Hoses 73 Imperial Lebaron / AC-delete
- Thread starter Dirk
- Start date
Carmine
Old Man with a Hat
I would give serious thought as to whether or not you have wisely chosen the correct old-timer vehicle.
It´s my hobby. And every day when I see the car I fall in love with it again ;-) So yes, I can say, it is the correct vehicle for me.
But I am not a mechanic. And here in the region are not a lot of people I can ask about the technic. And for me as a german it is a little hard to understand the technical manuel.
So please forgive me, when I´m asking silly questions.
But I am not a mechanic. And here in the region are not a lot of people I can ask about the technic. And for me as a german it is a little hard to understand the technical manuel.
So please forgive me, when I´m asking silly questions.
commando1
Old Man with a Hat
Please don't start ripping **** out just because you personally don't want them.
Carmine
Old Man with a Hat
We are all just caretakers. If the system is in/op, just leave it for the next owner who might want it. You'll not see any gains from removal.
Hoses 1 and 2 aren't remotely related to AC. The other two might operate some of the system via vacuum. (no service manual beside me) If you believe one of them is causing a leak, plug it.
Done.
Move back to enjoyment mode.
Hoses 1 and 2 aren't remotely related to AC. The other two might operate some of the system via vacuum. (no service manual beside me) If you believe one of them is causing a leak, plug it.
Done.
Move back to enjoyment mode.
Yatzee
Active Member
What you can safely do is pinch each hose off "in turn" and see what's affected. You may find that the gates in the heater box don't work after pinching off a certain line or the climate control doesn't work at all. A hose may not actually be for the climate system but another function all together. This is the safest way to determine the hose's purpose without ripping everything out.
Carmine
Old Man with a Hat
This is also a good suggestion.
It would help to know what problem you are trying to fix. Mercedes used the same auto-climate function unit, so you might be in a better position to repair than most.
Thx.
The problem is, that nothing functions at all. No heater, no AC, no blower.
I am hopeless to get the complete system running again. I only want a working heater.
So I bridged the hoses of the heater and realised, that the heater core is leaking. I have to replace it. And for that, I have to understand how the system works. And for that I want to get rid of all the unnecessary stuff.
But not today. I´m now going for a drink to a buddy and will have a bottle of Jack Daniels. Great stuff ;-)
The problem is, that nothing functions at all. No heater, no AC, no blower.
I am hopeless to get the complete system running again. I only want a working heater.
So I bridged the hoses of the heater and realised, that the heater core is leaking. I have to replace it. And for that, I have to understand how the system works. And for that I want to get rid of all the unnecessary stuff.
But not today. I´m now going for a drink to a buddy and will have a bottle of Jack Daniels. Great stuff ;-)
Off hand, for hoses 1 & 2 at least, just connect the hoses together to bypass the OSAC valve (or remove the plastic valve and just route the vacuum hose from the carburetor nipple straight to the vacuum advance can on the distributor). That valve was an emission control device that delays acquiring vacuum advance for 25 seconds every time you let your foot off the throttle and then go to accelerate again. It destroys any fuel economy you might otherwise achieve with the vehicle. It was a cheap and stupid device in the first place and Chrysler should have engineered around it in other ways to achieve the desired results.
I believe the other hoses might be associated with the vacuum amplfier used to control the exhaust recirculation valve, but I will try to check later and confirm what it does for sure. Just not certain at this time.
I believe the other hoses might be associated with the vacuum amplfier used to control the exhaust recirculation valve, but I will try to check later and confirm what it does for sure. Just not certain at this time.
You must have auto temp II to control your a/c. You can get a new control servo from Performance Analysis company. They are not cheap, being in the $600 range. If you have an original controller under the hood with the orange base that contains the nipple for attaching the heater hoses, then you will want to replace it anyway. But if you want to eliminate the system, you should either switch to a manual water valve system under the hood to control it and get rid of all the Auto Temp stuff. Or you could swap over to a regular non-auto control system with those parts from another parts car, but it will be a lot of work and you will probably need to lower the dash for better access to electrical stuff.
With a working auto temp system, the most likely reason for it not operating at all is due to a leaking check valve in the bundle of small hoses under the dash.
Given what seems to be you level of mechanical capability, you may want to seriously consider what steps you take next in terms of the a/c system. Even replacing the heater core is no fun at all in those models.
Ripinator
Old Man with a Hat
Dirk: Personally, I would never consider / purchase car with ATC II, because I'm just not up to the task of fixing it.
However, if you are limber and without too many chronic pains, and you are persistent when taking on a repair project, an ATC II repair can be done successfully. Just read Javier's entire thread where he tackled ATC II problems that appear to be very similar to yours. Very impressive! The thread is:
New to me 78 NYB on its way but please Don't tell my wife.
Carmine
Old Man with a Hat
If all he wants is heat, run the hoses directly from the engine to the core, with a ball valve in-between. Run a switch to the fan motor.
Primative, but functional.
Leave the other stuff in place for when Javier's German twin buys the car years from now and we have replicator machines for vacuum check valves.
OR
Since he lives in the land of the Merc Benzo's, an old enthusiast/mechanic might take mercy upon his sole and take a shot at fixing the system... that might also mean the part is less (or more common) than the $600 it costs in the US. Perhaps Auhtözohn keeps it on the shelf.
Primative, but functional.
Leave the other stuff in place for when Javier's German twin buys the car years from now and we have replicator machines for vacuum check valves.
OR
Since he lives in the land of the Merc Benzo's, an old enthusiast/mechanic might take mercy upon his sole and take a shot at fixing the system... that might also mean the part is less (or more common) than the $600 it costs in the US. Perhaps Auhtözohn keeps it on the shelf.
<<If all he wants is heat, run the hoses directly from the engine to the core, with a ball valve in-between. Run a switch to the fan motor.
Primative, but functional.>>
That is what I want to do.
Thx for your support!
Primative, but functional.>>
That is what I want to do.
Thx for your support!
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