The Ford Barn - View Single Post - Cam/Lifter uh-oh Part II

Ol' Ron · 02-11-2017, 10:24 PM

Reading all these post makes me wonder. Back when I was building engines I always turned them over with a torque wrench looking for some max number, which I have forgotten. However. I always broke the engines in on my Dyno. I would load the engine up at 2000 RPM with about 50 lbs of torque for about 1/2 hr untill I got allot of temp in the engine. Next day I'd re-torque the engine and noticed there was very Little friction on the rings any more. Guess they ware in some. Noe about the 20 hP, this might be true in a 350 SBC turning 6500 but I doubt very much in a flathead turning 2k in cruise. With this said, I do believe the Metric rings are a vast improvement in ring design and a benefit to our Hobby.

02-11-2017, 10:24 PM	#65
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,861	Re: Cam/Lifter uh-oh Part II Reading all these post makes me wonder. Back when I was building engines I always turned them over with a torque wrench looking for some max number, which I have forgotten. However. I always broke the engines in on my Dyno. I would load the engine up at 2000 RPM with about 50 lbs of torque for about 1/2 hr untill I got allot of temp in the engine. Next day I'd re-torque the engine and noticed there was very Little friction on the rings any more. Guess they ware in some. Noe about the 20 hP, this might be true in a 350 SBC turning 6500 but I doubt very much in a flathead turning 2k in cruise. With this said, I do believe the Metric rings are a vast improvement in ring design and a benefit to our Hobby.