Some info on this forum points to a possible new cap that will not vent pressure but will vent vacuum, loosen the cap and feel or listen for pressure escaping vs. vacuum.
Last edited by 78buckshot; 09/28/2024 8:42 PM.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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