rickoregon
NAXJA Forum User
- Location
- Burns, Oregon
I'm thinking about using the following hex head bolts and washers available from mcmaster.com:
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Grade 8 Alloy Steel Hex Head Cap Screw Zinc Yellow-Plated, 1/2"-13 Thread, 3-3/4" Length, Packs of 5 ($5.64/pack)
18-8 Stainless Steel AN 960 Flat Washer 1/2" Sz, No. C816, .515" Id, .875" Od, .059"-.067" Thk, Packs of 50 ($8.56/pack)
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Would cost approximately $31 (including shipping) for enough of these bolts and washers to do the 14 locations on the cylinder head. That's about $2.22 each.
I'd also need to cut about an additional 1 to 2 inches of threads on each bolt, but that's pretty easy.
The bolts that came off are grade 8, 1/2"-13, 3 3/4" length and the hex head size and washer size available at mcmaster.com will fit the locations, even though the original hex heads are 5/8" and the replacements would be 3/4". Washer size is the same as the flange size on the original bolts - 7/8".
Has anyone tried using grade 8 bolts like I'm thinking of using? I realize I'd have to find a different place to ground the body to the engine, because the original left rear head bolt has a stud on top for the grounding strap to be attached.. but I should be able to use another bolt or nut on the engine for that purpose.
I know I might be able to find a new original set for about $60 - $80 with shipping, but I'm just wondering why not use regular grade 8 cap screws and good washers? Any thoughts on this? Rick
--------------------------------------
Grade 8 Alloy Steel Hex Head Cap Screw Zinc Yellow-Plated, 1/2"-13 Thread, 3-3/4" Length, Packs of 5 ($5.64/pack)
18-8 Stainless Steel AN 960 Flat Washer 1/2" Sz, No. C816, .515" Id, .875" Od, .059"-.067" Thk, Packs of 50 ($8.56/pack)
--------------------------------------
Would cost approximately $31 (including shipping) for enough of these bolts and washers to do the 14 locations on the cylinder head. That's about $2.22 each.
I'd also need to cut about an additional 1 to 2 inches of threads on each bolt, but that's pretty easy.
The bolts that came off are grade 8, 1/2"-13, 3 3/4" length and the hex head size and washer size available at mcmaster.com will fit the locations, even though the original hex heads are 5/8" and the replacements would be 3/4". Washer size is the same as the flange size on the original bolts - 7/8".
Has anyone tried using grade 8 bolts like I'm thinking of using? I realize I'd have to find a different place to ground the body to the engine, because the original left rear head bolt has a stud on top for the grounding strap to be attached.. but I should be able to use another bolt or nut on the engine for that purpose.
I know I might be able to find a new original set for about $60 - $80 with shipping, but I'm just wondering why not use regular grade 8 cap screws and good washers? Any thoughts on this? Rick