can replace it with the right one.
Next is the heater valve and the vacuum reservoir. The valve on my Dart is the original style which you cannot get from a parts store any longer. O'Reilly has a replacement that looks different but should work fine. About $14. Notice the vacuum line connected to it.
Then there is the vacuum tank. The picture shows 1 line connected to it. There are supposed to be 2 lines. The one at the top which I have unhooked goes to the intake(engine vacuum)
Now a look at those two small vacuum lines. One leads to the heater valve, the other to the vacuum tank. The vacuum tank adds capacity so that the system doesn't switch functions under acceleration. Vacuum goes from the tank into the car where the selector panel redistributes it. One line comes back out to operate the heater valve. Here are the two lines where they enter the firewall. Notice one has a green stripe. That goes to the heater valve.
Now a look at the heater hose connections at the firewall:
The outer hose, toward the fender is the outlet. On a slant it leads to the connection on the cylinder head next to the thermostat. The other hose is the inlet and goes through the heater valve and then to the connection on the water pump.
Lastly, the dashpot on the heater box:
As you can see it just bolts on with two bolts and has a hose with a yellow stripe on it.
Let us know if you need more help.
Hey sargentrs:
Pictures say a thousand words, so here are a few that should get your heater up and running-
First one is the connection for the blower motor. It's the single green wire. There is a connecter inline as shown, then the green wire enters the wiring harness that runs across the firewall. You have the blower than can be removed easily so just pull the 4 nuts and it comes out. I've encountered some that needed cleaned and lubed up, then worked fine. Otherwise you can replace it with the right one.
Next is the heater valve and the vacuum reservoir. The valve on my Dart is the original style which you cannot get from a parts store any longer. O'Reilly has a replacement that looks different but should work fine. About $14. Notice the vacuum line connected to it.
Then there is the vacuum tank. The picture shows 1 line connected to it. There are supposed to be 2 lines. The one at the top which I have unhooked goes to the intake(engine vacuum)
Now a look at those two small vacuum lines. One leads to the heater valve, the other to the vacuum tank. The vacuum tank adds capacity so that the system doesn't switch functions under acceleration. Vacuum goes from the tank into the car where the selector panel redistributes it. One line comes back out to operate the heater valve. Here are the two lines where they enter the firewall. Notice one has a green stripe. That goes to the heater valve.
Now a look at the heater hose connections at the firewall:
The outer hose, toward the fender is the outlet. On a slant it leads to the connection on the cylinder head next to the thermostat. The other hose is the inlet and goes through the heater valve and then to the connection on the water pump.
Lastly, the dashpot on the heater box:
As you can see it just bolts on with two bolts and has a hose with a yellow stripe on it.
Let us know if you need more help.