Re: Blow by from oil fill tube
I know nothing about engines or if there is a draft tube or PCV system already in place on your engine. But, some military vehicles vintage I have worked on have a system as simple as a short rubber hose coming from a short connection on the oil fill tube near the cap to a similar connection at the top of the valve cover. Some have a PVC valve connected from this same oil filler neck to an access to the air filter tube to allow the gases to get burned through the carb. And, I thought the very early engines just had a tube that came out of the block and deposited their wares on the road surface. Can't elieve your 53 doesn't have something already in place. JMO
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