| Engine Vacuum plumbing [message #242987] |
Mon, 10 March 2014 23:05  |
Jim Rountree
Messages: 47
Registered: July 2010
Location: San Antonio, TX
Karma: 0
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Today I started installing my Springfield overhauled carburetor and running new hoses. What do we do these days about vacuum to the distributor? Also is there any change to the distributor vacuum module?
Thanks for any comments.
Jim Rountree
San Antonio,TX
76 PB,
76 Royale RB
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| Re: Engine Vacuum plumbing [message #243013 is a reply to message #243005] |
Tue, 11 March 2014 09:10  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Dick Patterson operates as Springfield Ignition. Best carb you can get. Distributors and Ignition wires also. Unpaid endorsement, just another happy customer.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: Engine Vacuum plumbing [message #243014 is a reply to message #242987] |
Tue, 11 March 2014 09:28 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| Jim Rountree wrote on Mon, 10 March 2014 21:05 |
Today I started installing my Springfield overhauled carburetor and running new hoses. What do we do these days about vacuum to the distributor? Also is there any change to the distributor vacuum module?
Thanks for any comments.
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Jim,
The consensus seems to be to run the distributor vacuum advance to ported vacuum on the carb. IIRC, there is a vacuum port on the carburetor body about halfway up on the left (driver's) side. Most have bypassed the TVS as well.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Engine Vacuum plumbing [message #243017 is a reply to message #242987] |
Tue, 11 March 2014 10:06 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Yes, I think Dick wants ported vac (timed) signal to the distributor but you can confirm with him for that distributor.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Engine Vacuum plumbing [message #243158 is a reply to message #242987] |
Wed, 12 March 2014 10:04 |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
Karma: 7
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Def ported vacuum. If you have full vac at idle you will have way too much advance at idle and will likely stall esp when cold.
One of the issues I have with many aftermarket carbs for street use is the lack of ported vacuum.
76 Glenbrook
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