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Dominator air bleeds

Posted By: 493_DART

Dominator air bleeds - 04/12/09 02:19 AM

has anyone cleaned up the idle swapping idle air bleeds ? this is a 1050 . What are the stock sizes , and how much bigger is recommended ? Ive already played with the mix screws and throttle blades , but it still seems pretyy rich at idle.

i dont remember off hand the list # on my carb , i know its something like 8082-1 . 4 corner idle mix . 3.5 Power valve in front , none in rear.


Also does anyone have any for sale? Looks like Jegs wants $20 a pair if i read it right.
Posted By: DRDart

Re: Dominator air bleeds - 04/12/09 02:24 AM

Quote:

has anyone cleaned up the idle swapping idle air bleeds ? this is a 1050 . What are the stock sizes , and how much bigger is recommended ? Ive already played with the mix screws and throttle blades , but it still seems pretyy rich at idle.

i dont remember off hand the list # on my carb , i know its something like 8082-1 . 4 corner idle mix . 3.5 Power valve in front , none in rear.


Also does anyone have any for sale? Looks like Jegs wants $20 a pair if i read it right.




I have you could also find a local rebuild that has blank air bleeds much cheaper & drill them small & work your way up.

Attached picture 5158744-DSC00205A.jpg
Posted By: Bob_Coomer

Re: Dominator air bleeds - 04/12/09 02:26 AM

First take them all the way out and see if that helps clean it up...It might not be the idle circuit at all. The outer ones by there self is the ones to omit for now...
Posted By: 493_DART

Re: Dominator air bleeds - 04/12/09 07:28 AM

Quote:

First take them all the way out and see if that helps clean it up...It might not be the idle circuit at all. The outer ones by there self is the ones to omit for now...




?? what do you mean? take them out? I think that would be way lean.

like i said--ive tuned this one as far as its going to go--- still a bit rich at idle--as in..."get outa the garage soon" too rich exhaust... but not WAY too overwhelming....;)

Ive leaned it as far as i can without it dying at idle--idle is around 1000 .


EDIT---- ok, will try without the bleed jets.
Posted By: Anonymous

Re: Dominator air bleeds - 04/12/09 11:09 AM

use some carb cleaner withthe long tube nozzle first and make sure all the passages are clean.
you can also try increasing your idle bleed size .007-.010" that's plenty to see if it helps, and it normally does. there are other mods that canbe done also, but that's the easiest and cheapest to start out with.
Posted By: moparniac

Re: Dominator air bleeds - 04/12/09 11:19 AM

496. Ive been looking to get a bunch some myself.. the $20 is for a pack of 10....

my dominator came with Idle .045 / Mid .075 / Main .035




If there are some your looking at getting I can but the packs of ten and split the cost with you.. you only need 4 oarb..
Posted By: 602heavy

Re: Dominator air bleeds - 04/12/09 01:15 PM

Pretty unlikely you'll clean it up with an air bleed mod , especialy if it's the 3 circuit , lots have been covered on here regarding modifications to these carbs , had the same problem with the 8896 , changed out the metering block gasket for a 4150 & restricted the IFRs with some wire , it'll never clean up so long as yer running tight lobe seps & long duration cams , spits out raw fuel @ overlap , tis the nature of the beast.
Posted By: Cab_Burge

Re: Dominator air bleeds - 04/12/09 03:04 PM

Quote:

Quote:

First take them all the way out and see if that helps clean it up...It might not be the idle circuit at all. The outer ones by there self is the ones to omit for now...




?? what do you mean? take them out? I think that would be way lean.

like i said--ive tuned this one as far as its going to go--- still a bit rich at idle--as in..."get outa the garage soon" too rich exhaust... but not WAY too overwhelming....;)

Ive leaned it as far as i can without it dying at idle--idle is around 1000 .


EDIT---- ok, will try without the bleed jets.


? Whats the results? I have been able to clean up the idle mixture by using 1/4 to 1/2 turn out from bottom on all four idle mixtures screws and increasing )(.003 to .008)the idle bleed diameter also That was on 4150 DP carbs and soem 1050 Dominators, the Dominators list numbers circuits inside are differnt carbs from each other as already mentioned
Posted By: 67HEMI

Re: Dominator air bleeds - 04/12/09 03:10 PM

What is your ignition timing at idle? Needs to be around 18 to 20 degrees for a clean idle.
Posted By: fbs63

Re: Dominator air bleeds - 04/12/09 03:11 PM

Holley's website has a numerical listing with the air-bleed sizes per list number carb.
Bob

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Posted By: sixpackgut

Re: Dominator air bleeds - 04/12/09 04:06 PM

if throttle blades are not set properly, you will chase this problem forever. that would be the first thing i check
Posted By: 493_DART

Re: Dominator air bleeds - 04/12/09 08:44 PM

ive set the blades as low as they can , and also the mix screws. I think they are around 1.5 turns out. Anymore inward and the car dies.

I will fire it today hopefully and check the timing + remove the bleeds to see what happens.
Posted By: Bob_Coomer

Re: Dominator air bleeds - 04/12/09 09:27 PM

Quote:

Quote:

First take them all the way out and see if that helps clean it up...It might not be the idle circuit at all. The outer ones by there self is the ones to omit for now...




?? what do you mean? take them out? I think that would be way lean.

like i said--ive tuned this one as far as its going to go--- still a bit rich at idle--as in..."get outa the garage soon" too rich exhaust... but not WAY too overwhelming....;)

Ive leaned it as far as i can without it dying at idle--idle is around 1000 .


EDIT---- ok, will try without the bleed jets.




Letting it idle like that some wont hurt it a bit, I didnt mean to toss them in the trash, this would just be away to pin point the problems. If this doesnt clean it up, your idle circuit isnt the problem.
You need to back the speed screws all the way out from touching, them give the front about 3/4-1 turn in after contact, give the rear a little more about 1 1/2 turns. Turn the idle mixture screws all the way in, and then back out 3/4 of a turn, fine tune from there.
Make sure the float level is correct, Dominators are pretty sensitive on floar adjustment. Set them low enough to were you have to bounce on the car to get fuel to run out while idling, then turn it in another 1/3 turn down. Again Fine tune from there..

If your timing isnt up to snuff at idle, no carb tuner in the world can make it idle clean....

Big cam.....get about 20 deg intial, other wise pointless to tune any more
Posted By: turbobitt

Re: Dominator air bleeds - 04/13/09 02:24 AM

YOu can try this little trick, take the air bleed completly out of the intermediate and high speed circuits. This should effectivly dissable them or at least desensitise them for idle tunning. If for some reason the throttle blades are open to far, it can be taking fuel from the intermediate circuit. If removing the air bleeds from those circuits makes it better, you may need to go up on the intermediate air bleeds.
Allan G
Posted By: 493_DART

Re: Dominator air bleeds - 04/13/09 02:38 AM

too late to start the car tonight...

But, i cant find any info on my carb its NOT listed on Holleys site!

its a 80823 , 2 circuit idle . Im wanting to know the stock jet size / bleed sizes / pv sizes . Ive searched the web now for 30 minutes.
my int. bleeds are 37 and the idle bleeds are 71
Posted By: moparniac

Re: Dominator air bleeds - 04/13/09 02:47 AM

Quote:

too late to start the car tonight...

But, i cant find any info on my carb its NOT listed on Holleys site!

its a 80823 , 2 circuit idle . Im wanting to know the stock jet size / bleed sizes / pv sizes . Ive searched the web now for 30 minutes.
my int. bleeds are 37 and the idle bleeds are 71




Im no carb expert but arent those numbers backwards...
Posted By: 493_DART

Re: Dominator air bleeds - 04/13/09 03:21 AM

i dont know------like i said , i cant find any info on sizes



can anyone tell me what size bleeds need to be where ?
Posted By: Cab_Burge

Re: Dominator air bleeds - 04/13/09 04:17 AM

Quote:

i dont know------like i said , i cant find any info on sizes



can anyone tell me what size bleeds need to be where ?


Call the Holley tech line, I couldn't find any bleed size information on Holley tech library either If you talk to them suggets adding that information onto the tech site library
Posted By: 493_DART

Re: Dominator air bleeds - 04/13/09 04:59 AM

i can tomorrow --or if someone could take a quick look at their 4500 .......
Posted By: 493_DART

Re: Dominator air bleeds - 04/15/09 01:16 AM

I fired it today . Initial is about 15-16 degrees , 35 total .

i pulled 2 bleeds out at a time , the idle didnt change. With 3 out , it would die.

In other words it will idle with either the rear 2 bleeds removed , or the front 2 . Dont know if that tells ya anything...

I do have an advance kit coming for the dist. Its a MP .
Posted By: turbobitt

Re: Dominator air bleeds - 04/15/09 01:37 AM

Try removing just the 4 inner bleeds. I think those are the high speed bleeds. Removing those should sut down the high speed circuit and any possible influence it can have on the idle circuit. If it cleans up the idle, then at least you have some sort of direction.
Allan G.
Posted By: 493_DART

Re: Dominator air bleeds - 04/15/09 01:40 AM

ok, will try that
Posted By: sixpackgut

Re: Dominator air bleeds - 04/15/09 02:04 AM



8082 is a 2 circuit

stock IAB is 71 and the high speed is 37

i think your tmming is to low.

my procedure is this, with carb off the car, i set throttle blades. install carb then set timming to desired idle rpm. if it wants 22* then i adjust dist to get the disired advance or lock it out. mine is basically at total at idle
Posted By: 493_DART

Re: Dominator air bleeds - 04/15/09 02:13 AM

yes sir--thats whats in it--

i should be able to fine tone my dist when the kit arrives.


maybe my idle mix isnt as bad as i think.....i usually run the car in the garage...YES, the door is open.......


it wont idle unless i have both blades/idle screws at around 2-3 turns and the mix screws around 1.5 turns out.....

Posted By: sixpackgut

Re: Dominator air bleeds - 04/15/09 02:14 AM

i fixed my post
Posted By: sixpackgut

Re: Dominator air bleeds - 04/15/09 02:18 AM

Quote:

yes sir--thats whats in it--

i should be able to fine tone my dist when the kit arrives.


maybe my idle mix isnt as bad as i think.....i usually run the car in the garage...YES, the door is open.......


it wont idle unless i have both blades/idle screws at around 2-3 turns and the mix screws around 1.5 turns out.....






i think your exposing the transfer slot trying to raise your rpm when you shold use the dist.
Posted By: sixpackgut

Re: Dominator air bleeds - 04/15/09 02:28 AM

Quote:

too late to start the car tonight...

But, i cant find any info on my carb its NOT listed on Holleys site!

its a 80823 , 2 circuit idle . Im wanting to know the stock jet size / bleed sizes / pv sizes . Ive searched the web now for 30 minutes.
my int. bleeds are 37 and the idle bleeds are 71




air bleeds are stock
84 jet square stock
6.5 PV front and rear stock( i ditch the rear PV and toss a 90 jet in there but you can see how it runs with it)
nice simple carb
Posted By: 493_DART

Re: Dominator air bleeds - 04/15/09 02:33 AM

thanks sixgut--

will report back after i get some more initial in it



Posted By: Nitrofish

Re: Dominator air bleeds - 04/15/09 03:42 AM

I agree with sixpackgut. I had the same problem with my 8896-1 Dominator. For the engine to idle it was necessary to open the throttle plates to far and it left the transfer slots completely exposed. I ended up drilling small holes in each throttle plate to correct the concern and increasing ignition timing.

It sounds like your idle mixture is set correctly at this time. Mixture screws 1 1/2 turns out from seated is the correct normal range, Fining tuning can be done later but thats pretty close for now.
Posted By: 493_DART

Re: Dominator air bleeds - 04/22/09 12:14 AM

Well, i re-curved the dist today with the Mallory kit. Now ive got 20 initial / 35 total. The curve starts around 1300 and is all in by 2500. I also welded the pickup plate--the pickup was moving up and down because of the vac adv. lever, enough to really alter the air gap.

I was able to adjust the carb a little-not much . Its nice and responsive blipping the throttle at 1,000 rpm .


Now if i could just get to the dam track!
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