Thread: Torque Specs
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Old 06-23-2015, 02:14 PM
Don1450 Don1450 is offline
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Join Date: Jul 2014
Location: Connecticut
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Anybody care to throw out a number? I looked in the service manual that I have, but it just gives general torque specs based on bolt size and material. According to it bolts of this size going into cast iron ought to be between 33-37 foot-pounds for Grade 5 and 43-47 foot-pounds for grade 8. Do these numbers qualify as "tight"? I understand that I want them as tight as possible and I'm using Locktight on the threads because they tend to vibrate loose. I'm also using washers and lock washers on the rail bolts, but I don't want to crack the castings.

The service manual I have says to refer to the "Blue Ribbon Service Manual #GSS-1465." I assume this is a manual devoted to engine overhauling. Does anyone have a copy?
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