Is it possible to replace the road draft tube with a PCV here? I'll be using an Edelbroken 1406 carb. Thanks!
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There was an adapter for the road draft in 62. I may still have one. Will post pix tomorrow.78 Avanti RQB 2792
64 Avanti R1 R5408
63 Avanti R1 R4551
63 Avanti R1 R2281
62 GT Hawk V15949
56 GH 6032504
56 GH 6032588
55 Speedster 7160047
55 Speedster 7165279-
The Lifter Cover ADAPTER , PCV 3/8" Hose and PCV Valve were Used on '62 and '63 V8's and possibly some '61's shipped to NY or Calif. possibly more States.
Also 2 Brl. Stromberg Model WW Carb. with a Base with a Vacuum Tube at the rear for the 3/8" Hose.
The 1964 V8's had a Special Lifter Cover without the Large draft Tube Hole, but with a welded in Fitting to fit a screw-in threaded Carter PCV Valve that flows TO the Carb..
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You could also try to procure Avanti or JT set up.78 Avanti RQB 2792
64 Avanti R1 R5408
63 Avanti R1 R4551
63 Avanti R1 R2281
62 GT Hawk V15949
56 GH 6032504
56 GH 6032588
55 Speedster 7160047
55 Speedster 7165279Comment
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If you put a PCV valve there, without a valley pan, the PVC will suck up oil that is plashing around in the valley. If you put a riser there, and put some coarse steel wool in the riser tube, that will greatly reduce the oil getting sucked up.Comment
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Not sure what you mean there.Originally posted by yeroldad View Post
The Stock Lifter Covers for all Models HAVE a Baffle to restrict the Oil splash that may be sent out the Draft Tube or PCV Adapter.
The only time there is a problem is when you buy a fancy Aluminum Ribbed "dirt catcher" Replacement, then there IS No baffle.StudeRich
Second Generation Stude Driver,
Proud '54 Starliner Owner
SDC Member Since 1967Comment
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Yes, its quite easy. You only need to figure a way to put a fitting for a tube there or a bung for a PCP valve. One way would be to remove the tube from the road draft tube "hat", block off the hole and add a small tube. That's essentially what the factory did when they first went to a PCV valve. As mentioned earlier you need some sort of baffle below the PCV valve so you only draw gasses. I have my valve mounted in the vacuum port on the left rear of the intake manifold and hoses going to the location you pictured and to the front of the engine where the oil filler stand mounts on earlier engines, that location goes directly to the oil pan, so it can draw front both the top and bottom of the engine. I'm using the late '63-4 valley pan that has the fitting in place of the road draft tube or PCV valve adapter. If you go to a PCV valve you really should also go to a closed oil filler cap with a hose going into your air filter assembly too. This way you'll have a closed breather system; you'll be amazed at how much cleaner your engine compartment will stay. I'm also using the late rocker covers with the oil filler caps on each. I have a breather hose going from each to the air cleaner assembly; I'm using '70s Ford breather filters inside the air cleaner assembly to attach the hoses, it seemed easiest, but a simple tube will work.
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I am not a proponent of a PC valve they were only installed to meet the California fabricated emissions standards they do nothing for the engine. The PC ventilation systems introduce exhaust gases and moisture into the engine and just return it to atmosphere via the exhaust pipe. Why not exhaust it via the draft tube and avoid the introduction of these unwanted gases back into the engine. The engineers got it right in the first place.Comment
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The PCV ventilation system does keep the inside of the engine cleaner. Fast forward to today, the emissions systems in modern engines pollute the air much, much less and last much, much longer, probably partly due to keeping the inside of the engine cleaner.Comment
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Many thanks for everyone's help. I'd like to find one of those lifter cover adapters that Rich mentioned. Short of that, I'll just replace the factory tube.
This forum is a treasure.Comment
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To add... The original PCV systems were 'open' systems designed to satisfy the new laws at minimal cost. Most were 'kits' supplied to Studebaker. Yes, they allowed some crankcase fumes to get burned in the combustion chamber. But a proper PCV setup would have sealed oil filler cap(s), and a 'filtered' fresh air intake to the crankcase.
HTIH (Hope The Info Helps)
Jeff
Get your facts first, and then you can distort them as much as you please. Mark Twain
Note: SDC# 070190 (and earlier...)Comment
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Could not find either of the adapters or the lifter cover. May have already disposed of them. Will do a more through search over the weekend.78 Avanti RQB 2792
64 Avanti R1 R5408
63 Avanti R1 R4551
63 Avanti R1 R2281
62 GT Hawk V15949
56 GH 6032504
56 GH 6032588
55 Speedster 7160047
55 Speedster 7165279Comment
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I've decided to cut my draft tube and braze in a PC valve to plug into the carb base. Looks like the carb takes a 3/8ths hose. Not having done this before - on any car - are PC valves all basically the same with one-way internals?Comment
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They are basically the same. I would not advise brazing the PCV valve. It has a spring inside, and the heat from brazing will probably screw the spring up. Braze a fitting, that you can screw the PCV valve into. That way you can change it on occasion, which you should.Comment
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Makes perfect sense, thanks!Comment
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"I am not a proponent of a PC valve..."
This has to be pretty rare sentiment. There are a lot of advantages to cleaner engines & cleaner oil, not to mention the freedom from that "dainty" smell from leaky rings while sitting at the light on a hot summer day with the top down.
The PCV is a significant contributor to why engines can last 200-300 thousand miles these days.'64 R2 back on da road againComment
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