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Diagnose oil burning
Compression / leakdown test

Plan
Decisions & Unknowns
What I need to figure out:
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Is oil smoke coming from blowby or leakage past valve stem seals? BLOWBY
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Leakdown audible via crankcase, intake, exhaust? CRANKCASE
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Any influence from crankcase venting arrangement at carb/intake manifold?
Tasks
What I need to do:
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compression test results: 150, 140, 135, 135
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Leakdown test results: all bad, Cyl 3 terrible
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Leakdown audible test
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Check crankcase vent plumbing