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Old 09-13-2011, 06:49 PM   #1 (permalink)
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Default just put in new carb/intake but car wont start?

just put a new edelbrock rpm air gap and holley 4bl 650cfm carb on my car, but it wont start.

any one have any ideas why this is?

thank you!
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Old 09-13-2011, 07:10 PM   #2 (permalink)
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Try spraying some carb cleaner down the carb to help the fuel pump prime, make sure you put the air cleaner on before starting in case it back fires.
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Old 09-13-2011, 07:36 PM   #3 (permalink)
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What symptoms?

Crank or no crank?

Trying to start or nothing at all?

More info
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Old 09-13-2011, 07:50 PM   #4 (permalink)
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mikegh ok i will, thank you

and trying to start =(
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Old 09-13-2011, 09:15 PM   #5 (permalink)
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if it doesn't even sputter, i'd bet distributer is 180 degress off. get to tdc pull dist rotate crank till tdc again put dist back in . this isavery common mistake (i seem to do it everytime)
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Old 09-13-2011, 09:28 PM   #6 (permalink)
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If this is a 289/302, there is a port on the back of the carburetor riser for power braked or pcv. It is about 1/2" in diameter. The manifold should have came with a plug. If you do not plug this the car will never start and it is easy to miss as it is on a part of the manifold you don't normally look at. Ask me how I know.

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Old 09-14-2011, 04:43 AM   #7 (permalink)
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did you pull the distributor out? or even loosen it? big possibility that is your problem. Is fuel getting up to the carburetor?
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Old 09-14-2011, 09:26 AM   #8 (permalink)
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Any spark? Probably a dizzy/timing problem. Or maybe the ignition wires / coil aren't hooked up properly. Did you put the rotor back on?
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Old 09-14-2011, 09:33 AM   #9 (permalink)
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Off the top of mu head..

Check for spark (and/or power to the Distributor if HEI), All vacuum ports hooked up or plugged, Check the timing and TDC like mentioned above.You can prime the carb by carfully pouring fuel into the vent tube on the top of the carb, it fills the fuel bowl.
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Old 09-14-2011, 09:33 AM   #10 (permalink)
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yeah check for vitals fuel and spark. if they are both there may be a vaccum problem. oh and double check the plug wires
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Old 09-14-2011, 10:28 AM   #11 (permalink)
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Give us some hints....what did you do, what is happening?
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Old 09-14-2011, 11:31 AM   #12 (permalink)
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Getting into the spirit of this game of 20 questions:

1. Given that it cranks, does it sputter or make any sound?

2. Did you prime the carb?

3. Did you try a start-assist spray?

4. After trying to start, can you smell fuel at the carb?

5. After trying to start, what does the exhaust pipe smell like (burned fuel, unburned fuel, ham sandwiches, )

6. Have you checked for spark at (some of) the plugs?

7. (Repeat) how did you set/check the timing after putting the dizzy back in?

8. (Repeat) did you double check for open ports on the intake/riser/carb?

9. Is it bigger than a bread box?

OK, I'm getting carried away now...
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