New carburetor caution - 03/17/18 03:20 PM
Just passing on a suggestion for anyone buying a new carburetor. Before installing it make sure it's clean, inside and out.
I recently bought a Holley 4150 style clone, from what used to be a manufacturer with a rather good reputation. The owner retired a few years ago and the company was bought by Holley.
It's an 850 CFM mechanical secondary Hp style. Since these carburetors have adjustable idle feed, emulsion and power valve restrictors, I thought I had better take it apart and document the restrictor jet sizes. I was shocked and disappointed to find metal shavings in the fuel bowls, and between the metering blocks and the main body. As well, a few of the removable restrictors had the heads stripped off during installation, the chunks of brass were caught in the restrictor orifices.
Upon inspecting the throttle body I found two dents in the bottom along the edge of the two primary barrels, and a crack in the body where a spring retention pin was driven in. They replaced the throttle body under warranty, but it still cost me for shipping and duty.
If I had installed the carburetor without dismantling it It surely wouldn't have operated correctly.
You never know what you're getting these days and quality control is a thing of the past.
Just a suggestion, but these things should be disassembled and blasted out with solvent, carb clean and compressed air.
FWIW
I recently bought a Holley 4150 style clone, from what used to be a manufacturer with a rather good reputation. The owner retired a few years ago and the company was bought by Holley.
It's an 850 CFM mechanical secondary Hp style. Since these carburetors have adjustable idle feed, emulsion and power valve restrictors, I thought I had better take it apart and document the restrictor jet sizes. I was shocked and disappointed to find metal shavings in the fuel bowls, and between the metering blocks and the main body. As well, a few of the removable restrictors had the heads stripped off during installation, the chunks of brass were caught in the restrictor orifices.
Upon inspecting the throttle body I found two dents in the bottom along the edge of the two primary barrels, and a crack in the body where a spring retention pin was driven in. They replaced the throttle body under warranty, but it still cost me for shipping and duty.
If I had installed the carburetor without dismantling it It surely wouldn't have operated correctly.
You never know what you're getting these days and quality control is a thing of the past.
Just a suggestion, but these things should be disassembled and blasted out with solvent, carb clean and compressed air.
FWIW