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Floats for a Carter AVS? #165243 12/10/08 02:09 AM 12/10/08 02:09 AM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Trying to rebuild the AVS from my '70 300, and realized one of the floats is cracked. Pretty badly at that. Anyhow, I was going to buy a new set of Edelbrock ones from Summit Racing, but they list them for AFB AND SVS carbs, as well as Edelbrock ones. I know the AVS and current Edelbrocks are about the same, but I was under the impression the AFBs are different. Can anyone help me? Are these the right floats for my carb? http://store.summitracing.com/partdetail...mp;autoview=sku Part number on my carb is MO 6125S. Unfortunately, I don't even have the floats handy to compare them. If those aren't right, could someone point me in the direction of the correct ones? Thanks! [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165244 12/10/08 04:46 AM 12/10/08 04:46 AM
Joined: Dec 2003 Posts: 4,951 northwest USA N NANKET master
NANKET master N Joined: Dec 2003 Posts: 4,951 northwest USA	FYI You have the wrong carb for a 70 440, a 6125 is for a 1971 383.

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165245 12/10/08 05:08 AM 12/10/08 05:08 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: Trying to rebuild the AVS from my '70 300, and realized one of the floats is cracked. Pretty badly at that. Anyhow, I was going to buy a new set of Edelbrock ones from Summit Racing, but they list them for AFB AND SVS carbs, as well as Edelbrock ones. I know the AVS and current Edelbrocks are about the same, but I was under the impression the AFBs are different. Can anyone help me? Are these the right floats for my carb? http://store.summitracing.com/partdetail...mp;autoview=sku Part number on my carb is MO 6125S. Unfortunately, I don't even have the floats handy to compare them. If those aren't right, could someone point me in the direction of the correct ones? Thanks! Can't tell in pic. The AVS floats are taller. You can heat the leaking brass float, stick it in water, and see where the bubbles come from to spot the leak. Then resolder where it's leaking. Here's the one you need 4869701-05SDswap0025.JPG (76 downloads)

Re: Floats for a Carter AVS? [Re: autoxcuda] #165246 12/10/08 12:12 PM 12/10/08 12:12 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: Can't tell in pic. The AVS floats are taller. You can heat the leaking brass float, stick it in water, and see where the bubbles come from to spot the leak. Then resolder where it's leaking. Here's the one you need One I have is waaaaay beyond repair. I don't need a hot water test to show me a ginormous 3 mm wide, 2 cm long crack. Do you know where I can find the correct float? And I figured the carb wouldn't be the original. Is there any reason this won't work properly on a 440 though? [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165247 12/10/08 12:22 PM 12/10/08 12:22 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	I have in the distant past made an AFB float work in an AVS and the pic from the Summit site looks like the old AFB float.

Re: Floats for a Carter AVS? [Re: Jim_Lusk] #165248 12/10/08 01:23 PM 12/10/08 01:23 PM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: I have in the distant past made an AFB float work in an AVS and the pic from the Summit site looks like the old AFB float. Now that I look through my carbs... I have both short and tall one in there. Just get them to match side to side. Play with the tongs to get the spec'd droop and rise float settings.

Re: Floats for a Carter AVS? [Re: autoxcuda] #165249 12/10/08 01:27 PM 12/10/08 01:27 PM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	i think you can still get them at local part store http://www.partsamerica.com/ProductList.aspx?parttype=429&ptset=A&searchfor=Carburetor+Float

Re: Floats for a Carter AVS? [Re: autoxcuda] #165250 12/10/08 01:54 PM 12/10/08 01:54 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: Quote: I have in the distant past made an AFB float work in an AVS and the pic from the Summit site looks like the old AFB float. Now that I look through my carbs... I have both short and tall one in there. Just get them to match side to side. Play with the tongs to get the spec'd droop and rise float settings. See, I wouldn't know how to change the settings on it. Still don't know enough about carbs. ops: Seriously, is there a part # or something so if I ordered them from someone I'd know I have the right part? [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165251 12/10/08 02:08 PM 12/10/08 02:08 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	I just talked to a guy at a carb shop that told me that I cannot use a AFB float, or a newer Carterbrock float, and that there were 4 different original AVS floats from his memory, but wouldn't tell me which one I needed unless I bought a $200 rebuild kit from him that included them. [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165252 12/10/08 02:16 PM 12/10/08 02:16 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Poking around, I think this is the correct one for me, Carter float #F34. Anybody know? [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165253 12/10/08 02:28 PM 12/10/08 02:28 PM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: I just talked to a guy at a carb shop that told me that I cannot use a AFB float, or a newer Carterbrock float, and that there were 4 different original AVS floats from his memory, but wouldn't tell me which one I needed unless I bought a $200 rebuild kit from him that included them. I have a holley rebuilt 6125 at home. Runs fine. I'll check the float in it. I'm pretty sure its that Napa 2-426. Std rebuilt AVS kit w/o floats is like $40-$50. Some carb guys are p@#$ks. One in MO once wouldn't sell me anything until I gave him some statement that carb was for off road application or some stupid stuff. Another rebuilt a holley for me and when I asked for the old parts, they tore the gaskets, like it was illigal to reuse them. Quote: See, I wouldn't know how to change the settings on it. Still don't know enough about carbs. ops: Seriously, is there a part # or something so if I ordered them from someone I'd know I have the right part? If you don't know how to adjust float, this question seems moot. I think if you asked here in Q and A you could learn, IF you are willing?? Do you have a 69-71 Factory manual? Someone here may be able to send you a scan of the carb section.

Re: Floats for a Carter AVS? [Re: autoxcuda] #165254 12/10/08 02:32 PM 12/10/08 02:32 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	I wasn't really aware that floats could be adjusted. All I know is the ones I have are cracked and need to be replaced. :shrug: I would like to learn, yes. I guess I have a lot to do though, haha... Yeah, I've realized quite a few carb people are nuts. I've been having some weird conversations trying to figure this out. [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165255 12/10/08 02:32 PM 12/10/08 02:32 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	And I have a '70 manual, but if this is a '71 carb, would it help? I guess I gotta peek through it... [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165256 12/10/08 03:01 PM 12/10/08 03:01 PM
Joined: Jun 2003 Posts: 21,428 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,428 It's a dry heat	float # FL97 Standard List price is just under $18

Re: Floats for a Carter AVS? [Re: gtx6970] #165257 12/10/08 03:27 PM 12/10/08 03:27 PM
Joined: Jan 2003 Posts: 9,436 Blair County,PA 62maxwgn master
62maxwgn master Joined: Jan 2003 Posts: 9,436 Blair County,PA	The size of the float makes no difference as long as the level is correct.The difference is in the tang that contacts the needle/seat housing.Bottom is AVS,top two AFB. 4870397-Float2.JPG (122 downloads)

Re: Floats for a Carter AVS? [Re: 62maxwgn] #165258 12/10/08 04:19 PM 12/10/08 04:19 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	What sort of measurements are there to make sure it's in spec? I'm confused, you just bend the tabs until it sits where you want it to then? What does this effect? I really do appreciate the info, I'm not from a family of car people, so I've never had anyone to really teach me any of this sort of stuff. Thanks. Oh, and is the Standard part number above definitely the correct one? [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165259 12/10/08 04:43 PM 12/10/08 04:43 PM
Joined: Dec 2004 Posts: 1,061 New Mexico D dmerc super stock
dmerc super stock D Joined: Dec 2004 Posts: 1,061 New Mexico	You are not yet ready to walk on the ricepaper grasshopper. Seek the wisdom of carb book and learn the ways of venturi and float....

Re: Floats for a Carter AVS? [Re: dmerc] #165260 12/10/08 05:08 PM 12/10/08 05:08 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	With the float level setting where you want it you want the tang to be contacting the needle at pretty close to a 90 degree angle. live every 24 hour block of time like it's your last day on earth

Re: Floats for a Carter AVS? [Re: RapidRobert] #165261 12/10/08 06:51 PM 12/10/08 06:51 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	There are two settings: Float level Float drop If you go through your manual you will get an idea of how they are set. Float level is set first with the carb air horn upsidedown. This is the level that will close off the incoming fuel. Float drop is the distance the float will drop to open the needle valve to let fuel in.

Re: Floats for a Carter AVS? [Re: Jim_Lusk] #165262 12/10/08 08:45 PM 12/10/08 08:45 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: There are two settings: Float level Float drop If you go through your manual you will get an idea of how they are set. Float level is set first with the carb air horn upsidedown. This is the level that will close off the incoming fuel. Float drop is the distance the float will drop to open the needle valve to let fuel in. As usual, Jim saves the day. Thanks for the info, I'm gonna go read through the manual a bit. I did try a whole bunch of local parts stores. No one can find floats for me. One could find them and can't order them, another pulled out a carb book, and under the part # on my carb, there is no float part # listed at all. Float part numbers listed for everything else BUT mine. Typical. Any other suggestions? I got a few numbers to some local private folks who might, but I thought I'd ask again here. [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: 62maxwgn] #165263 12/11/08 01:29 AM 12/11/08 01:29 AM
Joined: Jan 2003 Posts: 27,468 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,468 So Cal	Quote: The size of the float makes no difference as long as the level is correct.The difference is in the tang that contacts the needle/seat housing.Bottom is AVS,top two AFB. I think I have some of those AFB types in my AVS. I can get the right float height numbers, closed and droop.

Re: Floats for a Carter AVS? [Re: autoxcuda] #165264 12/11/08 10:20 AM 12/11/08 10:20 AM
Joined: Aug 2004 Posts: 3,333 MARYLAND 69Cuda340S master
69Cuda340S master Joined: Aug 2004 Posts: 3,333 MARYLAND	To learn about that carb I'd start by getting a book such as the following: http://www.mre-books.com/sa130/sa130_2.html

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165265 12/11/08 10:22 AM 12/11/08 10:22 AM
Joined: Aug 2004 Posts: 3,333 MARYLAND 69Cuda340S master
69Cuda340S master Joined: Aug 2004 Posts: 3,333 MARYLAND	Quote: Oh, and is the Standard part number above definitely the correct one? If the info is coming from Bill at A&M you can be sure its right.

Re: Floats for a Carter AVS? [Re: 69Cuda340S] #165266 12/11/08 02:05 PM 12/11/08 02:05 PM
Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN R Rug_Trucker I Live Here
Rug_Trucker I Live Here R Joined: Jan 2003 Posts: 14,610 Not2farfromNashville, TN	That carb you have is in the 600cfm range. The 300 would have had a HP 440 carb in the 725-750cfm range. It will run good and be pretty spunky on the lower end. Upper range? It may fall on it's face. Are you racing, or just cruising? It should MPG a little better than the bigger one. "The only thing to do for triumph of evil is for good men to do nothing" "NUNQUAM NON PARATUS!"

Re: Floats for a Carter AVS? [Re: Rug_Trucker] #165267 12/11/08 02:29 PM 12/11/08 02:29 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: That carb you have is in the 600cfm range. The 300 would have had a HP 440 carb in the 725-750cfm range. It will run good and be pretty spunky on the lower end. Upper range? It may fall on it's face. Are you racing, or just cruising? It should MPG a little better than the bigger one. Currently, it's a big cruiser. I like to beat on it a bit, but it's no racecar. 727 with a shiftkit, 2.76 open rear end. It sucks at the bottom end, does pretty well up top. It never stops winding out. I'm sure it can't do 110 MPH thanks to it's aerodynamics, but it's a lot of fun up top. Eventually, I'll do something else, but for now I just want it to be driveable again. :shrug: [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165268 12/11/08 02:35 PM 12/11/08 02:35 PM
Joined: Jan 2003 Posts: 9,436 Blair County,PA 62maxwgn master
62maxwgn master Joined: Jan 2003 Posts: 9,436 Blair County,PA	Quote: I'm sure it can't do 110 MPH thanks to it's aerodynamics, but it's a lot of fun up top. /quote] You just may be surprised!

Re: Floats for a Carter AVS? [Re: Stationwagonguy] #165269 12/11/08 02:39 PM 12/11/08 02:39 PM
Joined: Jun 2003 Posts: 21,428 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,428 It's a dry heat	Quote: Oh, and is the Standard part number above definitely the correct one? That # came right out of the standard parts manual if you use crossover book , all bets are off.

Re: Floats for a Carter AVS? [Re: gtx6970] #165270 12/11/08 03:28 PM 12/11/08 03:28 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	With your weight/gearing that size of carb will work fine for you. I just stopped by my parts house & they show in the standard "hygrade" brand a FL98 float for an AFB & 2 floats for AVS's an FL95 and a FL97. After reading prior posts I dont know if his book was a crossover manual or not live every 24 hour block of time like it's your last day on earth

Re: Floats for a Carter AVS? [Re: 62maxwgn] #165271 12/11/08 04:10 PM 12/11/08 04:10 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: Quote: I'm sure it can't do 110 MPH thanks to it's aerodynamics, but it's a lot of fun up top. You just may be surprised! Haha, I know the speedo is off, but I've put is well past the marked 120 on there. Whether I was really going that fast, who knows.

Re: Floats for a Carter AVS? [Re: gtx6970] #165272 12/11/08 04:10 PM 12/11/08 04:10 PM
Joined: Jan 2004 Posts: 803 Zebulon S Stationwagonguy OP A Closet Buick Man
Stationwagonguy OP A Closet Buick Man S Joined: Jan 2004 Posts: 803 Zebulon	Quote: Quote: Oh, and is the Standard part number above definitely the correct one? That # came right out of the standard parts manual if you use crossover book , all bets are off. Cool, thanks Bill! Gonna go look it up. [image][/image] Bob SWG '68 Chrysler Town & Country, 'Katy Jo' '70 Chrysler 300 2-door '78 Impala 2-door

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