Edelbrock Idle Mix Screws reset position? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-05-2009, 09:59 PM
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Edelbrock Idle Mix Screws reset position?

Does anybody have a clew what the factory setting(position)are for these 2 screws? I cannot find it anywhere and I have the owners manual......all it tells is how to set them,but not what the stock position of them are and by position what i mean is there factory base line setting(if screwed all the way in,how many turns back out to factory specs).Got the carb off a buddy of mine and its all JACKED up...any ideas would be helpful,its a PERFORMER 1406(600cfm)carb
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GM

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Old 02-05-2009, 10:38 PM
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AFB is 1 to 1 1/2 max which should cover the edel one as well. Both my AFB are at 1 1/4 on my tunnel ram.
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Old 02-05-2009, 11:04 PM
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So thats 1 1/2 FULL turns out max....and that should get me in the ballpark,
O.K., I will give it a try in the mornin thats if is not 16 deg. out again
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Old 02-05-2009, 11:36 PM
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yes - turn until they are closed or in all the way, do not over tighten be nice to the little screw , then turn out 1 and 1/4 turns to start. Should be dam close depending on your motor. My SBC 350 is 1 1/4 Dad's olds is about 1 1/3 so that should get you running.
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Old 02-06-2009, 01:20 AM
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Thanks a mill.... ill be sure to be easy on the lill guys ,the last thing I nead is to strip one of them out .... is it possable to flood your carb easier if your not using a fuel filter? this might be a dumb question but wouldnt a fuel filter act more like a small restriction,almost like a set regulator...and without that in place cause fuel to get forced into carb to quickley =ing in flooding?
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Old 02-06-2009, 07:20 AM
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Quote:
is it possable to flood your carb easier if your not using a fuel filter? this might be a dumb question but wouldnt a fuel filter act more like a small restriction,almost like a set regulator...and without that in place cause fuel to get forced into carb to quickley =ing in flooding?
Nope,....

But,.. Running Without a filter Will introduce a pile of $h!t into the carb....
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Old 02-06-2009, 11:07 AM
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Quote:
Originally Posted by bondo
Nope,....

But,.. Running Without a filter Will introduce a pile of $h!t into the carb....
I'll add .. BIG Pile! 5.5 =6PSI on the fuel pressure. More and fuel will pass the seats which can cause flooding.

Float set to high = flooding
bad seats = flooding
to high fuel pressure = flooding
bad body gasket = flooding

Before running it may sure the area is dry in the carb and get a good light, Pull the coil wire or whatever so it won't fire. Either use a remote button or a buddy whose still sober after sucking down all yor PBR have them spin the motor over WITHOUT touching the throttle and look into the carb. Repeat a few times.

Do you see fuel spray in there? A puddle forming in the back secondaries?
No?? Your seats and such are fine

Yes?? Your seats and or all the above are bad or need adjusting.

Floats are easy - 7/16 drill bit dead center of the float with the unit upside down.

Seats you can gently clean sometimes with hot soapy water.

gastket - make or buy a new one.

Now go buy a 5 dollar filter!!!!
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Old 02-06-2009, 09:47 PM
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Quote:
Originally Posted by Tics60
Now go buy a 5 dollar filter!!!!

Wow....I must have known that was cummin....After work today I went and bought a filter but it wasnt $5 it was a whopping 10 bones....got one of dem fancy MR G clear glass ones, now to see if i can try and not brake it....I wasnt being cheap,I was just trying the carb out to see if I was going to keep it,thats all.......Im converting My monte SS over from comp. controlled to NON...now im just working out the bugs...thank for the input
GM
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Old 02-10-2009, 02:48 AM
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Got the IMS set out at 1 turn and it runs better than with the ccc but when I bump the throttle it backfires up threw the carb but not bad enough to stall it.....it looks like a small geyser erupting......and idles rough,I havent checked the timing yet with a light,just by sound....I have read that 80% of the time the cause is timing,10% could be to lean and the other 10% is reserved advance timing problems like vacuum adv. diaphragm or maybe mechanical adv. springs weak or worn......I recurved the timing so its new......im betting its the timing.
GM
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