The Ford Barn

Magoo2 · 07-04-2021, 03:37 PM

I’ve been advised to retorqing the head bolts on my 31 CCPU. What is the recommended torque and procedure?

chrs1961815 · 07-04-2021, 03:46 PM

I use this even though I do not have a Brumfield head but a different high compression head.

http://www.fordgarage.com/pages/brum...structions.htm

What kind of head do you have and what is thr condition of your engine?

alexiskai · 07-04-2021, 03:47 PM

https://www.mafca.com/images/Cylinde...Tightening.pdf

This one says 50, but most folks do 55. But this will show you the sequence.

nkaminar · 07-04-2021, 08:33 PM

I did the following and it seems to have worked: Initial torque to 55 ft-lbs on installation of head (in 10 ft-lb increments). Warm up engine then cool overnight. Re torque to 55 ft-lbs. Drive for a week or 100 miles. Cool overnight then re torque to 55 ft-lbs. Drive for another 500 miles or a month, cool and re torque. Re toque cold engine every 6 months. Loosening before re torquing makes sense but do one nut at a time. I used the copper anti seize on the nuts. Lubrication like the anti seize will mean that the tension on the studs will be greater than if assembled dry.

pbishop · 07-05-2021, 12:23 AM

Sponsored Links (Register now to hide all advertisements)

MIKE"S and MAC"S catalogs have the information located in the catalogs. There are diagrams of the torque patterns and repeating torque sequences and time between doing so. Each step is 'always' with a cold block.

Just take your time and do it right.

07-04-2021, 03:37 PM	#1
Magoo2 Member Join Date: Nov 2017 Location: NJ Posts: 61	Retorqing head I’ve been advised to retorqing the head bolts on my 31 CCPU. What is the recommended torque and procedure?

07-04-2021, 03:46 PM	#2
chrs1961815 Senior Member Join Date: Jul 2018 Location: Spring Grove, Illinois Posts: 1,371	Re: Retorqing head I use this even though I do not have a Brumfield head but a different high compression head. http://www.fordgarage.com/pages/brum...structions.htm What kind of head do you have and what is thr condition of your engine? __________________ "The more things change, the more they stay the same."

07-04-2021, 03:47 PM	#3
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 2,354	Re: Retorqing head https://www.mafca.com/images/Cylinde...Tightening.pdf This one says 50, but most folks do 55. But this will show you the sequence.

07-04-2021, 08:33 PM	#4
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,897	Re: Retorqing head I did the following and it seems to have worked: Initial torque to 55 ft-lbs on installation of head (in 10 ft-lb increments). Warm up engine then cool overnight. Re torque to 55 ft-lbs. Drive for a week or 100 miles. Cool overnight then re torque to 55 ft-lbs. Drive for another 500 miles or a month, cool and re torque. Re toque cold engine every 6 months. Loosening before re torquing makes sense but do one nut at a time. I used the copper anti seize on the nuts. Lubrication like the anti seize will mean that the tension on the studs will be greater than if assembled dry. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.

07-05-2021, 12:23 AM	#5
pbishop Senior Member Join Date: Apr 2011 Location: Wimauma, Florida Posts: 121	Re: Retorqing head Sponsored Links (Register now to hide all advertisements) MIKE"S and MAC"S catalogs have the information located in the catalogs. There are diagrams of the torque patterns and repeating torque sequences and time between doing so. Each step is 'always' with a cold block. Just take your time and do it right.