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01-15-2004, 12:38 AM
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#1 |
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Registered User
Join Date: Feb 2002
Posts: 46
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283 question
A friend of mine has a 283 when we took the intake manifold off we saw a little cylinder type thing that is on the back of the block in the lifter valley and has a hose that comes out behind the distributor and plugs into the carb. What is it and can it be removed. Thanks
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01-15-2004, 12:41 AM
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#2 |
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Registered User
Join Date: Nov 2003
Location: northeast alabama
Posts: 256
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I think that is called a ventilator, they used those before the invented pcv valves
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01-15-2004, 12:44 AM
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#3 |
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Don't say "Oops!", Doctor
Join Date: Nov 2003
Location: Houston, TX
Posts: 677
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This thing was in the lifter valley? I mean, it was completely enclosed when the intake manifold was on the engine, right? How did the hose route through the block or intake to make its way to the carb?
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'Mutt 1968 CST LWB: R.I.P. 1967 Chevelle: TPI 454 beast 1967 C10 SWB: Claimed when Bumpster didn't put it on his list |
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01-15-2004, 12:46 AM
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#4 |
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Registered User
Join Date: Feb 2002
Posts: 46
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in went to the back of the block than behind the distributor there was like a 45 degree angle with a nipple and the hose connected to that and screwed into the back of the carb
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01-15-2004, 12:55 AM
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#5 |
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Registered User
Join Date: Nov 2003
Location: northeast alabama
Posts: 256
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maybe picture will help
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01-15-2004, 01:00 AM
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#6 |
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Don't say "Oops!", Doctor
Join Date: Nov 2003
Location: Houston, TX
Posts: 677
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I'll be damned. I guess it's true... you do learn something every day.
__________________
'Mutt 1968 CST LWB: R.I.P. 1967 Chevelle: TPI 454 beast 1967 C10 SWB: Claimed when Bumpster didn't put it on his list |
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01-15-2004, 02:29 AM
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#7 |
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Pennyless Fool
Join Date: Oct 2003
Location: Forney,Tx
Posts: 439
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Yep, mines got one a them. Thats how you vent the block with sealed valve covers. If you take it out and plug it just remember your going to have to vent (pcv) your valve covers.
__________________
"Who owns this car with the peace sign, the mag wheels, and four on the floor?" 67 Short Step 283/TH400/4.11 |
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01-15-2004, 02:36 AM
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#8 |
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BlahBlahBlah
Join Date: Feb 2002
Location: Wa.
Posts: 19,826
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that brings back memories of my first car, a 57 chev i drug out of the woods. my dad said if i was going to learn how to drive i was going to need to know how cars worked. that old 283 was my first tear down
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01-15-2004, 02:40 AM
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#9 |
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Registered User
Join Date: Dec 2003
Location: Stockton, CA
Posts: 1,579
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I think they used those up to 66.
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01-15-2004, 02:45 AM
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#10 |
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Registered User
 
Join Date: Sep 2003
Location: DFW
Posts: 765
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they were used up to about 64-66 depending on the make and model. PCV I belive was government mandated on 67 up??memory aint perfect would have to dig out books. but the first PCV showed up in 64 on certain vehicles,dont remember which, would require them books agian and I aint walkin out to the shop.
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The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself? |
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01-15-2004, 02:51 AM
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#11 |
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Registered User
Join Date: Mar 2001
Location: Dallas, TX, USA
Posts: 769
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Reply
There is a down draft tube that connects to the block there that vents the engine since there was no breather caps on the valve covers. Kind of hard to find the original tubes too. It is a neat little part though - like a muffler that keeps the oil in the motor and lets the air pass out. I wondered what it was when I first found one lying around.
Ernie
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72 2WD Blazer 68 SWB Fleetside 67 SWB Stepside 2005 Chevy 1500HD Crewcab 56 Chris Craft Mahogany Runabout Looking for 36 Chevy 1/2 Ton P/U Project |
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01-15-2004, 03:32 AM
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#12 |
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My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,083
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I never could figure out what the heck that thing was, very interesting piece of redundant technolgy though, especially when it is just easier to put a hole and a vacum line into the valve cover.
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 Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life |
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01-16-2004, 05:58 AM
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#13 |
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Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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The old draft tube (the tube that dripped oil onto the driveway) went into the ventilator baffle until the PCV systems came out in the 60's. After that, the vacuum line went from the vent via an adapter to the PCV valve at the back of the carb. Return air came in from the oil filler cap (front of intake manifold) on both systems.
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01-16-2004, 03:54 PM
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#14 |
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Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,445
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Yea
The small journal 327 have this setup allso.JFYI
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2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327 |
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01-18-2004, 05:20 PM
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#15 |
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Pennyless Fool
Join Date: Oct 2003
Location: Forney,Tx
Posts: 439
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I have my intake off, thought I would post a pic of that canister if anyone is interested. This is in my 67 283.
__________________
"Who owns this car with the peace sign, the mag wheels, and four on the floor?" 67 Short Step 283/TH400/4.11 |
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