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| | | | Joined: May 2011 Posts: 266 Shop Shark | | Shop Shark Joined: May 2011 Posts: 266 | Anyone know the thread and pitch of the bolts that holds the hood to the brackets?? I know they are a special bolt, I removed mine, put them in a labeled plastic bag. Only problem is the bag has run off. I have some used ones that came in the hood, but I want to run a tap in the holes and clean up the bolts until I can find my new ones. Trying to get my hood back on ?? | | | | | Joined: Feb 2004 Posts: 29,749 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,749 | Are these the bolts with a short shoulder the hood linkage pivots on? I seem to remember the diameter of the thread being 5/16", don't remember if the thread is coarse (18) or fine (24) threads per inch. Try one of those two taps, and if it gets tight after a turn or two, try the other one. Chasing the thread shouldn't require much more effort than a firm twist with your fingers unless they're badly rusted.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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| | | | | Joined: Mar 2010 Posts: 10,271 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,271 | If you are talking about the shouldered pivot bolts, they are fine thread.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: May 2011 Posts: 266 Shop Shark | | Shop Shark Joined: May 2011 Posts: 266 | | | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | project51, at most hardware or Harbor Freight, or Northern Tool, you can pick up one of those little plastic gizmo's that you can measure the size and pitch of a bolt.... and even screws. They are only a couple dollars and well worth the investment. I've worn out one and had to get another! | | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Most tap and die sets come with a thread gauge and you use a caliper for Diameter. Works with "A" or "B" threads. I use HotRod's method also when I'm pretty sure of the size. Many holes on a Chevy motor and chassis are 5/16-18.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: May 2011 Posts: 266 Shop Shark | | Shop Shark Joined: May 2011 Posts: 266 | project51, at most hardware or Harbor Freight, or Northern Tool, you can pick up one of those little plastic gizmo's that you can measure the size and pitch of a bolt.... and even screws. They are only a couple dollars and well worth the investment. I've worn out one and had to get another! wow that will keep me from running to Lowes with nuts and bolts to get the thread and pitch !! | | | | | Joined: May 2011 Posts: 266 Shop Shark | | Shop Shark Joined: May 2011 Posts: 266 | Most tap and die sets come with a thread gauge and you use a caliper for Diameter. Works with "A" or "B" threads. I use HotRod's method also when I'm pretty sure of the size. Many holes on a Chevy motor and chassis are 5/16-18. HHmmm neither of mine came with that ? Sears and harbor freight ????? | | |
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