New pics...
#6
a while back and no one seemed to mention it was an issue. Did I miss something?
#7
Wow, you had so much incorrect information being corrected in that thread it's no wonder no one noticed the PCV connection.
It will work the way it is currently, but it's not the way is should be connected.
It will work the way it is currently, but it's not the way is should be connected.
#8
I dunno but I started this thread https://classicoldsmobile.com/forums...-part-two.html
a while back and no one seemed to mention it was an issue. Did I miss something?
a while back and no one seemed to mention it was an issue. Did I miss something?
The brake booster line didn't have a plastic loom on it, either, when it left the factory. That may look cool, but it prevents easy observation of the condition of that vacuum line. It's one thing to put a loom on a vacuum line that controls the vent doors in the heating system or that connects to the cruise control. Failure of either of those is an inconvenience but not a safety issue. It's another thing to put a loom on the brake booster vacuum hose.
#9
In your previous thread, you said this:
Your friend is right, and Fun71 is correct to point it out. The brake booster should be connected to its own port on the back of the carburetor, and the PCV is connected to a separate port. That's the way it was set up when the car left the factory. It's not a performance issue or better mileage issue, it's a safety issue. The brakes are a safety system. You want there to be as few ways as possible for there to be vacuum loss by the booster. The more tees and fittings and other devices connected to the same vacuum line as the booster, the more ways the booster can fail. In your setup, there are three new ways the booster can fail that weren't there when the car left the factory. There is a tee in the line that wasn't there before, there is a hose running off that tee to the PCV, and there is the PCV itself. Failure by any one of those three, as remote as the possibility might be, would fail the booster and cause a loss of braking ability.
The brake booster line didn't have a plastic loom on it, either, when it left the factory. That may look cool, but it prevents easy observation of the condition of that vacuum line. It's one thing to put a loom on a vacuum line that controls the vent doors in the heating system or that connects to the cruise control. Failure of either of those is an inconvenience but not a safety issue. It's another thing to put a loom on the brake booster vacuum hose.
Your friend is right, and Fun71 is correct to point it out. The brake booster should be connected to its own port on the back of the carburetor, and the PCV is connected to a separate port. That's the way it was set up when the car left the factory. It's not a performance issue or better mileage issue, it's a safety issue. The brakes are a safety system. You want there to be as few ways as possible for there to be vacuum loss by the booster. The more tees and fittings and other devices connected to the same vacuum line as the booster, the more ways the booster can fail. In your setup, there are three new ways the booster can fail that weren't there when the car left the factory. There is a tee in the line that wasn't there before, there is a hose running off that tee to the PCV, and there is the PCV itself. Failure by any one of those three, as remote as the possibility might be, would fail the booster and cause a loss of braking ability.
The brake booster line didn't have a plastic loom on it, either, when it left the factory. That may look cool, but it prevents easy observation of the condition of that vacuum line. It's one thing to put a loom on a vacuum line that controls the vent doors in the heating system or that connects to the cruise control. Failure of either of those is an inconvenience but not a safety issue. It's another thing to put a loom on the brake booster vacuum hose.
#10
I have found this video to be useful. As I recall, you don't have a Quadrajet on your engine, but this would probably still be useful for you to watch as he explains the purpose of all the vacuum ports on a Quadrajet, and it's likely applicable to most replacements. He speaks slowly, and sometimes so slowly that you want to yell at the computer screen, but it's still worth watching.
Last edited by jaunty75; October 14th, 2018 at 08:19 PM.
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