T
test303
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My 91 NA with 97k miles was smoking blue at start-up and acceleration. I figured bad valve stem seals. Then a coolant exhaust gas test came up positive and I figured BHG. At tear down, my mechanic said there was no warp in the head or block, I saw a few small breaks in the head gasket. Had the following work done: New Toyota gasket/seal set, including factory head gasket and valve stem seals. Cylinder head slightly machined to remove gasket impressions. New head bolts, torqued to 70 ft/lbs. Valves and seats lapped, intake cleaned, new NGK copper plugs cuz I wanted to check for rich/lean A/F mixture. Gas cap, fuel filter, thermostat, radiator cap and coolant flush and fill. The smoke at startup is gone, but it still smokes (blue) like a chimney under medium to hard acceleration. Smoke calms down when I level off at cruisin speed. SO... what could it be and can it be tested without a tear down ? If it's piston rings (the only thing my limited knowledge brings to mind), do you know if it's cheaper or better or advisable to repair mine or maybe buy a new or remanufactured short block. I've got this bad feeling that my paint job money is about to be re-allocated 
Thanks for your time, michael ... [email protected]
Thanks for your time, michael ... [email protected]