Is it hard to start your cold carbed car? [Archive] - Chevelle Tech

: Is it hard to start your cold carbed car?


Michael
Nov 17th, 02, 8:12 PM
I have a 454 w/ a BG 750 vac, sec and no choke and no choke tower. That rascal is pretty hard to start in this weather. Takes about 5 munutes to warm up until it will hold an idle. I have to keep it about 2000 rpm of it will stall until warmed.
Is that normal? How long does it take yours to warm up with no choke?
And, any trick you use to get her started quicker?

chev-hell
Nov 17th, 02, 9:18 PM
mine takes about a minute or so to idle on her own... i pump it 2x then she'll fire right off, the then i have to baby the pedal..... now get this though... i've run 4 different carbs on this car and this same thing happens, after she's opened the stat she Won't hold idle till all the water has warmed up, it's no yes no yes.... weird but that's the way it's been.

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1970 SS396 AKA 454/4spd
My Chev-Hell Page (http://hometown.aol.com/jnkb2cool/home.html)
GOLD Member #783
Metroplex Muscle
Ft.Worth, Tx
(OO=ss=OO)

SSuper Dave
Nov 17th, 02, 9:19 PM
Here in south Georgia, my 427 with q-jet and stock intake is the cold bloodedest car that I've ever owned. I pretty much do the same as you, the sooner you get it on the road, the quicker it heats up. I've considered a manual choke, easy to install and use when needed.

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"SSuper Dave" Palmer
A.C.E.S. #1483
Team Chevelle #32 Gold
1968 Chevelle 427/390hp, 700R4, 3.31 12 bolt
1988 Trans Am, runs when nothing else will.
1970 El Camino, licensed and insured for the first time since 1988, drove it down the block the other day, bodywork is continuing.

Barista
Nov 17th, 02, 9:23 PM
In cold weather mine takes 2 or 3 minutes before it will idle. Not really hard to start, but it does take 6 or 7 seconds of cranking, while pumping the accelerator. Then when it does fire up it comes to life in an instant, it's like somebody flipped a switch or something. Gotta hold it around 1800 rpm for a couple minutes or it will die. We don't need no stinkin' chokes!

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Bob Von Kaenel
70 SS 54k orig miles
My car. (http://www.chevelles.com/showroom/barista70front.jpg)
The red interior. (http://www.chevelles.com/showroom/barista70interior2.jpg)
The engine. (http://www.chevelles.com/showroom/barista70engine.jpg)
Hood trim. (http://www.chevelles.com/showroom/baristasgirls.jpg)

72SS454Chevelle
Nov 17th, 02, 9:55 PM
Mine does the same thing. Its like there is no vaccum till the water starts flowing. http://www.chevelles.com/forum/smile.gif I hit the go pedal a couple times and she fires right up then hold at about 1500 for a minute or two.

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Deon Knecht
72 Malibu 350 that has been bored out to 4.251 on a 4" stroke.

<A HREF="http://home.sc.rr.com/deon" TARGET=_blank>
My Website Last updated on 10/28/2002 </A>

RC 70
Nov 17th, 02, 10:00 PM
Mine idles right after I start it. Fresh engine, stock quadrajet without choke and performer intake. Of course it has been in the 80s.

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1970 SS 454
454 MUSL (http://www.chevelles.com/showroom/RC70_454MUSL.jpg)

Schurkey
Nov 17th, 02, 10:10 PM
Show up in North Dakota sometime. Geeez, you guys.

A carb with a properly functioning choke should start better than a car with fuel injection, when it gets REALLY cold.

BlueSS454
Nov 17th, 02, 10:13 PM
The 454 in my 70 does the same thing as well. Pump it twice and it fires right off. Have to feather the gas for about a minute, then it will idle on it's own all day long. It has a good old Holley 3310 on it.

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Tom Rightler
MCC # 497
Team Chevelle # 978
70 Chevelle SS (http://bluess454.freehomepage.com/70sshome.htm)
Maryland Chevelle Club (http://www.chevelles.net/mcc/mcc.htm)

thr062
Nov 17th, 02, 11:19 PM
On my 427 w/Holly I pump it once and it lights right off. I hold it at 2000 till it gets up to 140 deg. and drive it slow till it gets to 180 every time I start it cold. This works in hot or cold weather. Am I the only one who's car loves cold weather?

Will

Gandalf80
Nov 17th, 02, 11:55 PM
I have no choke or choke tower on my 950hp either, and in below freezing temps it will idle fine on it's own at 800rpm after about 30 seconds. You just need to get that idle circuit tuned up properly for the cooler weather and it should idle fine. I need to re-tune my idle circuit every time the average temperature changes by about 10 degrees celsius either way to maintain an idle that I am happy with.

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Chris Dagenais
'71 Malibu with a home built 454! 12.7@107
For everything you do, this burnout's (http://www.71malibu.com/Burnout.wmv) for you.
The Green Monster (http://www.71malibu.com)

Stikman33
Nov 18th, 02, 12:38 AM
Yeah, my car loves cold weather also. For some reason i just feel it runs better. Colder air = denser air i guess http://www.chevelles.com/forum/smile.gif

Whittaker
Nov 18th, 02, 1:15 AM
Mine must have died 10 times this morning when it was in the 20's but I need to fine tune it more. Very cold blooded.

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1966 Chevelle Malibu Sandalwood, Gold color
454, .30 over, 770 Holley, Edelbrock RPM Air Gap, 781 oval ports,
700 R4 transmission
12" disks up front and hope to have disks in the rear soon.

13.575 @ 100.22 mph. Second run ever.

Whittaker
Nov 18th, 02, 1:17 AM
Gandalf80 Very nice burnout. That was sweet.

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1966 Chevelle Malibu Sandalwood, Gold color
454, .30 over, 770 Holley, Edelbrock RPM Air Gap, 781 oval ports,
700 R4 transmission
12" disks up front and hope to have disks in the rear soon.

13.575 @ 100.22 mph. Second run ever.

novaderrik
Nov 18th, 02, 2:32 AM
if you have a properly setup and functional choke, it should run perfect right away no matter how cold it is. a couple of other things that help cold weather drivability are the heat crossover in the intake and a stock snorkel air cleaner with the heat stove working. these warm up the incoming air and make it run right in cold weather. i have tried them both, and they do work. GM didn't spend millions of dollars perfecting these systems for the fun of it. i just wish they would put heat stoves on new cars. my 94 LT1 powered Caprice gets really bad fuel economy in the winter. my theory is that the cold air keeps it in "choke" mode, and keeps it running rich. i am trying to figure out a clean way to add a heat stove to it.

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1971 Nova. 355, vortec heads, HOT cam kit,62 Vette T10 tranny,3.70 gears, 16" IROC wheels.
http://community.webshots.com/user/novaderrik

boduke
Nov 18th, 02, 2:42 AM
i love cold weather and no choke

ChicagoChevelle68
Nov 18th, 02, 3:05 AM
Installed a manual choke years ago, too impatient with the accerlerating stumble while waiting for the bimetalic spring to open the choke . I push the choke in while pumping 2x, always starts right up. I keep it going at higher idle, (1.5k to 2k), when cold, then open it up a bit when warmed, and all the way when hot.

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Joe G.
ChicagoChevelle68
Any car past 1972 is just simply transportation, really!

charbilly2001
Nov 18th, 02, 9:52 AM
<BLOCKQUOTE>quote:</font><HR>Originally posted by Schurkey:
Show up in North Dakota sometime. Geeez, you guys.

A carb with a properly functioning choke should start better than a car with fuel injection, when it gets REALLY cold.
<HR></BLOCKQUOTE>


And without a properly functioning choke in your part of the country you walk. Chokless cars don't start when its 30 degrees below zero. http://www.chevelles.com/forum/biggrin.gif

CHELKAMINO
Nov 18th, 02, 11:26 AM
If you want to fix the problem and your motor can handle it....try richening the carb a little. The colder the air is the more gas you need. Also, try a step hotter plug if needed. I have done this in my Elky every fall. It seems to help it idle better when i drive during the winter months. But come spring time.....don't forget to switch it back. BTW...I have a chokelees carb too.

427L88
Nov 18th, 02, 11:38 AM
Chelkamino speaks truth. Michael, I dont think there is anyway around the warm up time. The new 439ci fires immediately , even with the 3X2 ( after two FULL pumps ), but it wont idle or hold vacuum for at least five minutes ( alum heads DONT help here). I usually bump idle speed up, and may even jump a squirter # or two in the primary.

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Gene
ACES / CanAm Chevelles
67 SS 427 (http://www.chevelles.com/feature/october2000.html)

mr 4 speed
Nov 18th, 02, 12:51 PM
Even if it gets down to the mid 30's,my 454 w/a Holley 750 dp just takes 2 shots of gas and will start up and idle.Same if use a 3310 too.

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My 70 SS396 (http://www.chevelles.com/showroom/mr4speed70SS1)
Engine pic (http://chevelles.com/showroom/mr4speed70SSengine2)
My Black Cherry 70 SS454 (http://www.chevelles.com/showroom/Photo0031.jpg)
The launch (http://www.chevelles.com/showroom/CClaunch.jpg) 13.13 @ 101.490/1.92 60 ft. with radials,2.73's,and thru the mufflers
1.90 Best 60 ft.
101.84 Best MPH
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Member # 141 AMCA

Midnight Marauder
Nov 18th, 02, 1:09 PM
My choke has laces on it and keeps my foot warm and dry.

Cali gets a little cold but nothing two pumps on the throttle wont fix. Just hold her at 1200 for a couple of minutes and then take it easy on her for another 10 / 15 or so while driving.

If she sits for two weeks or so I might get three or four revolutions out of her before she kicks but otherwise, two pumps and turn the key.



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'70 SS 396
4spd, 4.10's and a smile
TC# 1341
ACES# 5388
Beaux
The SS (http://www.chevelles.com/showroom/btmyss.JPG)
The Rat (http://www.chevelles.com/showroom/btmill.JPG)
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Life is a gateway drug that leads to Chevelle addiction.

MalibuJerry350
Nov 18th, 02, 1:20 PM
I just get in, stab the gas once to set the choke and it starts right up..usually within one revolution. Holley 4 barrel, vacuum secondaries with an electric choke. Edelbrock 2101 manifold with the crossover open. I also have the anti dieseling solenoid hooked up and adjusted properly so it doesn't conflict with the fast idle cam. As was mentioned, with a properly functioning choke and a properly tuned engine, no cold start OR run problems should occur. This includes stumbling. I let the engine idle for about 30 seconds and drive right off, every morning, with no drivability problems.

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MalibuJerry350
TC Member #1279
Original owner '70 Chevelle.
591,000 miles on car.
Hey, if it's got wheels, DRIVE IT!
My Chevelle: http://hometown.aol.com/erie614/myhomepage/index.html

Michael
Nov 18th, 02, 2:00 PM
Hey guys, I know you fellas with chokes should not have too much of a problem. Again I have no choke and no choke tower.
So it seems I'm in the ball park with my setup...

70L34
Nov 18th, 02, 2:17 PM
Before I swapped in the new motor, my Caprice had an old AFB carb on it with an Edel electric choke kit. Didn't work very well, though--came right off the fast idle cam when you blipped the pedal. Car is back in Wisconsin now, and I have to let it run on fast idle for a couple of minutes before it'll idle in gear.

The Chevelle started right up in 10-degree weather last winter in WI! Edel Q_jet with stock bimetal choke/rod setup. Works great!

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Tony Nausieda
1970 SS 396 L34
1977 Caprice, roller SB406
1965 Le Mans EFI'd 468, M22, Global West, etc

ChevelleCLM
Nov 18th, 02, 2:41 PM
"A carb with a properly functioning choke should start better than a car with fuel injection, when it gets REALLY cold."

I really beg to differ. My 747 ECM temp tables go down to like -60 deg or something stupid like that. It does not matter what tempreture it is outside, if I look at my key in the ignition and think about it starting hard enough it will almost turn the key itself!!!!!!! OK not really but it always starts 1st try, and I can back out of the driveway and do a burnout if I want to.

I like my EFI, and will never put another carb on any of my vehicles.

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69 Malibu 350 TBI EFI Supercase Muncie 4speed 12bolt 3.73's
Bench Blue w/black inter. 14.5@90mph
96 2 door Tahoe Z-71
87 Turbocharged 4WDRaider
"UNACCEPTABLE!!!!!" Beldar

My 69 Chevelle (http://www.chevelles.com/showroom/Chevelle1.jpg)

mr 4 speed
Nov 18th, 02, 3:50 PM
..forgot to mention neither of my Holley have chokes

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My 70 SS396 (http://www.chevelles.com/showroom/mr4speed70SS1)
Engine pic (http://chevelles.com/showroom/mr4speed70SSengine2)
My Black Cherry 70 SS454 (http://www.chevelles.com/showroom/Photo0031.jpg)
The launch (http://www.chevelles.com/showroom/CClaunch.jpg) 13.13 @ 101.490/1.92 60 ft. with radials,2.73's,and thru the mufflers
1.90 Best 60 ft.
101.84 Best MPH
1968 Oldsmobile Cutlass convertible
1973 GMC Sierra 454 p/u
1985 Cadillac Eldorado (daily driver)
Chris Corwel,TC Member # 785
Member # 141 AMCA

blaster
Nov 18th, 02, 4:05 PM
How do you tell the difference betwwen electric choke not working or heat manifold riser blocked?

michaelw66
Nov 18th, 02, 6:09 PM
I hated putting the electric choke on my carb, but it's made it quite a bit easier to start on cold mornings.

Thanks for the burnout video gandalf80. It made my Monday!!!! I've watched it probably 10 times already, and I saved it for later. Really, Thanks!

Michael

novaderrik
Nov 19th, 02, 3:32 AM
blaster,

to check if an electric choke is working, just turn on the key when the car is dead cold, and watch for the choke to open up.
to check a blocked heat riser, get the engine nice and warm and drip a little water on top of the crossover passage on the manifold. if it's working, the water will boil into steam instantly. if not, it will just run off.

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1971 Nova. 355, vortec heads, HOT cam kit,62 Vette T10 tranny,3.70 gears, 16" IROC wheels.
http://community.webshots.com/user/novaderrik

thr062
Nov 19th, 02, 5:20 PM
Hay Gandalf80, that was a great burnout. I use to be the olympic sign king in my town. The problem any more is that in my airea, they went and put islands in all the parking lots and by the time you do the 5 360's needed to make the sign your tires are toast.

Will