put some thread locker (locktite) on it and let it sit overnight.

Note: Not sure on your model but most of these collars have a steel washer that goes in the screw cap, then the felt/cork gasket and then another steel washer. The felt/cork gasket gets squashed between the two steel washers as you tighten up the collar which helps it stay in place and keeps it from leaking.

Hope this helps...if all is good then you may want to "stake" the collar a little with a punch???


1937 Chevy Pickup
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1950 Chevy Coupe
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