The Ford Barn

Henry's Lady's Man · 06-06-2017, 08:39 PM

I know it's come up before. Does anyone have a chart for proper torques on engine bolts? What I really need is the torque for the timing cover bolts. Les Andrews left this one out of his chart on page 1-134. I'm figuring 30 or 40 lbs? these are 9/16 bolts.

lindy williams · 06-06-2017, 08:52 PM

The timing cover bolts are 3/8-16. The maximum torque for this size bolt of grade 5 and thread is 39 lb.ft. So 35-40 would be appropriate.

Henry's Lady's Man · 06-06-2017, 08:57 PM

Thanks

BILL WILLIAMSON · 06-06-2017, 11:35 PM

Some timing cover bolt holes extend into the timing gear areas. Put #2 PERMATEX on those bolt threads, or oil will spiral around those threads & LEAK out from the lockwasher slit!
Bill Drip

H. L. Chauvin · 06-07-2017, 12:30 AM

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Mr. Andrews has a detailed "Bolt-Grade/Torque Comparison Chart" for different SAE grades of bolts, with different threads per inch, at the very end of his Handbook, (in the Appendix, page A-4), with torque reduction percentage amounts for commonly used Model A lubricants.

06-06-2017, 08:39 PM	#1
Henry's Lady's Man Senior Member Join Date: Apr 2015 Location: Albuquerque, NM Posts: 441	Engine bolts torques I know it's come up before. Does anyone have a chart for proper torques on engine bolts? What I really need is the torque for the timing cover bolts. Les Andrews left this one out of his chart on page 1-134. I'm figuring 30 or 40 lbs? these are 9/16 bolts. __________________ ... prosperity is not the product of charity but of industry - HENRY FORD

06-06-2017, 08:57 PM	#3
Henry's Lady's Man Senior Member Join Date: Apr 2015 Location: Albuquerque, NM Posts: 441	Re: Engine bolts torques Thanks __________________ ... prosperity is not the product of charity but of industry - HENRY FORD

06-06-2017, 11:35 PM	#4
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Engine bolts torques Some timing cover bolt holes extend into the timing gear areas. Put #2 PERMATEX on those bolt threads, or oil will spiral around those threads & LEAK out from the lockwasher slit! Bill Drip __________________ "THE ASSISTANT GURU OF STUFF"

06-07-2017, 12:30 AM	#5
H. L. Chauvin Senior Member Join Date: May 2010 Posts: 4,179	Re: Engine bolts torques Sponsored Links (Register now to hide all advertisements) Mr. Andrews has a detailed "Bolt-Grade/Torque Comparison Chart" for different SAE grades of bolts, with different threads per inch, at the very end of his Handbook, (in the Appendix, page A-4), with torque reduction percentage amounts for commonly used Model A lubricants.

06-06-2017, 08:52 PM	#2
lindy williams Senior Member Join Date: May 2010 Posts: 335	Re: Engine bolts torques The timing cover bolts are 3/8-16. The maximum torque for this size bolt of grade 5 and thread is 39 lb.ft. So 35-40 would be appropriate.