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#1 |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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Well, to start with, I am far from being a carburetor expert.....I rececently bought my 1984 c10------mildly modded 305....cam, edelbrock 1406 carb and manifold....headers, duels.....when cold, it cranked right up!...would press the gas about halfway, let go, and crank it---choke kicked in....(electric choke---non emissions carb).....
......now, that was a few weeks ago...nights now are only getting to low 40's, maybe upper 30's......I go to start, and it is like the electric choke is not kicking in for some reason..... Should I start it cold giving it some gas? Start it cold with no gas? ( a few weeks ago, when very cold, I would press the gas pedal about halfway, and release, and then start and I could tell the electric choke was kicking in)....now, I can give it gas, and release, no gas...whatever----doesn't matter, it is as if the electric choke is not working ![]() ![]()
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#2 |
Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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I always depress my pedal all the way to the floor and back up before truning the key then just about half and fire the key. the choke may need adjusting also.
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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#3 | |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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"Fighting for our freedoms....." |
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#4 |
North Coast, baby!
Join Date: Jun 2004
Location: Toledo, OH
Posts: 437
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Are you sure the choke is not kicking in? Could it be moisture getting in your distributor? Have you checked to see if there is a blown fuse for the electric choke? I don't have an electric choke so I don't know if they even have a fuse, but it might be a power problem. From what I know about electric choke, it is tied in to the oil pressure. Are you getting any warning light on the dash?
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Brad 79 Scottsdale C20 ![]() 350/350 3.73's Still running full CA smog gear! ![]() |
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#5 |
Shadetree Mechanic
Join Date: Oct 2002
Location: Youngsville, NC
Posts: 100
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Electric Choke Should be adjustable
All the electric chokes I have worked on can be adjusted by rotating the cover.
There should be 3 screws holding the cover of to the choke, where the electrical connection is made. Loosen the screws and rotate clock wise( I think) to give it more choke. Pushing the accellerator and releasing before cranking allows the choke to rotate the fast idle cam and the fast idle cam is what holds open the throttle. Make sure this area of the Carb is clean, clean it with some carb cleaner and make sure it operates freely. Hope this helps.
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Dave M. (Hacksaw) 86 C10 Scottsdale LWB, 4.3L, Edelbrock 1904, K&N, 700R4, 3.08 Auburn Performance 89 GMC S-15 Extended Cab 4x4, 4.3L, FI 98 K1500 Xcab, 5.7L, 3.43 Gov-Lok |
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#6 |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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THX for the comments all.....the carb is spotless, and I am sure the choke does work (at some point anyway), when I do get it started cold, it carries the engine ilde up to about 1500 until warm....it just dosn't seem to be kicking in at first crank, cold.......I will check out the choke cylinder and see about dialing it forward some....I have a manual for this 1406, but man, is it hard to understand....!!! Once warm, it works GREAT, like a scalded dog!! Again, it was working good a few weeks ago....and I have done nothing to the engine......but, the weather is warmer if that matters......there is no electrical issues and there is good oil pressure......I have a see thru gas filter---it is pretty yellow-----maybe need changing and could that be the problem......??
Any other thoughts out there??? Anyone really familier with these Edelbrock performare series carbs...especially the 1406 -w- electric choke and non-emission..... ![]()
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#7 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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I have a 1406 on my truck. If the weather is getting warmer and the choke is working properly, then the timing is either too advanced or retarted. I change my choke setting and possibly timing with my carb. Yes it takes longer to start it when it's warm. Cold start is never a problem. Even in warm weather I tap the pedal just slightly unless the engine is really hot. Remember fuel will evaporate through the carb when the motor is turned off. It needs a few cranks to get fuel back into the intake then into the cylinders.
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#8 | |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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"Fighting for our freedoms....." |
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#9 | |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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![]() WooHooooo!! THX all again....great support here!! ![]()
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"Fighting for our freedoms....." |
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#10 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Chokes should only be adjusted when they are cold. Good job.
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