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hex wrench size for Big Mouth Air Vent BJ-3BM?
rhodebump
Member Posts: 152
I feel exasperated. I have a set of large hex wrenches (3/8 through 3/4 inch) but nothing fits
1/2 too small
5/8 too big
9/16 too small
I am about to grind a chisel to install, but I wish I could just have the order the proper tool. Is it metric? Is my hex set defective?
I appreciate pointing out my mistake.
-Phillip
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15 mm is right in between 5/8" and 9/16", but I can't see Barnes and Jones using metric sizes.Just another DIYer | King of Prussia, PA
1983(?) Peerless G-561-W-S | 3" drop header, CG400-1090, VXT-240 -
You can just asemble it and crank it in to bury the threads. Loosen the union nut and readjustPeter Owens
SteamIQ0 -
> @JUGHNE said:
> A little grinding or filing on the 5/8" hex or chisel.
> Or a bolt with 5/8" head with 2 nuts jam locked to wrench on.
This is the method I used, but a little more “Ohio Hillbilly”. I used a junk spark plug with the insulator removed inserted “engine side up”—the large diameter and long threads afforded a nice place to get a good bite with a small pipe wrench. It worked! Said spark plug is now welded to a cracked chinesium 15mm socket I had laying around, creating a dedicated 1/2” drive “Big Mouth socket”
5/8”/16mm is an oddball Allen wrench size, but certainly is not an oddball hex bolt size!0 -
All, I found out that the hex set that I bought on amazon was junk. People verified with digital calipers that the 5/8 hex was off. I bought a 5/8 hex from a different vendor and it fit perfect. I think there are some tools that are even worse...than harbor freight (audible gasp from the crowd here)
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