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| | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | As a general rule on newer carburetors, for setting Zenith carburetor floats, Zenith's suggestion was that if a new float and new fuel valve were used, the float would be correctly set. However, in 1957, Zenith did publish a guide for VISUAL CHECK ONLY for floats on older carburetors. Here is that list: https://www.thecarburetorshop.com/Zenith_float_settings.jpgRemember, NEVER bend a Zenith float for adjustment. If the dimension is incorrect, then adjust by changing the thickness of the float valve seat gasket. 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 | | | | | Joined: Sep 2013 Posts: 1,361 'Bolter | | 'Bolter Joined: Sep 2013 Posts: 1,361 | Jon, good and possibly timely info. A couple months ago my Zenith O-10355 (nos carb you provided a couple years ago) on a cold start ran so rich the 216 would barely run. Like the choke was full on. I drove it from the shop to the house which is a 100 yards, shut it off, ate lunch and before cranking it, used a scewdriver handle to sharply tap the carb several times. Cranked it up and it's been fine for the past few hundred miles.
My plan is to open it up and see what's what if the float sticks again. I'll heed your advise above for sure.
RonR
Last edited by moparguy; 10/13/2021 2:16 AM.
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
| | | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | Ron - if you drive it daily for a week or so, might clear the problem.
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 | | | | | Joined: Sep 2013 Posts: 1,361 'Bolter | | 'Bolter Joined: Sep 2013 Posts: 1,361 | Ron - if you drive it daily for a week or so, might clear the problem.
Jon. That does indeed appear to be the case.
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
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