Home page
SPONSOR AD

Support our Vendors!  |  Advertise Here

Topic: 74 CorvetteVapor Canister

in Forum: C3 Fuel, Emission Control, and Exhaust Systems


Already a Member?
Login
Not yet a Member?
Register for Free!

74 CorvetteVapor Canister (1/5)
 7/29/08 6:57am
sbono
Former Member

Send Private Message

Joined: 7/29/2008
Posts: 6

Does the purge hose from the canister connect to ported or manifold vacuum on the carburetor? It is currently teed into the PCV Hose
Our Sponsors help support C3VR
74 CorvetteVapor Canister (2/5)
 7/29/08 8:07am
Adams' AppleLifetime Member
Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

Small block or big block?
Small blocks run to full(manifold) vacuum at the carb base.
Big blocks tee off of the PCV hose, which is still manifold vac. Adams' Apple2008-07-29 05:08:06

______________

Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

74 CorvetteVapor Canister (3/5)
 7/29/08 3:59pm
sbono
Former Member

Send Private Message

Joined: 7/29/2008
Posts: 6

This is a small block but appears to be plumbed like a big block
74 CorvetteVapor Canister (4/5)
 7/29/08 4:03pm
sbono
Former Member

Send Private Message

Joined: 7/29/2008
Posts: 6

Does it make a differance plumbed at Carb or PCV Valve?
74 CorvetteVapor Canister (5/5)
 7/29/08 4:33pm
sbono
Former Member

Send Private Message

Joined: 7/29/2008
Posts: 6

Little more info on this item. This car had every incorrect part in the feul system. I installed correct fuel pump with vapor return line, new canister. I also installedd a Pertronix electronic ignition, Edelbrock carb/manifold. The car ran fine to a local car cruise. After about 3 hours of sitting, fired it up to go home. Also filled up with gas on the way. Out of the blue when coming to idle the engine just stalled, restarted but would not idle. This is a 4speed car. Got curious about vap system plumbing. Disconnect PCV and plugged and it would idle somewhat. I thinking the problem is the purging of the canister with manifold vacuum. Any suggection are welcomed. 
Our Sponsors help support C3VR