carburetor curious

nicolette · 02-15-2003, 11:30 PM

hi all,
after much coaxing my '68 made it from southern california to idaho, laden down with as much junk as she could take. i'm very impressed!!. my carburetor seems to have gone out of whack on the trip up though. and i am trying desperately to find out exactly what kind of carburetor it is!! lol, i know silly quessie, but i honestly can't tell. there doesn't seem to be any tags on it anywhere. i don't think it is the original, although it may be. it is an autolite, which was rebuilt by holley (stickers all over it say that) and it has these numbers on it.....34R-5008B (around a circle)
6R
3514
B (in a raised circle)
DOPF......(with a couple of numbers i can't see)
under that.... 4530 OKA

i was thinking it was an autolite 1100, but my dad says no way. any help on this would be GREATLY appreciated.

also if you want to take a crack at it, the problem i am having with it, is the car will stall, just like its being turned off, no spluttering. this happens even while revving in park. although more often at low revs. (like at traffic lights)

the plan so far i guess will be to surrender her to a mechanic to adjust things. although i would much rather do as much as possible myself. unfortunately very limited finances!

i think perhaps the 1000 mile drive knocked a few things out of whack. anyways thankyou in advance!! i LOVE this place!

hobgoblin351 · 02-16-2003, 03:21 PM

I tried to check the part number, but my book only lists high performance stuff. It does sound like a ford part number though. Is it a 1v or a 2v? If it's a 1v, chances are that its the stock carb. You dont see many aftermarket highperformance 1 barrel carbs. lol Unless it's an exotic, like a weber or something.
As far as the stalling problems, it could be alot of things. Start with a basic tuneup. Fuel/air filters, plugs,wires,reset the timing, adjust the carb. It could be something simple, and those things you can do yourself in an afternoon. Good luck

nicolette · 02-16-2003, 07:08 PM

hobgoblin351, thanks so much!.
it is a 1v i think, i am pretty sure

...(it is the number of voltaris' right?) i'd be very happy if it was stock, as the rest of my car is, and i'm wanting to keep it as original as possible. i'll try those things you suggested, and thanks for the luck, i think i'm gonna need it!

hobgoblin351 · 02-17-2003, 12:43 PM

It's the number of "barrels" or venturi. Named after the guy who invented them, G.P. Venturi. I had the Holley book handy so I looked it up! lol You should get one of those repair books at the auto store. Chilton makes some but there are others. It'll guide you through basic maintence and stuff. Changing plugs and filters is simple stuff. But adjusting the carb is tricky. So read the book and folow it's instructions. I wish I could say I know alot about inline 6's and 1 barrel carbs but I dont. lol Oh, I dont know how green you are as far as working on cars, but when working on the carb Dont drop anything in! stuff a rag in there to make sure. Good Luck

Jeff65 · 02-18-2003, 04:19 PM

Some years ago, I had a Corvette and a Falcon. The Falcon was my daily driver and to be honest, I kinda liked her, "Farrah Falcon" was her name. I bought her for $750 and drove her for 70,000 miles before selling her. Thats before I gave her to my daughter for hs transportation...another story for sure!

Okay now you have the background here's the real story. Farrah used to like to sputter and run poorly sometimes for no reason at all. I checked everything, rebuilt the carb, the distributor, I mean I checked everything but Farrah being a girl just had a mind of her own.

One winter day, snow was on the ground and I was headed home from work. At a busy intersection Farrah started acting herself and decided it was time for a nervous breakdown. She sputtered, finally started and damn near killed me as the light turned red! I was furious...and somewhat scared even. Damn woman tried to kill me!

I was about a half mile from the local Ford dealer so I drove into the service bay and was met by the service writer. "How can I help you sir?" "This little car is going to kill me if I don't get her fixed...here's the story!" The service writer said, "Seems like you need a carb rebuild." I didn't tell him I'd already rebuilt the carburetor twice. He asked me to sign the service sheet after writing up the need for a carb rebuild. I told him I couldn't sign his service order. He asked why and I explained that I came in to get the car fixed, not rebuild the carb. All I want is the problem fixed, I don't care what it takes! He wrote under the carb rebuild, fix stalling problem. I signed the service order.

I got the dealer to take me home and went about my business as usual. Several days later I get this call from the dealer that Farrah is ready. I went to the dealer to pick up Farrah and decided the best thing was to take a test drive with the mechanic before accepting her back.

The mecanic agreed and off we went for the check ride. Farrah did her stuff at the very next intersection. Boy was I happy! Even Ford's ASC certified tech couldn't find the problem! Farrah went back to the Ford stable for another try.

Several days later after a big snowfall, Ford called me to say the car was ready. I went back and found the car still in a stall hooked up to a Sun Analyzer. The mecanic said, "I wanted to show you what the problem was!" He held up a wire splice! He said, "This fixed it!, a 5 cent splice!" He then explained the coil wire going to the firewall was broken inside the insulation from years of shake, rattle, and roll of the engine block. He finally found the problem by analyzing the coil current and realized it was very low. Once he knew what the problem was it only took a moment of checking the wiring harness to find the break.

Moral to the story...sometimes it isn't the carburetor!

As a side note to this, the mechanic rebuilt the carb then installed a new one when this didn't work. He installed a new distributor after some more troubleshooting. In the end, they changed just about everything but the engine. The last thing the mechanic said to me was, "I don't wanna ever see this little car again...take whatever parts are in the trunk and maintain it yourself!" Once at home I found half of the dealers parts inventory in my trunk. All for $110, the price of the rebuilt carburetor! I never had the nerve to take the car back. Farrah was well behaved for the rest of her life.

nicolette · 02-18-2003, 11:17 PM

oh wow Jeff65, what a story!, i love it!!! i'm still laughing!

thankyou VERY much, i will most definately check my own coil wire. i think that may be my problem!. i sure travelled some bumpy roads on the way to idaho, and its probably the original coil wire too. isn't it funny how these old cars are so full of personality, thats why i adore them so much!

i actually have a story like that of my own.
a couple of years ago, when i first got my stang, i was out for a driving lesson with my mom. yeah i know i learned late, but i wanted to learn in my very own stang!

, anyhow, as we turned a corner in a little quiet suburban street, the engine sputterd and died. turning the key got valient efforts from the starter motor, but nothing else. my mother was at this point swearing, and you know, being a mother!

(she didn't want me to get a mustang in the first place, nevermind an old slightly dented 4 coloured one!) anyways, we ended up pushing her (the car, not my mother! lol) out of the t intersection, and parking under a tree, as it was about a zillion degrees and i also have no air conditioning.

i tried again to start her, and she put forth her best effort yet, nearly catching and then letting forth a brilliant backfire complete with jet black exhaust cloud. i opened up the hood to check things out, and saw a wire, i hadn't noticed before. i wanted to play with it and see where it went , but me being completely green about cars and knowing my mother was about to explode, i just agreed to go with her to find a phone for triple a.

we walked about 10 blocks in the broiling sun before we found a pay phone, and then were told by a cheerful operator that there would be a 3-4 hour wait for a tow truck. so back we went and waited in silence for the towy. when he finally turned up,4 1/2 hours later, he didn't check anything under the hood, he said it wasn't 'done', so ok!, anyways, he towed us home.

later that day, when my father got home from work and heard the saga, he nearly wet his pants looking under the hood. it turns out one of the wires from the coil was shorting out against the engine block!. he adjusted and secured it, and my car started up like nothing ever happend!. i was so embarrassed!!! the only way i can console myself, is that i knew, that wire looked out of place! lol! i've learnt a bit more about cars since then, how can you not when you run an older beauty, but i'm still pretty green! thats why i LOVE this place!!!!

hey thankyou again too, hobgoblin351, i actually didn't know about not getting anything into the carburetor!. just as well i havent had a proper go at that yet!

i'll let you guys know how i get on. and i can't thank you enough for your help.

02-15-2003, 11:30 PM	#1
nicolette Registered Member Join Date: Jul 2001 Location: Anchorage, Alaska Posts: 63	carburetor curious hi all, after much coaxing my '68 made it from southern california to idaho, laden down with as much junk as she could take. i'm very impressed!!. my carburetor seems to have gone out of whack on the trip up though. and i am trying desperately to find out exactly what kind of carburetor it is!! lol, i know silly quessie, but i honestly can't tell. there doesn't seem to be any tags on it anywhere. i don't think it is the original, although it may be. it is an autolite, which was rebuilt by holley (stickers all over it say that) and it has these numbers on it.....34R-5008B (around a circle) 6R 3514 B (in a raised circle) DOPF......(with a couple of numbers i can't see) under that.... 4530 OKA i was thinking it was an autolite 1100, but my dad says no way. any help on this would be GREATLY appreciated. also if you want to take a crack at it, the problem i am having with it, is the car will stall, just like its being turned off, no spluttering. this happens even while revving in park. although more often at low revs. (like at traffic lights) the plan so far i guess will be to surrender her to a mechanic to adjust things. although i would much rather do as much as possible myself. unfortunately very limited finances! i think perhaps the 1000 mile drive knocked a few things out of whack. anyways thankyou in advance!! i LOVE this place! __________________ 1968 coupe, straight 6 and proud of it!

02-16-2003, 03:21 PM	#2
hobgoblin351 Registered Member Join Date: Sep 2002 Location: NYC Posts: 245	I tried to check the part number, but my book only lists high performance stuff. It does sound like a ford part number though. Is it a 1v or a 2v? If it's a 1v, chances are that its the stock carb. You dont see many aftermarket highperformance 1 barrel carbs. lol Unless it's an exotic, like a weber or something. As far as the stalling problems, it could be alot of things. Start with a basic tuneup. Fuel/air filters, plugs,wires,reset the timing, adjust the carb. It could be something simple, and those things you can do yourself in an afternoon. Good luck __________________ 1970 Stang Conv: en:Boss351 (balanced/blueprinted) mech cam(240*@.050/.540 lift) Scrw in studs/comp cams rllr rkr Mldn valves 2.19in 1.71ex ported polished cc'd hrdnd ex Keith Black FT pistons(10.25/1) Weiand Excellorator manifold Holley700 DP mech 2nds MSD 6 box and Dis Headers/2 1/2 inch duels tr: modified FMX re:9-inch/3.89 limited slip

02-16-2003, 07:08 PM	#3
nicolette Registered Member Join Date: Jul 2001 Location: Anchorage, Alaska Posts: 63	thankyou! hobgoblin351, thanks so much!. it is a 1v i think, i am pretty sure ...(it is the number of voltaris' right?) i'd be very happy if it was stock, as the rest of my car is, and i'm wanting to keep it as original as possible. i'll try those things you suggested, and thanks for the luck, i think i'm gonna need it! __________________ 1968 coupe, straight 6 and proud of it!

02-17-2003, 12:43 PM	#4
hobgoblin351 Registered Member Join Date: Sep 2002 Location: NYC Posts: 245	It's the number of "barrels" or venturi. Named after the guy who invented them, G.P. Venturi. I had the Holley book handy so I looked it up! lol You should get one of those repair books at the auto store. Chilton makes some but there are others. It'll guide you through basic maintence and stuff. Changing plugs and filters is simple stuff. But adjusting the carb is tricky. So read the book and folow it's instructions. I wish I could say I know alot about inline 6's and 1 barrel carbs but I dont. lol Oh, I dont know how green you are as far as working on cars, but when working on the carb Dont drop anything in! stuff a rag in there to make sure. Good Luck __________________ 1970 Stang Conv: en:Boss351 (balanced/blueprinted) mech cam(240*@.050/.540 lift) Scrw in studs/comp cams rllr rkr Mldn valves 2.19in 1.71ex ported polished cc'd hrdnd ex Keith Black FT pistons(10.25/1) Weiand Excellorator manifold Holley700 DP mech 2nds MSD 6 box and Dis Headers/2 1/2 inch duels tr: modified FMX re:9-inch/3.89 limited slip

02-18-2003, 11:17 PM	#6
nicolette Registered Member Join Date: Jul 2001 Location: Anchorage, Alaska Posts: 63	oh wow Jeff65, what a story!, i love it!!! i'm still laughing! thankyou VERY much, i will most definately check my own coil wire. i think that may be my problem!. i sure travelled some bumpy roads on the way to idaho, and its probably the original coil wire too. isn't it funny how these old cars are so full of personality, thats why i adore them so much! i actually have a story like that of my own. a couple of years ago, when i first got my stang, i was out for a driving lesson with my mom. yeah i know i learned late, but i wanted to learn in my very own stang! , anyhow, as we turned a corner in a little quiet suburban street, the engine sputterd and died. turning the key got valient efforts from the starter motor, but nothing else. my mother was at this point swearing, and you know, being a mother! (she didn't want me to get a mustang in the first place, nevermind an old slightly dented 4 coloured one!) anyways, we ended up pushing her (the car, not my mother! lol) out of the t intersection, and parking under a tree, as it was about a zillion degrees and i also have no air conditioning. i tried again to start her, and she put forth her best effort yet, nearly catching and then letting forth a brilliant backfire complete with jet black exhaust cloud. i opened up the hood to check things out, and saw a wire, i hadn't noticed before. i wanted to play with it and see where it went , but me being completely green about cars and knowing my mother was about to explode, i just agreed to go with her to find a phone for triple a. we walked about 10 blocks in the broiling sun before we found a pay phone, and then were told by a cheerful operator that there would be a 3-4 hour wait for a tow truck. so back we went and waited in silence for the towy. when he finally turned up,4 1/2 hours later, he didn't check anything under the hood, he said it wasn't 'done', so ok!, anyways, he towed us home. later that day, when my father got home from work and heard the saga, he nearly wet his pants looking under the hood. it turns out one of the wires from the coil was shorting out against the engine block!. he adjusted and secured it, and my car started up like nothing ever happend!. i was so embarrassed!!! the only way i can console myself, is that i knew, that wire looked out of place! lol! i've learnt a bit more about cars since then, how can you not when you run an older beauty, but i'm still pretty green! thats why i LOVE this place!!!! hey thankyou again too, hobgoblin351, i actually didn't know about not getting anything into the carburetor!. just as well i havent had a proper go at that yet! i'll let you guys know how i get on. and i can't thank you enough for your help. __________________ 1968 coupe, straight 6 and proud of it!

02-18-2003, 04:19 PM	#5
Jeff65 Registered Member Join Date: Jul 2002 Location: Oklahoma City Posts: 208	Some years ago, I had a Corvette and a Falcon. The Falcon was my daily driver and to be honest, I kinda liked her, "Farrah Falcon" was her name. I bought her for $750 and drove her for 70,000 miles before selling her. Thats before I gave her to my daughter for hs transportation...another story for sure! Okay now you have the background here's the real story. Farrah used to like to sputter and run poorly sometimes for no reason at all. I checked everything, rebuilt the carb, the distributor, I mean I checked everything but Farrah being a girl just had a mind of her own. One winter day, snow was on the ground and I was headed home from work. At a busy intersection Farrah started acting herself and decided it was time for a nervous breakdown. She sputtered, finally started and damn near killed me as the light turned red! I was furious...and somewhat scared even. Damn woman tried to kill me! I was about a half mile from the local Ford dealer so I drove into the service bay and was met by the service writer. "How can I help you sir?" "This little car is going to kill me if I don't get her fixed...here's the story!" The service writer said, "Seems like you need a carb rebuild." I didn't tell him I'd already rebuilt the carburetor twice. He asked me to sign the service sheet after writing up the need for a carb rebuild. I told him I couldn't sign his service order. He asked why and I explained that I came in to get the car fixed, not rebuild the carb. All I want is the problem fixed, I don't care what it takes! He wrote under the carb rebuild, fix stalling problem. I signed the service order. I got the dealer to take me home and went about my business as usual. Several days later I get this call from the dealer that Farrah is ready. I went to the dealer to pick up Farrah and decided the best thing was to take a test drive with the mechanic before accepting her back. The mecanic agreed and off we went for the check ride. Farrah did her stuff at the very next intersection. Boy was I happy! Even Ford's ASC certified tech couldn't find the problem! Farrah went back to the Ford stable for another try. Several days later after a big snowfall, Ford called me to say the car was ready. I went back and found the car still in a stall hooked up to a Sun Analyzer. The mecanic said, "I wanted to show you what the problem was!" He held up a wire splice! He said, "This fixed it!, a 5 cent splice!" He then explained the coil wire going to the firewall was broken inside the insulation from years of shake, rattle, and roll of the engine block. He finally found the problem by analyzing the coil current and realized it was very low. Once he knew what the problem was it only took a moment of checking the wiring harness to find the break. Moral to the story...sometimes it isn't the carburetor! As a side note to this, the mechanic rebuilt the carb then installed a new one when this didn't work. He installed a new distributor after some more troubleshooting. In the end, they changed just about everything but the engine. The last thing the mechanic said to me was, "I don't wanna ever see this little car again...take whatever parts are in the trunk and maintain it yourself!" Once at home I found half of the dealers parts inventory in my trunk. All for $110, the price of the rebuilt carburetor! I never had the nerve to take the car back. Farrah was well behaved for the rest of her life.