General Category > Quadrajet Carb Talk and Tips

sealing jet wells

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willie:
Will JB quick work as well as marine epoxy? Also I need to know if an electric choke needs a constant 12volts? ;D

Schurkey:

--- Quote from: willie on September 12, 2010, 08:59:25 PM ---Will JB quick work as well as marine epoxy?
--- End quote ---
Unlikely.


--- Quote from: willie on September 12, 2010, 08:59:25 PM ---Also I need to know if an electric choke needs a constant 12volts? ;D

--- End quote ---
No.  It needs switched BATTERY VOLTAGE which can be 14+ volts when the alternator is charging.  Best to route power through an oil pressure switch so the choke doesn't heat if the engine stalls; and I prefer to NOT power the choke during cranking. 

sdowney717:
the connection to a standard oil idiot switch is a ground switch.
Are you suggesting adding a different type of pressure switch, one that is a true switch on with positive power?
Right now I am adding an electric choke, how much current flows thru that heater? If it is not much, can you take power from the coil ignition switch?

Schurkey:

--- Quote from: sdowney717 on October 15, 2010, 04:03:22 PM ---the connection to a standard oil idiot switch is a ground switch.
Are you suggesting adding a different type of pressure switch, one that is a true switch on with positive power?
--- End quote ---

3-prong oil pressure switch, one prong like original to drive a dash indicator light, two as a "pass-through" (normally open) but when oil pressure closes the switch, the choke gets power.


--- Quote from: sdowney717 on October 15, 2010, 04:03:22 PM ---Right now I am adding an electric choke, how much current flows thru that heater? If it is not much, can you take power from the coil ignition switch?

--- End quote ---
You should not take power from the ignition coil if the coil has a ballast resistor.  You could take power from an HEI power wire as the HEI uses battery voltage and a heavy power wire that can supply plenty of current.

Some folks suggest taking power from the windshield wiper motor; as it isn't powered during cranking, and doesn't have a ballast resistor in the circuit.

First Guess:  The electric choke takes very little power.

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