Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: Mike29 on February 06, 2014, 11:59:12 PM

Title: Rochester q-jet marine carb.
Post by: Mike29 on February 06, 2014, 11:59:12 PM
Cliff if you read this I bought 2 kits from you to overhaul my marine Q-jets a few months back. They are the 17082403's and just wanted to say engines started right up after a small prime and actually idled nice. A friend who supposedly "knows" these marine carbs helped and he recommended I set floats at 1/8". Boat runs smooth but seems to be running a little rich to me ....could this be due to float setting? What would you recommend I set them at? Those kits are great by the way...
Title: Re: Rochester q-jet marine carb.
Post by: Cliff Ruggles on February 12, 2014, 04:44:56 AM
Marine carburetors will have very specific float settings per application.  Some will be listed quite low due to the mounting angle, etc.

Most carb numbers show up in the instructions, I would set the floats at the factory recommended setting.  If no listing is found, I most often set them at 1/4".  Marine applications are sensitive to high fuel levels, and fuel slosh, etc, and running a 1/8" setting may produce running rich and even stalling issues in actual use......Cliff
Title: Re: Rochester q-jet marine carb.
Post by: Mike29 on February 19, 2014, 07:53:27 PM
Thanks Cliff.