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Old 06-13-2021, 03:20 PM   #1
hotrodcbx
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Join Date: Jul 2010
Posts: 136
Default JAX vintage valve components

About 4 years ago I bought a set of adj. lifters made by JAX Vintage Valve Components. My flathead (built by Mark Kirby RIP) has been reliable for 25 years but me being me decided to upgrade the cam and lifters this year. I also purchased a Sneider Cam with these JAX lifters. They were beautifully built and finished.
I installed them paying particular attention to using quality cam breaking lube on the new cam and lifters. I broke in everything over a period of 30 minutes holding 2000 RPM, varying the RPM occasionally. Checked the valve clearances and all was good, After about 1000 miles my engine started making nasty valve noises. I checked the clearance and they were extremely loose. I checked the valve lift and all was in spec. so all I can conclude from this is the adjusters were not working as intended.
Has anyone had similar experience with this make of lifter??
Is there anyway I can tighten up the adj. screws without removing them??
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