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40 Deluxe · 10-03-2019, 12:17 PM

Get some "fogging oil" to spray into the spark plug holes and down the intake. You can prime the oil system through the oil pressure sending unit port. Rig up a line from a small pump or pressure vessel (like a garden sprayer) to push some fresh oil in to the bearings.
It does make a difference how the engine has been stored for the last 30 years: Were the intake and exhaust ports taped over or left open? Was this a fresh/never run rebuild? Was oil put in through the spark plug holes back then?
Don't forget about the cam! After 30 years (plus an unknown number more years) it will be dry and won't get any lube until the engine runs long enough for oil to thrown up from the rod bearings. You might want to fill the crankcase completely full so oil coats the cam and lifters just before you start it. If you leave it full of oil, it will slowly leak all over the place!

10-03-2019, 12:17 PM	#4
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,779	Re: Flathead Storage? Get some "fogging oil" to spray into the spark plug holes and down the intake. You can prime the oil system through the oil pressure sending unit port. Rig up a line from a small pump or pressure vessel (like a garden sprayer) to push some fresh oil in to the bearings. It does make a difference how the engine has been stored for the last 30 years: Were the intake and exhaust ports taped over or left open? Was this a fresh/never run rebuild? Was oil put in through the spark plug holes back then? Don't forget about the cam! After 30 years (plus an unknown number more years) it will be dry and won't get any lube until the engine runs long enough for oil to thrown up from the rod bearings. You might want to fill the crankcase completely full so oil coats the cam and lifters just before you start it. If you leave it full of oil, it will slowly leak all over the place!