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Tighten 115-C connecting rod bolts dry or oiled?
#1
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pack36997
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I have gleaned from this site that the proper torque on the connecting rods of a Packard 115-C should be 45 to 46 LB/FT, but should they be dry or oiled? Also, should the nuts on the head studs be dry torqued? Thank you.

Posted on: 2020/10/10 11:36
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#2
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Owen_Dyneto
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Dry, both.

My Motor's Manual indicates 55-60 lb-ft for the 6-cylinder connecting rods, 45-50 for the Super Eight.

Posted on: 2020/10/10 13:13
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#3
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Packard Don
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Double check the rod bolt torque to the Packard specifications! I once torqued mine to a 1956 Motor's Manual but the postwar sixes used larger bolts than prewar so using the specified torque on my smaller bolts, they stretched and had to be replaced.

Posted on: 2020/10/10 18:48
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#4
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Owen_Dyneto
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I didn't check the 1937/1938 Shop Manual but for the 6-cylinder in 1939 Packard gives 715-725 inch-pounds,or about 60 ft-lbs. That's good agreement with Motors for prewar Sixes.

Posted on: 2020/10/10 20:46
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#5
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blue40devil
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Posted on: 2020/10/11 9:54
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#6
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John
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My MoToRs manual shows 55-60 ft/lbs for 1937-39 and 45-46 ft/lbs for 1940 thru 1947 for the 6 cylinder.

Posted on: 2020/10/11 10:16
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#7
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Wesley Boyer
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Normally clean and oiled will give you the best results for any bolt.
Wes

Posted on: 2020/10/11 10:23
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Re: Tighten 115-C connecting rod bolts dry or oiled?
#8
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Owen_Dyneto
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Clean and dry.

Posted on: 2020/10/11 11:37
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