Rolling Idle

[Bootybandit]

Ok, spot on. To be clear there is no place on this carb for a ball bearing check?  Moving forward. I will trim the little tab off the umbrella check valve.  Then adjust the float, however there is no access for the seat!  There is a cap on the top of the bowl covering it.  Should I pry that off?  

[Bootybandit]

Also see LOCK SCREW?  That on mine is capped giving no access, and according to others its a non adjustable float too.  FYI I looked at the accelerator pump diaphragm that came with my 24$ amazon rebuild kit with a flashlight and there is a hole in it, you get what you pay for.  AND is it possible I have a marine carb?

[Gary Lewis]

Who's on first, What's on second, I Don't Know's on third.  

[85lebaront2]

Yes. That is correct sir. Apparently they can't read.

[85lebaront2]

DID YOU READ MY POST EXPLAINING HOW TO SET THE FLOATS WITHOUT THE EXTERNAL ADJUSTMENTS???

"Fixed needles and seats, set by the spec sheet with a gauge that should be in the kit. Adjustment is done by bending the tang on the float."

FWIW, here is a kit I just received for a Holley R4609, Ford PN C9AF-9510-U:





The last image is the secondary diaphragm and the small parts, including power valve, gasket, 3 inlet gaskets, 0.110 needles and seats, new throttle plate screws. This is what Holley called a "master kit". The company I ordered it from specialises in Ford Holley performance carbs, he does not support the 4180C carbs.

[85lebaront2]

Here is the setting procedure from Holley's website:
GENERAL GUIDELINES FOR ADJUSTING BRASS AND NITROPHYL FLOATS


Two methods of float adjustment are provided for with Holley performance carburetors depending on the style of float bowl and needle and seat assembly employed. They are the internal (dry) setting and the external (wet) setting. The internal float adjustment is accomplished with the fuel bowl off the carburetor. With “internally adjustable” needle and seats, the fuel bowl is inverted and the float tang, or tab, is adjusted to the point where the float surface is parallel to the fuel bowl surface, just underneath. An initial dry setting can also be accomplished with “externally adjustable” needle and seats. To achieve this, invert the fuel bowl and turn the adjusting nut until the float surface lies parallel to the fuel bowl casting surface underneath.



Another, more accurate adjustment can be made with the side hung style float if measuring gauges, such as drill bits, are available. Here, with the fuel bowl inverted, the primary float can be adjusted to the point where there is a 7/64" gap between the “toe” of the float and the bottom of the fuel bowl surface underneath. The float “toe” is the part of the float furthest from where the arm is attached. The secondary float can be adjusted to the point where there is a 13/64" gap between the “heel” of the float and the bottom of the fuel bowl surface underneath. The float “heel” is the part of the float closest to the point where the arm is attached.

[Bootybandit]

Ok, got I really appreciate all the help. I'll adjust the float and as far is this  “externally adjustable”  I don't have access to that.  I'll post a pic of it later.

[85lebaront2]

I understand what you have, get the float setting from the kit spec sheet and follow the instructions in your kit (if there are any). Here are the procedures for setting your float levels:

With “internally adjustable” needle and seats, the fuel bowl is inverted and the float tang, or tab, is adjusted to the point where the float surface is parallel to the fuel bowl surface, just underneath.

Another, more accurate adjustment can be made with the side hung style float if measuring gauges, such as drill bits, are available. Here, with the fuel bowl inverted, the primary float can be adjusted to the point where there is a 7/64" gap between the “toe” of the float and the bottom of the fuel bowl surface underneath. The float “toe” is the part of the float furthest from where the arm is attached. The secondary float can be adjusted to the point where there is a 13/64" gap between the “heel” of the float and the bottom of the fuel bowl surface underneath. The float “heel” is the part of the float closest to the point where the arm is attached.

[Bootybandit]

ok just now seeing this, I adjusted with it inverted and level with the bottom of the bowl. Then replaced the old power valve.  I now have a drip from the left Primary squirter, and a very rough idle that when I pull a vac line and give it air it revs up.  I adjusted the mix screws for more air but still bad idle.  Ill pull it again and adjust the float with the specs you sent me.  Any idea why it leaks into the manifold from a squirter?

[85lebaront2]

That tells me you are quite rich. Dripping from one side of the accelerator pump nozzle. Did you install the weighted needle under the pump nozzle? Can you listen to the air flow through the primary barrels at idle (a piece of 1/8 - 3/16" vacuum hose works well)? If there is a difference, even a small one, the throttle shaft may be twisted slightly. Also look for raw gas in the secondary throttle area with the engine running. That will make it rich as will a bad power valve or gasket.

[Bootybandit]

I didnt even touch the pump nozzle.  I will pull it again and adjust the floats and look at the pump nozzle.
Thanks for the help!!!!!

[Bootybandit]

Ok I used the hose to listen and the right side sounds deeper more throaty than the dribbling passenger side.  So what should I do there?  Then I  pulled it again changed the pump spray nozzle needle and seals. Should the secondary's have a spray nozzle too?  There isn't one.  Tomorrow I will adjust the floats.  What else should I do while I have it off?  Put the new Power valve back on?  I also have 2 new Fuel inlets but I dont know how to get the old ones off?

[mat in tn]

I keep reading along, yet I still do not see where you have removed the squirter and looked underneath the squirter hold down screw for the check weight.

[Bootybandit]

"I keep reading along, yet I still do not see where you have removed the squirter and looked underneath the squirter hold down screw for the check weight."  I changed this is this what your referring to?  Holley doesnt refer to these as squirters and I was confused as to what it was They call them Spray nozzles.  I also said it was dribbling from the squirter but it was actually dripping from the top of the carb right above the Front left I dont know what its called and its not labeled on the diagram.  But its dripping directly on the passenger side butterfly valve.  

[mat in tn]

yes, that is the part I was referring to. spray nozzle, squirter. many years of carb talk has led me to having many terms. it sounds as if you are describing dripping from the booster on the passenger side venturi. no two venturis are truly identical and once other common adjustments are done the only balancing act will be done by the idle/air mixture screws. I wonder how these are set and whether you removed the screws and flushed the passages with compressed carb spray. if these are not set correctly it may be that the base idle is on the verge of transitioning.

[Bootybandit]

Ive done much tinkering with them.  I will clean them out now when I set the floats.  I will set them to 1 and a half turns out and check the mixture with a vac gauge.  I'll update this evening when I get it put back together

[Bootybandit]

Now I find the fuel/air screws gasket is falling apart.  I give up for a while

[mat in tn]

many of the idle air screw gaskets are very small cork bushing style that get pressed into the metering block then the screw gets run into it. a tiny o ring should suffice for a temporary at least. it's not really to hold in gas as much as keeping air from being drawn in. but it will get gas contact even if its minimal.

[85lebaront2]

Bite the bullet and order a Holley kit.

[Bootybandit]

I believe your right.  I'm still concerned about what's in that port in the previous picture I literally looked like a nail head sticking out of the port. I tinkered with it and pushed it back in.  Any idea what the heck that is?  I saw a video where I guy says holley plugs a fuel port intentionally but I have no solid evidence of that.