Can anyone tell the correct mounting bolts for a 58 245 HP with pump # 4445?
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Re: C1 Fuel Pump bolts
Gene, I'll jump in with a guess and say they should probably be a 9/16" hex. As far as a logo, if any, no clue. Best, Dennis -
Re: C1 Fuel Pump bolts
My 62, which may have incorrect fasteners had dishhead bolts with a large flange head and split lock washer.
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Markings are -B&H-
Paragons replacements, 56-66, and stated grade 5, are exactly the same bolt as mine except the marking is
R|S
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C
I would think that mine are correct and most likely so is Paragons since the same bolts were used for so many years. What do you have?
ChrisComment
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Re: C1 Fuel Pump bolts
I think the ones I have are incoreect. They are the same as the intake bolts AP in a circle. Thnanks for the info that is helpful.
GeneComment
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Re: C1 Fuel Pump bolts
Gene the markings I tried to put in the previous message got messed up in format.
The slashes are the same on both sources. A vertical one at the top and two horizontals thru the center of the head.Comment
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Re: C1 Fuel Pump bolts
Gene,
I believe that ALL that fuel pump bolts of this era are a flange head bolt with a reduced hex size (1/2" If memory serves me right). The reduced head size was a real advantage when installing the pump, as it gives more wrench room. My recollection is that they are an indented head bolt with a flange head and are cad/zinc plated. I do not recall any head marks, but I will look at some when I go out to the shop today. They are the same as any passenger car, and there are lots of them in the junkyards.
Regards, John McGrawComment
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According the AIMs, this bolt is part #
3751824 in both 1958 and 1965 and the 1970 Standard Parts Book id's this as 3/8" # 16 thread that is 1 1/8" long. When I dig out the 65's plastic bag, this gives up a 3/8" #16 1 1/8" long that uses a 5/16" head and is a grade 5(? - three dashes) with a "U" logo.Comment
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Re: According the AIMs, this bolt is part #
I stand corrected on the use of the use of the reduced size hex. I, for some reason, thought it came into use a little later. However, what's left of my memory wants this to be a 7/16" hex, not 5/16... And the smaller hex DOES make the install easier, along with putting the camshaft on #1 TDC.Comment
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Dennis is correct at 7/16- proofing is such
a pain in the nether regions.Comment
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