Getting my AED 1000 HO carburetor ready for Cecil County. Awhile back, I bought 2 fuel bowls with the nice big site glasses. Much better than the standard AED bowls with the screw in plugs. I successfully removed the floats and needle/seat assemblies, accelerator pump diaphragms, and installed them in the new float bowls. I also installed jet extenders and a notched float in the back bowl. I was wondering about dry setting the float level, and if there was a spec for that that would get me in the ball park, and if it mattered about the type of float. The front float is brass, but the rear notched float is some sort of plastic. I know once I start the engine that the float levels should be adjusted so that fuel level is in the center of the site glass, correct? Any help on dry setting the floats? Do I lift the floats and measure from the top surface of the float to the top surface of the bowl?
brass and nitrophyl floats - with bowl upside down , adjust so top of float ( now facing down ) is basically level with top of bowl ( also now facing down ) . plastic floats are a little dif due to some kind of float equation but close to that . I don't think it made a dif with notched floats ? that should get ya close and started . and on standard bowls , wet and running ( bring rpm up till motor smooths out to get a good read ) I always just get the gas to start running over bottom site plug threads . sight glass style could be dif ? plus AED may specify something else ? specs are out in barn , will check the numbers later if I go out . edit : went out , it was buggin' me . ok , they actually had setting figures but for the side hung floats . it was the flip n level method for center hung . as a wet adjustment they actually recommended starting and stopping the motor to make adjustments while the motor was off ( which may be a little safer I guess but a whole lot more annoying ) , setting the level at or just below the sight plug hole . same primary and secondary . no mention of dif settings for notched floats . truthfully I usually just stuff a rag under bowl to catch any gas that runs out . there may be some fancy smancy gadget to do that . dry setting : plastic center hung floats are primary 5/16" , secondary 3/8" - inverted , measuring at rear center of float . wet setting same as above .
Thanks Del, I set it up according to those guidelines. The back notched float is some sort of plastic. Don't know what Duracon iso No: This is the E Bay ad, http://www.ebay.com/itm/17094374077...iewitem=&sspagename=ADME:L:OC:US:3160&vxp=mtr In any case, I set the float level in the back a bit higher, actually 5/16" from the top surface with the fuel bowl inverted.
duracon is the plastic style floats - will start out probably white but after time n use turn kind of a light brown color . the one in pic is a nitrophyl style float . bad gas , ethanol etc not good - I think it weakens the surface coating ( as a nick will also ) and allows gas to contaminate the float , usually making it heavier and therefore less accurate as far as float level . I kinda like the brass for that reason and the plastics are probably ok also . plus you can kinda shake n inspect those to see if they are leaking . but I think what you have is the only choice for a notched float . as a side note that carb work bench you have looks real comfy !
Thanks again, I guess I'll have to keep an eye on the float and make sure it doesn't degrade over time. I have the AED push on type jet extenders that don't require a notched float, but they are a real pain to get on, so I went with the traditional screw in jet extenders and that nitrophyl notched float. The carburetor is on my bed, but it hasn't been on the car for a year, so it is dry. Good thing I have no wife, it wouldn't go over big.:laugh:
I contacted the E Bay seller and asked about the float material. He claimed it was compatible with all fuels. Not sure how to tell the diiference between nitrophyl and plastic?
Got my AED carburetor squared away. Float levels look good. The only problem I had was the fuel inlet fittings. Both of them leaked. The metal washers that are supposed to seal them were bent a bit, I guess when I transferred them from my other fuel bowls to the new ones. What a pain in the:moonu: Anyway, I got a pair of nylon gaskets and installed them. The Speed shop counter guy said the nylon ones are more reliable and seal up better. We will see. Going down to Cecil County this Friday. Gonna run the car again and see if my larger exhaust picks the car up any. Gonna try running high stall for the whole run, and I am also going to use my GV to go through the traps in 2nd over instead of 3rd. That should let me RPM better through the traps.
Sure. I did pick up some. My best E.T was an 11.54, best MPH was a 115.89. The Q-jet picked up the most from last year, a solid 2 tenths and 2 MPH. The AED, not so much, but there was a tenth and not even 1 MPH. I'll post my 2013 and 2014 timeslips. I made 6 passes both years, Q-jet was the first 3 passes, AED, the second 3 passes. This year, the second run, I spun bad and lost 2 tenths 60'. That was a result of getting too far up on the converter (2500 RPM) and me lowering the tire pressure to 16 psi. This year, the car didn't like that, so I went back to 18 psi, and a 2000 RPM launch, and it hooked well consistently like that. On that second run, my hose hook came loose and bent my fan blade tips on the return road. I used vice grips to straighten the blades out as best I could and kept racing. After pass #6, I noticed coolant dripping onto the balancer. Thinking the fan imbalance took out the WP, I stopped racing and started packing up, and taking the DRs off. I didn't want to jeopardize my ride home. When I looked at it later, I realized that the bolt on the top of the water pump (that holds the alternator bracket/brace) had backed out enough so that the gasket was seeping and dripping down. I'm glad I stopped when I did, but I was just about to try using the GV to get through the traps at 6000 RPM, so I didn't get to try that. I will though. The car felt better with the bigger exhaust for sure, and it sounded great. Basically, the car ran 11.60's with the Q-jet, and 11.50's with the AED. My gas mileage went up also. On 1 leg of my trip home, I got 18 MPG. I could not believe it.
