Vette(s): Currently own a white 1969 427 Big Block Coupe C3 Corvette
I was wondering what everyones procedure was to cold start their car without choke on a cold morning. Where I live a cold morning would be 46 degrees farenheit.
I pump twice and crank it for 5 secs, and repeat this procedure 3 times minimum until I get the car to fire up and stall, then one more pump it starts fine and about 30 secs of dancing on the throttle.
Should I be cranking it for longer after the first two pumps or keep cranking until it fires up after the initial pumping?
Will cranking it for longer drain my battery? I don't know if my current method is injecting to much fuel into the engine. Its definitely not flooding the engine as there is no overpowering fuel smell and the car does start.
Car is a 69 427. New starter, new plugs, recently rebuilt and tuned quadrajet. The choke coil was stretched so the choke mechanism was removed.
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.
The easiest thing to do would be to get a new choke spring. The starter motor is not a continuous duty motor so it should never be run continuously longer than about 5 seconds or so without a cooling-off period. My experience with GM V8s is that they are very hard to start with no choke at all.
Vette(s): 1968 Conv, 454HO,500HP-600TQ, TKO-600,3:70 HD rear,hotrod air, custom paint & suspension,1973 Ruby Red,T-top, 383 Stroker, TK)-500,frame off restro, 1977 Yellow (1 of 51 ) L-48 4 spd, 99% original.
I have a 68 w/ Gen VI 454 with no choke & prefer it that way. The reason being BB"s get so hot that starting one hot with a chock is PIA. I usually pump it 3 to 4 times and it starts right up. When it starts you have to pump it a bit & keep the idle up to around 2k for 15 to 30 seconds or so. Then it's fine for the day because BB's retain heat much more than a SB. I also installed E3 spark plugs that make a difference. Make sure your carb isn't to lean & it's jetted correctly for you altitude.
for a cold start i need full(manual) choke . i tried with no choke or even half choke but then i have to keep cranking and cranking..pumping etc.took sometimes long time before getting started .........sometimes the carb got flooded because of that ....so for me full choke works best.
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Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982