The Ford Barn

700rpm · 08-20-2017, 11:05 AM

I have always retightened my head bolts after reassembly in the 35-45-55 sequence, and again to 55 after 100 and 500 miles, without backing off the nuts. I have never had any adverse effects from this procedure, in over 55 years of working on A's.

That is not to say I would never use the backoff method, though. I'm open to trying new or different methods with solid advice from knowledgeable people.

I currently have a rebuilt engine ready to install. So I am going to use the backoff method this time.

PS: As side note, the first time I took my A apart, back in 1961 at the tender age of 16, I put it back together without a torque wrench and without any knowledge of the proper sequence for tightening head bolts. I drove it that way for 19 years with no negative consequences.

08-20-2017, 11:05 AM	#21
700rpm Senior Member Join Date: May 2010 Location: Portland, Oregon Posts: 5,906	Re: Why Do you Back-off to Torque ? I have always retightened my head bolts after reassembly in the 35-45-55 sequence, and again to 55 after 100 and 500 miles, without backing off the nuts. I have never had any adverse effects from this procedure, in over 55 years of working on A's. That is not to say I would never use the backoff method, though. I'm open to trying new or different methods with solid advice from knowledgeable people. I currently have a rebuilt engine ready to install. So I am going to use the backoff method this time. PS: As side note, the first time I took my A apart, back in 1961 at the tender age of 16, I put it back together without a torque wrench and without any knowledge of the proper sequence for tightening head bolts. I drove it that way for 19 years with no negative consequences. __________________ Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole. Last edited by 700rpm; 08-20-2017 at 11:30 AM.