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40 Deluxe · 02-21-2018, 03:26 PM

A question(s) for Mr. Kohnke: Assuming a stock 'A' engine with Babbitt bearings, how long after a cold start can it safely run without oil reaching the mains (or refilling the dipper tray)?
Now, say your A has sat in an unheated garage for a month. You go to start it tomorrow morning when it's 14 above. How long before oil reaches the mains and dipper tray?

I'm going to say a cold engine will run a lot longer (without any damage) before oil gets to the bearings than the average person would think. Or else no Model A would have made it past it's first winter!

02-21-2018, 03:26 PM	#16
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,778	Re: Oil viscosity (weight) for model A A question(s) for Mr. Kohnke: Assuming a stock 'A' engine with Babbitt bearings, how long after a cold start can it safely run without oil reaching the mains (or refilling the dipper tray)? Now, say your A has sat in an unheated garage for a month. You go to start it tomorrow morning when it's 14 above. How long before oil reaches the mains and dipper tray? I'm going to say a cold engine will run a lot longer (without any damage) before oil gets to the bearings than the average person would think. Or else no Model A would have made it past it's first winter!