this post was submitted on 27 Feb 2024
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Cars - For Car Enthusiasts
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And you had to do more service more often such as tune ups for adjusting points ignition. And I think in some engines, adjusting valve lash since hydraulic lifters didn't become ubiquitous until later?
Yup, and king pins, suspension joints and pretty much every other moving part needed greasing constantly since sealed rubber boots, and tough plastics hadn’t been invented yet (let alone ball/spherical joints).
On the plus side, if you or kept up maintenance the joints would last a longer time, but back then the engines weren’t usually as reliable, and relied on leased gas to prevent detonation and valve wear. Now if a ball joint or wheel bearings fail, you just realize the whole assembly. So more waste, but less maintenance.
Many engines even up to the mid 2000's also needed valve adjustments. Honda F-series engines are notorious for it. The only difference is improvements in metallurgy mean the valve seats no longer recess nearly as much, and thing like the Honda F22's only need the adjustment every 60k or so rather than every 10.
Interesting. I thought I vaguely recalled some modern vehicle needing it. Every 60k isn't too bad though. I think my 60s Datsun needed it more often.