Quote:
Originally Posted by Corts60
Valve seals. If it only does it for a few seconds at start up and you are 100% sure it is blue and not white, it is valve stem seals. There is a way to change them with the heads installed. It requires putting air pressure in each cylinder while you pull the valve keepers out, but it can be done.
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Take a whiff. Burning oil smells closer to a smoky burnout than excess fuel.
https://learndiesels.com/diesel-smoke-guide/
Slightly low compression can cause a partial fuel burn that gets better after a few minutes of runtime as the pistons and rings warm up.
Leaking valve stem seals usually only lasts for 30-45 seconds or less or so.
Valve stem seals will take care of the intake side.
Exhaust valves don't have seals. If the exhaust guides are loose enough that they are leaking significant amounts of oil they'll need work.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
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