oil fill tube
02-13-2009, 08:29 PM
#1
Melting Slicks
Thread Starter
oil fill tube
I was wondering where the oil fill tube gets vented on a 64-365hp, there is a plug at the rear of the manifold, does it vent in the manifold or in the air cleaner, any info would be great,thanks,greg
02-13-2009, 09:18 PM
#2
Pro
The fitting on the tube is for the pcv system. a hose goes from there to the drivers side of the carb, where it goes into a 90 degree brass fitting with a metered orifice. The block is vented from the port by the rear of the intake. A tube goes from there to the air filter.
02-13-2009, 09:23 PM
#3
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C2 of the Year Finalist - Modified 2020
Two of my books show it connects to a brass fitting on the driver side of the Holley carb. I would suspect the plug you refer to is intended for vacuum source for PB is so equipped. 
Dennis
Dennis
02-13-2009, 10:09 PM
#4
Melting Slicks
Thread Starter
thanks for the info, could i just hook the hose from the fill tube to the port on the manfold,i dont think my carb has a fitting on the side.greg
02-14-2009, 09:07 PM
#5
Team Owner
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Another option is to use a '66-'67 oil fill tube - it has a threaded bung for a PCV valve, and a hose goes from the valve to the 3/8" PCV port that most carbs have on the baseplate. What kind of carb do you have? Got a photo?
