Holley float bowl part-function question
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From: NorCal
Holley float bowl part-function question
What is the function of the slide-in plastic shield that surrounds the needle/seat assembly in a 4150/4160 Holley? I inadvertently left it out of my 3367 rebuild and put the carb back on the car 
, and I'd rather not take the carb off & apart again. I'd rather bag the part and put it back during the next rebuild a few years down the line.
, and I'd rather not take the carb off & apart again. I'd rather bag the part and put it back during the next rebuild a few years down the line.
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From: Greenville, Indiana
Originally Posted by LouieM
What is the function of the slide-in plastic shield that surrounds the needle/seat assembly in a 4150/4160 Holley? I inadvertently left it out of my 3367 rebuild and put the carb back on the car , and I'd rather not take the carb off & apart again. I'd rather bag the part and put it back during the next rebuild a few years down the line.
, and I'd rather not take the carb off & apart again. I'd rather bag the part and put it back during the next rebuild a few years down the line. Somebody else may have a better memory but I think it was an anti-slosh shield. Eliminates flooding.
If it's out of your carb and everything is okay for the way you drive it, I wouldn't worry too much. Put it back in next time. But then, it's only a few screws. The choice is yours.
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It's called a "vent whistle". It was designed to reduce slosh into vents which could come out into venturis and also to reduce siphoning out of vents.
JIM
JIM
Hmmmmmmm.....Vent Whistle, huh? Ya learns somethin' everyday!!!
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From: NorCal
Originally Posted by 427Hotrod
It's called a "vent whistle". It was designed to reduce slosh into vents which could come out into venturis and also to reduce siphoning out of vents.
JIM
JIM
"Vent whistle" is a new term to me too, but vent whistle it is. I'll leave it out for now, since I'd rather get the car started and running ASAP.
Thanks
Lou
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From: Washington Michigan
Originally Posted by MikeM
Somebody else may have a better memory but I think it was an anti-slosh shield. Eliminates flooding.
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From: NorCal
Originally Posted by JohnZ
Correct - it's also a splash baffle that keeps bowl "slosh" from interfering with incoming fuel flow. The "vent whistle" is a completely different part (white plastic) that keeps raw fuel from leaving the bowl through the bowl vent.
