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08-26-2002, 08:02 AM | #1 |
Like a Rock!
Join Date: May 2002
Location: USA
Posts: 1,092
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2 barrel carb rebuild- how hard is it to do?
How hard is it to rebuild a stuttering 2 barrel carb?. When you mash the gas it stalls and I guess it needs rebuilding.
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69 LWB Runs great - work in progress Mess with me and you mess with the whole trailer park! |
08-26-2002, 10:26 AM | #2 |
Saving 1 truck at a time!
Join Date: Aug 2001
Location: Kent, WA
Posts: 6,465
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Rebuild
I did mine with no problems once you figure out how to connect the fuel valve inlet/outlet poppet clip to the float...only works parttime if you do not get it connected properly. The next toughest task is figuring out what parts to use since the rebuild kit comes with parts for 100 different varieties of carbs ($16.95@ NAPA). Don't destroy your gaskets when removing them so you can match them up closely.
3. The chart for determining the float height and drop height is a little confusing but can be done. I. Get a big clean work area to lay out the carb and parts as you disassemble it. 2. Clean it with carb cleaner to get all the crud from the bottom of the bowl etc. 3. Go slowly and you will have no problems. Best of luck...it is pretty easy.
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'68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) |
08-26-2002, 02:25 PM | #3 |
Senior Member
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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Yeah, it's pretty simple once you get an angle on replacement parts that don't come in the kit. First, figure out exactly what rebuild kit you need. NAPA gave me the wrong kit, and I wasted a lot of time and energy. Sometimes the numbers don't point to the right parts. In my case I kept trying to find 2bbl parts for a 2bbl that goes on a 350. Turns out mine was for a 327. The numbers are a little different.
Another thing is NAPA won't have replacement parts like the tiny screws that go in your throttle plates, vaccuum pull-offs, choke rods, and bushings for the throttles. You'll have to open the yellow pages and look for a place that will supply you the parts. An outfit in Seattle called Carburetors Unlimited saved my a$$ bigtime. I invented a good way to keep track of parts, too. I divided the table into sections. Each section of the carb had its own section on the table. I went in one order taking it apart, and I went in the opposite order putting it back together. Also, take plenty of pictures of the choke and throttle linkages so you won't get goofed up. Let us know if you need help.
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
08-26-2002, 04:33 PM | #4 |
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Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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Good info here, but don't take apart the throttle plates unless you have worn throttle shafts/housings. Take carb apart as numbered in idiot sheet and lay out parts in order of removal on a large clean work surface. Anything that may look confusing later, make notes and sketches to jog your memory. Kits don't come with a new float, and it's highly recomended you replace the float on a 30 year old carb. Don't forget the fuel filter!
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
08-27-2002, 08:26 AM | #5 |
1969 Custom 30 wrecker
Join Date: Sep 2001
Location: Pottsville, Pa
Posts: 2,611
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Pick up one of those 1 gallon carb cleaner cans and after taking the carb apart, soak all your parts overnight. (available at most auto parts stores-Advance auto for sure)
The hesitating is probably due to a worn accelerator pump which is included in the kit. The rest of the parts you'll use are just gaskets and a needle/seat and a check ball. Be sure to check the float by shaking it. When they go bad, they get a hole and take on fuel. (flooding is usually a symptom of this) Rebuilding carbs is easy and fun. (especially if you like fumes-"Oh the colors!")
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Bob 63 Impala 283/PG/3.36 (under restoration) 66 Impala 327/PG/3.36 66 Chevelle SS 409/M22/3.55 69 Chevelle 307/PG/3.08 (future restoration) 69 C10 short stepside 454/TH350/3.73 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!) 71 Cheyenne 20 fleetside 350/4 spd/4.10 71 Chevelle 6/PG/3.08 72 Chevelle 454/M21/4.10 |
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