Carburetor Repair
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the Marvel carburetor issues with great interest .I have rebuilt a few in the past with acceptable success .I own both a 1929 54CC and a 1930 64C. I was having problems with my 29 Buick carb and happened on to an updraft carb expert. I took it to him and it is literally MUCH better than new. I have not seen his name mentioned on the site. His secret is the ability to mate newer Rochester quadrajet needles to the specific carb specs and really knows the updraft carburetor. He also knows the nuances of the air springs and particular requirements of the different engines. This has not only allowed perfect function but the needle and seat are now replaceable at the local auto parts store! The only prerequisite is an intact usable bowl and carb body. As you know, the 29 and 30 carb bowls are a diecast unit. A list of things done to the heat riser and carb are as follows: meticulous cleaning and prep after complete dismantling and inspection, resurfaced gasket mating surfaces, rebushed throttle and choke shafts, replaced float with a balanced and appropriate weight unit then coated with moisture-cured urethane as well as coating inside of bowl. Install new gaskets, inlet valve, packing and reconditioned metering piston, rod and metering spring. Installed viton-tip needle and updated accelerator pump bushing. Replaced diecast air valve baffle with an aluminum baffle and fitted to throttle valve. Screws replaced and sealed with appropriate sealer for application. All threads were cleaned and chased. A broken screw was extracted in the heat riser. An anti rattle spring was replaced . The choke plate had actually been previosly pressed on in reverse!! The metering adjustment base required straightening and resolder.Cosmetically all the hardware was deburred and tumble polished .The external surfaces were all refinished as original. I had already swedged a new heat riser sleeve into the heat riser and purchased a repro bowl cover. The unit does not leak through any fitting. The gas does not disappear from the bowl now and there is no over filling through the top of the bowl cover from a slow-to-close valve. If anyone is interested his name is Jeff Dreibus. His business is "The Old Carb Doctor" He is in Nebo, North Carolina and his phone # is 1-800-945-2272. His price was reasonable and the updrafts are the most expensive to do! A start-up price for the Marvel would be $400-450 assuming you start with good components. He does not carry kits or prebuilt units. He does everything on site. I have put a few pics in the photo file of the unit before it was placed back on the auto. The unit essentially did not require further adjustment when fitted on the car! The short answer- a Marvel carburetor CAN be used in your Buick. Ken |