 62chevy427
"7th Year" Silver Supporting Member
Posts: 1499
Loc: laurens sc
Reg: 04-13-06
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05-12-12 08:06 AM - Post#2225111
i am working on a 64 283 with the original 4bbl carb and 40k miles. i rebuild the carb and it runs super. the only problem,after it sits a couple of days, it is difficult to start. choke is adjusted and working. squirt a little gas in it andit starts right up. i need some ideas where to look for a gas leak. thanks
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
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Allan In NE
Contributor
Posts: 901
Reg: 12-27-11
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05-12-12 08:26 AM - Post#2225120
In response to 62chevy427
I take the 'full' carb and set it on my vice. In about 10 minutes you can usually see where it is seeping.
Either the lead plugs in the various channels or a porous body.
Allan
| Lifelong GM automatic transmission specialist |
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Allan In NE
Contributor
Posts: 901
Reg: 12-27-11
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05-12-12 08:28 AM - Post#2225121
In response to 62chevy427
I take the 'full' carb and set it on my vice. In about 10 minutes you can usually see where it is seeping.
Either a lead plug in one of the various channels, or a porous body.
Allan
| Lifelong GM automatic transmission specialist |
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Mad Joe
Contributor
Posts: 391
Loc: Wichita Falls, Tx.
Reg: 05-09-07
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05-12-12 09:10 AM - Post#2225130
In response to 62chevy427
Just going off memory since I haven't owned a late great in years, but I'm 99% sure Chevy did not use 4 barrel carbs on full size cars with 283 engines in '64. If you got a factory 4 bbl in your '64 Impala, it was attached to a 327 or 409. Many like myself changed their 283 to 4 bbl.
Just setting the record straight.
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del.impala
Contributor
Posts: 337
Loc: delaware
Reg: 04-13-11
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05-12-12 09:27 AM - Post#2225136
In response to Mad Joe
In 1964 as an extra cost option they did have a 220hp 283 which was a 4Bbl carb,I believe was used with optional factory installed air conditioning. You might be experiencing carb drainback because with the fuel systems at that time operating at anywhere from 4 to 5 to almost 6 p s I, if it was not driven everyday the fuel pressure would relax and you would have to refill re pressurise a fuel system by turning it over a few moments. and of course you have fuel evaporation and the fuel now with ethanol which doesn't stick around in the fuel bowls like the old fuels used to. So long story short you may have to just turn it over for a few seconds each time you wanna drive it and then pump it.
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Mad Joe
Contributor
Posts: 391
Loc: Wichita Falls, Tx.
Reg: 05-09-07
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05-12-12 09:40 AM - Post#2225140
In response to del.impala
del:
Are you sure that engine was available in an Impala? I thought that was possibly a Malibu engine.
If you are correct, then it is different information than I had back in the mid 60s. My understanding was in '64 Impalas, no 283 came with a 4 bbl.
Not wanting to argue, just trying to learn.
btw, my factory air '64 came with a 2 bbl.
Edited by Mad Joe on 05-12-12 09:41 AM. Reason for edit: No reason given.
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Mad Joe
Contributor
Posts: 391
Loc: Wichita Falls, Tx.
Reg: 05-09-07
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05-12-12 09:49 AM - Post#2225150
In response to Mad Joe
Scroll down about 3/4 of the way and you will see the engin/carb combos.
http://www.oldride.com/library/1964_chevrole t_impa...
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motorman
Super Senior Member
Posts: 5019
Loc: south western pa.
Reg: 01-25-00
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05-12-12 09:51 AM - Post#2225152
In response to 62chevy427
the way i check for main body leaks is remove the throttle body and set the main body on a clean sheet of white paper. add lacquer thinner to the float bowls and check to see if any thinner wet spots shows up on the paper
| retired race engine builder,former NASCAR tech inspector. new corvettes owned 1959,1962,1963,1964,1965, 1966,1997,1999,2002,2005, 2008 plus 30+ other chevy cars and trucks along the way |
Edited by motorman on 05-12-12 09:52 AM. Reason for edit: No reason given.
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62chevy427
"7th Year" Silver Supporting Member
Posts: 1499
Loc: laurens sc
Reg: 04-13-06
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05-12-12 11:47 AM - Post#2225178
In response to Mad Joe
the engine is actually in a 55 chevy.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
|
 Richard Martin
Valued Contributor
Posts: 4309
Loc: Davis Islands, Florida
Reg: 06-12-03
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05-12-12 11:53 AM - Post#2225179
In response to Mad Joe
del:
Are you sure that engine was available in an Impala? I thought that was possibly a Malibu engine.
If you are correct, then it is different information than I had back in the mid 60s. My understanding was in '64 Impalas, no 283 came with a 4 bbl.
Not wanting to argue, just trying to learn.
btw, my factory air '64 came with a 2 bbl.
Your information is spot-on. The full-size '64 Chevrolet was not available with a 4-bbl carb 283. However the '64 Chevelle and '64 Chevy II/Nova were. 1964 big-Chevy standard and optional engines:
http://www.oldcarbrochures.com/static/NA/Chevrolet...
Richard
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del.impala
Contributor
Posts: 337
Loc: delaware
Reg: 04-13-11
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05-12-12 01:46 PM - Post#2225198
In response to Richard Martin
On this i will agree to disagree. In the late 70's i removed a 4bbl carb and intake from a 64 I believe four door impala.at the time they appeared OE to this car. I believe I can still get to the carb and intake for a check of numbers on intake and carb.stay tuned.
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Richard Martin
Valued Contributor
Posts: 4309
Loc: Davis Islands, Florida
Reg: 06-12-03
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05-12-12 01:56 PM - Post#2225201
In response to del.impala
On this i will agree to disagree. In the late 70's i removed a 4bbl carb and intake from a 64 I believe four door impala.at the time they appeared OE to this car. I believe I can still get to the carb and intake for a check of numbers on intake and carb.stay tuned.
Your choice and right to disagree but in my opinion you can't make a judgement call on someone's 10 year old used car.
I make my decisions from actually selling new 1964 Chevrolets at my Uncle's dealership and ALL the 1964 Chevrolet printed information such as this:
http://www.oldcarbrochures.com/static/NA/Chevrolet...
The RPO for the 4bbl. carb 283 is L77 and it became available as an option on the 1965 full-size Chevy mid-year around the same time the 409 engines were dropped and the 396 engine was introduced.
Richard
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arnieg141
Dedicated Enthusiast
Posts: 6082
Loc: nj
Reg: 10-06-08
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05-12-12 02:48 PM - Post#2225205
In response to 62chevy427
claus it's not the carb it's the new fuels we use after a car sites a few days evaporation in bowl.being there not electrick fuel pumps the bowl is not filled right away. just dont press on gas pedal turn over car a few times then again.now push pedal down to set chock and will start right up
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
Edited by arnieg141 on 05-12-12 02:49 PM. Reason for edit: No reason given.
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62chevy427
"7th Year" Silver Supporting Member
Posts: 1499
Loc: laurens sc
Reg: 04-13-06
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05-12-12 04:29 PM - Post#2225228
In response to arnieg141
thanks. i'll give that a shot. if necessry,we can install an electric pump. may even wire it so it only runs with the starter engaged.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
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arnieg141
Dedicated Enthusiast
Posts: 6082
Loc: nj
Reg: 10-06-08
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05-12-12 05:25 PM - Post#2225248
In response to 62chevy427
no need realy for the elec.fuel pump. just hit the starter quick just enough to spin motor a little like 2 turns ! repete that -then push pedal to floor to set choke and start right up
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
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f.i.57chevynut
Frequent Contributor
Posts: 1194
Loc: Granada Hills, CA
Reg: 03-04-09
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05-14-12 12:57 AM - Post#2225678
In response to 62chevy427
I have the same problem with all my 57's. The gas seems to evaporate and I have to crank the starter until the pump refills the carb. If I drive the car every day I don't have the problem.
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arnieg141
Dedicated Enthusiast
Posts: 6082
Loc: nj
Reg: 10-06-08
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05-14-12 04:15 AM - Post#2225695
In response to f.i.57chevynut
tom found so many guy's rebuilding carbs and adjusting for nothing.we found it a long time ago in the 49 to 54 section.just the taping the starter let off and tap againg filled the bowl and start right up. just because of new fuel blends in these older cars. drived every one nuts that just takeing a car sitting a few days and starting like this solved 90% of the carb start problem 
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
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62chevy427
"7th Year" Silver Supporting Member
Posts: 1499
Loc: laurens sc
Reg: 04-13-06
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05-15-12 07:23 PM - Post#2226330
In response to arnieg141
i tried that. did not work. spun it in short spurts until the battery was almost dead. no gas. squirted a little in the carb and some in the bowl and it fired right up. bought a electric pump today. am going to install it with a toggle switch so it can be cut off if desired.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
|
arnieg141
Dedicated Enthusiast
Posts: 6082
Loc: nj
Reg: 10-06-08
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05-16-12 03:45 AM - Post#2226413
In response to 62chevy427
sorry did'nt work .good luck with the electick pump
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
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 1963SBHD
"3rd Year" Gold Supporting Member
Posts: 131
Loc: south carolina
Reg: 09-01-11
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05-17-12 10:00 PM - Post#2227051
In response to arnieg141
Had the same problem with mine, went through the carb with new gaskets, adjusted and snugged everything up and still had to spin over and pump. Changed to 100% unleaded and electric pump with a new demon carb and not a problem at all. Hooked a switch with a LED red and green for off and on and that is hooked to the key. Turn on the key, the red light comes on, flip the switch to green and verrrooom. Starts just fine. Also put some fuel stabilizer in just for insurance. Even though the 100% unleaded is harder to find, I use it when I can or premium unleaded, Amoco or Shell
while traveling. When we travel with our car club we map out a route that gives us 100% unleaded gas all the way there and back. Good luck with yours...and run a filter on the gas line.
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62chevy427
"7th Year" Silver Supporting Member
Posts: 1499
Loc: laurens sc
Reg: 04-13-06
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05-18-12 08:17 PM - Post#2227382
In response to 1963SBHD
seems like the way to go.not too much trouble to install and not too expensive,either. i usually only put a red or amber light to indicate the pump is on,but the red/green is a good idea. the pump i bought has a filter before the pump and i always run another in or near the carb.
56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
11 malibu (new) |
Edited by 62chevy427 on 05-18-12 08:18 PM. Reason for edit: No reason given.
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arnieg141
Dedicated Enthusiast
Posts: 6082
Loc: nj
Reg: 10-06-08
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05-21-12 07:19 AM - Post#2228159
In response to 62chevy427
how did you final fix problem
| GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison |
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