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#56756 02/20/2006 4:26 AM | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Ive got a 53 and shes running a little rich. Its an old carter 1 barrel on a 216. The carb was rebuilt be someone 2-4 years ago b4 I bought her.
I was told to turn the mixture screw in all the way, then back it out 1 and a 1/2 turns. After doing this I was told to turn it a small amount either way until running where I want her.
I still smell gas. No black smoke just running rich. Any ideas?
Thanks, Jeff | | |
#56757 02/20/2006 4:45 AM | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Assuming the carb is correct for the engine, initial idle mixture screw adjustment would be from 3/4 turn to 1 1/2 turns from lightly seated.
We also set them at an initial of 1 turn.
Would suggest also taking a good look at the ignition setup (points, plugs, condenser, cap, rotor, WIRES, coil).
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
#56758 02/20/2006 6:21 AM | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Thanks. I believe its the original carb.
Points, plugs, etc, all new. The only thing would be the gap in the points, Its at .016, Would this effect this? Is .016-.018 correct for these?
Thanks again -Jeff | | |
#56759 02/20/2006 6:44 AM | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | Jeff;
If you're still smelling gas,be sure to check all your fuel lines,the fuel pump,and any filters you might have on your truck. If it's rich enought to smell that strongly,you'd likely see smoke from the exhaust.I'm guessing you may have a fuel leak somewhere.Also pull your oil dipstick out and sniff the oil-if you smell gas there you might have a leaking diaphragm on your fuel pump filling your crankcase with gas. I hope it's something easy to cure.
Speed | | |
#56760 02/20/2006 8:38 PM | Joined: Jun 2005 Posts: 153 Member | | Member Joined: Jun 2005 Posts: 153 | float level too high in the carb
carb leak around the butterfly pivot point
leaky seal on the gas tank fuel float sensor, assuming the tank is inside the cab
exhaust manifold leak
other exhaust system leak
that's all i can think of right now.
tony
Overland Blue, 1953 GMC 1/2T, 100-22, 228/1bbl, 4sp/4.10 6v, shortbed/fender side/5-window.
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#56761 02/21/2006 2:47 AM | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | No leaks, Ive been through all 5 or 6 parts now (i love how simple these ol trucks are!). The fuel pump was leaking b4 but has since been fixed.
No gas in oil -one of the first places I checked cause its a 216 and if the oil got thinned-kaboom!
Im pretty sure its in the carb. I hate working on carbs-with all their small parts but one this old oughta be a cinch!
I got to work on a mid 40's willys jeep carb once and it still had all the leather gaskets and seals cause all the rubber was being used for the war effort. How cool to see though!
Thanks -Jeff
Oh yeah, there aint to much of the muffler left so that might be why Im smelling it so easy without smoke! | | |
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