Question about PCV connection
Thread Starter
Pro
Joined: Oct 2009
Posts: 523
Likes: 4
From: Calgary Alberta
Question about PCV connection
Hello All,
I have a question about the PCV connection at the carb or intake manifold. I recently added a PCV valve/breather to my engine and have connected it directly to the full manifold vacuum on the intake.
My carb also has a connection for a PCV or power brakes as it is a Quick Fuel SS750, I've gone ahead and connected the power brake booster to the vacuum connection on the carb.
My question is, does it matter where the PCV is connected? Should I connect the PCV to the carb and the power brakes to the intake manifold or can I leave the connections as they are?
The engine runs fine the way it is now, but I wanted to make sure of the pluses and minuses of these connections.
Any advise would be greatly appreciated.
I have a question about the PCV connection at the carb or intake manifold. I recently added a PCV valve/breather to my engine and have connected it directly to the full manifold vacuum on the intake.
My carb also has a connection for a PCV or power brakes as it is a Quick Fuel SS750, I've gone ahead and connected the power brake booster to the vacuum connection on the carb.
My question is, does it matter where the PCV is connected? Should I connect the PCV to the carb and the power brakes to the intake manifold or can I leave the connections as they are?
The engine runs fine the way it is now, but I wanted to make sure of the pluses and minuses of these connections.
Any advise would be greatly appreciated.
Burning Brakes
Joined: Dec 2008
Posts: 971
Likes: 45
From: Middlesex NJ
Not trying to hyjack the thread but do any of you guys know if the brake booster filter has a particular orientation when installed?
I have always seen the straight fitting being connected to the carb and the 90 degree fitting going toward the brake booster, any idea as to if there is a reason for this?
I have always seen the straight fitting being connected to the carb and the 90 degree fitting going toward the brake booster, any idea as to if there is a reason for this?
Burning Brakes
Joined: Dec 2008
Posts: 971
Likes: 45
From: Middlesex NJ
I have read that there are issues with gas fumes working their way up into the brake booster then condensing and causing failure of the rubber in the booster. This was an engineering change in the later 70's.
I know they didnt show up until the later 70's and since this car sits more I didn't want to see the booster get trashed as we all know how hard it is to replace.
I dont care about originality at all with this car just trying to protect the booster if necessary.
I know they didnt show up until the later 70's and since this car sits more I didn't want to see the booster get trashed as we all know how hard it is to replace.
I dont care about originality at all with this car just trying to protect the booster if necessary.
Last edited by mysixtynine; Jul 18, 2013 at 05:23 PM. Reason: edit
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
I would use the 3/8" fitting on the carb for pcv only so any oily mist over time will be evenly distributed to all cylinders, especially if your manifold fitting is only in one runner. Brake booster can live on a runner if absolutely necessary since it stores vacuum anyway.
Spelled out in their instructions.
http://www.quickfueltechnology.com/I...ons_Rev._1.pdf
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