motor has a mis at idle?????????? - Team Camaro Tech
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post #1 of 4 (permalink) Old Apr 8th, 04, 05:44 PM Thread Starter
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i have a brand new has mild cam,edlbrock 600cfm carb,remanufacter distributor,new super coil,wires,plugs,etc.with the engine running its smooth and then a buhhh and smooth and buhhhh.hope you can under stand the sound effects feels like a dog from idle to about 1500 rpm.its strong going down the road at 20mph and stopping its it will hall.but from idle to about 1500 rpm it kinda feels like a weedeater???i have factory manifolds duel exhaust going through flowmasters.i am puting headers on next week.also i notice that the inline glass filter is not all the way full idling or when i rev it up????any help????

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post #2 of 4 (permalink) Old Apr 9th, 04, 01:42 AM
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Fuel filter should be full, could be the gasoline vaporizing due to heat, thus showing up as 'air' in the filter. Or, fule pump may not be 'sucking' good from the tank, or supply line from the tank may have a minute leak. Is the filler cap vented?

Use a vacuum gauge to adjust carb mixture screws, and tune for max vacuum.
Check to make sure there is not fuel dribbling from the venturi boosters as you look down the carb body. If there is, float level is too high.
You might want ot try hooking the distributor vacuum cannister to manifold vac, sometimes, this helps, especially if 'bolder than stock'camshaft is used.
Check the accelerator pump is working when throttle is bumped.
Check to make sure there are no vacuum leaks, espaecially between carb & manifold.

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post #3 of 4 (permalink) Old Apr 9th, 04, 02:43 PM
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Originally posted by 67RSRAG:
also i notice that the inline glass filter is not all the way full idling or when i rev it up????any help????

I'd consider ditching the inline glass fuel filter and installing a factory steel pump-to-carb line; those glass filters with rubber hoses and clamps are a fire waiting to happen. [img]graemlins/clonk.gif[/img]

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post #4 of 4 (permalink) Old Apr 10th, 04, 05:23 AM
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John gives good advice (as always) [img]smile.gif[/img]

I just picked my car up from being in the paint shop for a little under a year. It went in with one of those glass fuel filters and it was not leaking at that time. When I went to pick the car up 11 months later, the filter was leaking quite a bit. Tried to stop it a few times but it just kept leaking. I had to run over to the local parts store and buy one of those clear plastic universal filters. You can see inside them easily and they are very reliable.

I can not say enough how relieved I am becaused I checked under the hood before driving off! It probably would have been a total loss. I carry a fire extinguisher in the car but the painter had put it in the trunk for me [img]graemlins/clonk.gif[/img] The trunk lock mechanisim was not yet installed but the latch was! Me without my screwdriver either. I still shiver the thought.

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