Cliff's Quadrajet Parts and Rebuild Kits

Quadrajet Problem Solving => Diagnose a Quadrajet carburetor problem => Topic started by: bober on July 24, 2018, 06:42:06 PM

Title: 17057256 on my 462 w/6x4's and performer intake slight whistle noise
Post by: bober on July 24, 2018, 06:42:06 PM

I have this carb that has been rebuilt and is modified to my 455 and as far as running I can't complain but there's a slight whistle that I haven't been able to pin point with car cleaner . It seems the same with/without a/filter in place and the base throttle bushings were replaced during rebuild . Any other things to check ? Thanks .

Title: Re: 17057256 on my 462 w/6x4's and performer intake slight whistle noise
Post by: Cliff Ruggles on July 25, 2018, 03:59:51 AM

It may be from the idle bypass slots in the airhorn.  Some set-ups will be pulling enough bypass air across the slots that they act like whistles.  This can be reduced or eliminated by opening up the slots to make the openings larger......Cliff

Title: Re: 17057256 on my 462 w/6x4's and performer intake slight whistle noise
Post by: 77cruiser on July 25, 2018, 04:24:26 AM

Mine whistles, it didn't until I opened the bypass air to about .125.

Title: Re: 17057256 on my 462 w/6x4's and performer intake slight whistle noise
Post by: bober on July 26, 2018, 07:07:31 PM

Thanks for the info ! It hasn't seemed to hurt the performance and running or idle so I can put up w/it ! I thought there might be a leak some place I haven't found .