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#1 |
Senior Member
Join Date: Jul 2017
Location: Cave Junction, Oregon
Posts: 432
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I finally found the torque value or tightness for the head bolts on my ’29. 50 foot pounds on page 42 of “How to restore your model A”. Is there a chart for the torque that is required on a model A overall? I really need a reference because everything seems loose on this car I bought. I searched the forum for previous information, but got varied results for the intake/exhaust manifold. 20 ft. lbs.? 25 foot lbs.? I have a tendency to over-tighten crap, that’s why I use a torque wrench. Help, I need info before I break something else. Thanks, Mike.
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#2 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,963
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Just use a shorter wrench and you won't over tighten. Locktite will keep nuts in place.
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#3 |
Senior Member
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 1,045
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Hmmm I just used 55# from the Les Andrews book that has the specs section in the back. But, 5# probably isn't going to make that much difference either way.
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#4 |
Senior Member
Join Date: Jul 2017
Location: Cave Junction, Oregon
Posts: 432
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A shorter wrench, huh! I went online and found a torque chart from Bratton’s Antique Auto Parts since nobody at the Ford Barn was able to help. I just finished torquing down the head, and I doubt if a single nut was tighter than 40 foot lbs. at the most. There was a little liquid by the number 8 nut, and I hope that I’m not going to have to pull that head and put a new head gasket in. If I do, I will use Apache sealer on both sides and put it back together. I hope they still make Apache sealer.
I was leery of putting 20 lbs. of torque on the exhaust clamp and probably only used about 15. Everything was lined up and I had put an insert in so it shouldn’t leak. The thing that has me freaked out since nothing I’ve found was torqued correctly is: What the heck is the inside of the motor like? |
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#5 |
Senior Member
Join Date: Jun 2011
Location: Upstate South Carolina
Posts: 794
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Its normal for thing to need retorqueing, especially after a fresh rebuild. The head especially may need it again, before it ever takes a permanent set. Good Luck
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#6 |
Senior Member
Join Date: May 2010
Location: Santa Rosa, CA
Posts: 1,279
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One mistake sometimes made is to look up a torque value for a certain size and grade of bolt on one of the many charts on the internet and then tighten to that limit. That is a mistake. A certain bolt application may list a certain torque setting for a specified clamp load, but that setting may be all wrong for the application and may result in warping or breaking the part. For myself, I just consult the Schild and Andrews books as guides and tighten to what has worked for me over the years. |
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#7 | |
Senior Member
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What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II |
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#8 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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I haven't heard of Apache, but I have a can of Indian Head sealer.
I always spray both side of head gaskets with Copper Coat. |
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#9 |
Senior Member
Join Date: May 2010
Location: Cape Cod
Posts: 1,128
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wingski,
With regard to your comment (post 4) that "nobody was able to help", I have to disagree as there were many good replies ! Marc |
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#10 |
Senior Member
Join Date: Jul 2017
Location: Cave Junction, Oregon
Posts: 432
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