After a semi-recent motor swap on my 1980 Elky I seem to have those 2 ,thin ,lines for the opperation of the a/c and heat leftover. Now, after doing a search on this site I found out that one worked the hot water valve and the other to a vacuum source. MY QUESTION IS WHICH LINE GOES TO WHAT? (PURPLE LINE AND GREY LINE).AND WHAT IS THAT VACUUM BULB FOR . ALL HELP APPRECIATED.
I also heard that I could cap off the heater valve one. Is this true? My heater core is leaking at the inlets. This whole thing started after I got everything cleaned up and working .With a A/C new compressor and hoses,and all the necessary brackets. Then when I turn the A/C on , especially at idle, the motor will kill if I let it. So I figured that since I barely have any vacuum to start with, with the a/c operating the vent doors it just sucks the last bit of vacuum from my motor. and I probably have the lines going to the wrong sources. I guess I could try and block off one line and have one going to a good vacuum source. Then switch. But what about the vacuum bulb? I don't know .......any ideas???
I also heard that I could cap off the heater valve one. Is this true? My heater core is leaking at the inlets. This whole thing started after I got everything cleaned up and working .With a A/C new compressor and hoses,and all the necessary brackets. Then when I turn the A/C on , especially at idle, the motor will kill if I let it. So I figured that since I barely have any vacuum to start with, with the a/c operating the vent doors it just sucks the last bit of vacuum from my motor. and I probably have the lines going to the wrong sources. I guess I could try and block off one line and have one going to a good vacuum source. Then switch. But what about the vacuum bulb? I don't know .......any ideas???