Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Flat Spot in Re-Built Marine Q-Jet

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sprink58:

--- Quote from: Cliff Ruggles on June 26, 2011, 05:07:46 AM ---7043208 is not a Marine carburetor, it is an emission calibrated Chevy carburetor for automotive/truck applications.  It would not be set up correctly for a Marine engine, not enough idle fuel, off idle fuel, full throttle fuel, etc.

That's why the float didn't fit.  That particular carb would need significant modifications to work correctly on a Marine application.....Cliff

--- End quote ---

Yeah...you know you think when you buy a boat there might be  marine carburetors on the engines >:(

OK..I'm not going to waste any more time or $$ on that one. I ordered a re-built marine Q-Jet online that is on it's way to me as I write this. I checked the serial numbers of both engines when I bought this boat...and they are 5.7 Mercruiser re-built long blocks...I didn't think to check the carburetors. I will be checking the other carb just to insure that I don't have another "smog motor" Q-Jet.

When I saw that "08" on the last 2 numbers I thought I was ok...bad read on my part.

Live and learn...thank for the heads up.

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