The Ford Barn

alexiskai · 02-12-2021, 12:07 PM

About a month ago I made a short video showing my take on Larry Brumfield's procedure for testing the strength of engine block stud threads. This procedure is posted on fordgarage.com, but it's pretty high-level and leaves room for interpretation. So I took some liberties with the protocol for convenience.

I subsequently heard from Larry, who is alive and well, though no longer participating on FordBarn. He was, I should mention, very nice. Over a couple dozen emails, he explained the entire procedure and his reasons for doing it that way.

So I have now re-shot the entire video to faithfully (I hope) reproduce the Brumfield block thread test. I've also included some of the research I did on my own to figure out the science behind the choices, in case anyone is interested.

Link: https://youtu.be/ibaPf0FQnZM

In the end, I probably agree about 95% with the test protocol. I still think it would be better to torque the nut up in steps as would be done in the real cylinder head install. But I promised Larry that in this video I would stick to his version of the test.

I will say, in the process of researching and shooting this video I sure learned a lot about fasteners.

02-12-2021, 12:07 PM	#1
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 2,356	New video: Larry Brumfield's block thread test About a month ago I made a short video showing my take on Larry Brumfield's procedure for testing the strength of engine block stud threads. This procedure is posted on fordgarage.com, but it's pretty high-level and leaves room for interpretation. So I took some liberties with the protocol for convenience. I subsequently heard from Larry, who is alive and well, though no longer participating on FordBarn. He was, I should mention, very nice. Over a couple dozen emails, he explained the entire procedure and his reasons for doing it that way. So I have now re-shot the entire video to faithfully (I hope) reproduce the Brumfield block thread test. I've also included some of the research I did on my own to figure out the science behind the choices, in case anyone is interested. Link: https://youtu.be/ibaPf0FQnZM In the end, I probably agree about 95% with the test protocol. I still think it would be better to torque the nut up in steps as would be done in the real cylinder head install. But I promised Larry that in this video I would stick to his version of the test. I will say, in the process of researching and shooting this video I sure learned a lot about fasteners.