Vent tube
Laughing Gas
Joined: Jan 2008
Posts: 758
Likes: 0
From: Alabama
Hey what is the purpose of that "rode draft tube". I noticed that there was a small puddle of oil on the concrete floor of my shop after I got the 54 cranked and drove it about a mile up the road and back then let it sit in the shop overnight.
Post Fiend
Joined: Jun 2001
Posts: 7,493
Likes: 7
From: Erie, pa
The Road Draft Tube was designed to prevent pressure build up in the oil pan and the valve chest area - The tube worked as designed as long as it was kept cleaned - When the engine ran it also created condensation in those areas that mixed with oil vapors and some of that mix would make its way to the tube and would be deposited across the bottom of the chassis and on the ground.
Laughing Gas
Joined: Jan 2008
Posts: 758
Likes: 0
From: Alabama
The Road Draft Tube was designed to prevent pressure build up in the oil pan and the valve chest area - The tube worked as designed as long as it was kept cleaned - When the engine ran it also created condensation in those areas that mixed with oil vapors and some of that mix would make its way to the tube and would be deposited across the bottom of the chassis and on the ground.
Believe Nothing
Joined: Jun 2004
Posts: 7,519
Likes: 403
From: W. Central FL.
The road draft tube is designed and placed so as to create a negative crankcase pressure.Forward movement of the vehicle creates that negative pressure and draws crankcase fumes from the crankcase and vent those gasses under the vehicle. The air is drawn in through the oil filler, picks up blow by gasses and carries them out the road draft.
Fleet Owner
Joined: Jul 2004
Posts: 27,303
Likes: 1,062
From: NM
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Laughing Gas
Joined: Jan 2008
Posts: 758
Likes: 0
From: Alabama
Thanks Raytasch and Ross for the information. A PCV system is just what I will put on the old girl cause I don't like her to mark her territory all over the place!
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Senior User
Joined: May 2006
Posts: 482
Likes: 0
PVC
Ross where do you find those kits for $10? The ones I have seen are closer to $45.
Jamco Suspension - 49-53 FORD FLATHEAD PCV VALVE KIT Jamco Suspension, Your #1 Source for Hot Rod Brakes and Suspension!
Jamco Suspension - 49-53 FORD FLATHEAD PCV VALVE KIT Jamco Suspension, Your #1 Source for Hot Rod Brakes and Suspension!
Laughing Gas
Joined: Jun 2011
Posts: 1,041
Likes: 54
From: Sterling CO
I had a little trouble finding this link via search so PM'd Ross for it, and when I saw your request I knew straight where the link is... $10 is Ross's cost from napa for all the pieces and parts, not sold as a kit.
https://www.ford-trucks.com/forums/6...or-an-8ba.html
Instructions are for a V-8, I am currently looking at the writeup to adapt it to my straight 6.
https://www.ford-trucks.com/forums/6...or-an-8ba.html
Instructions are for a V-8, I am currently looking at the writeup to adapt it to my straight 6.
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