Hugh Jarce
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| posted on 9/9/04 at 05:56 AM |
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Ned, you don't really want to be making too many holes in your chassis unless you're goin to weld them up again.
A captive nut is nearly always better than a captive bolt (less susceptible to getting yourself caught on it for a start).
I have earth straps with 8mm, 10mm and 12mm holes in them.
If you must have a captive bolt with clear threads right up to the chassis, why not drill a hole right through, tap it, screw the bolt in from the
rear and braze/silver solder it in place on both sides of the tube. The bronze/solder won't impede the threads if done neatly and you can then
cut the head off the bolt too.
Or as someone mentioned somewhere above, weld a crush tube in. The wall of the crush tube should be at least as thick as the tube it's inserted
through.
The pay isn't very good , but the work's hard.
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Hugh Jarce
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| posted on 10/9/04 at 01:47 AM |
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These blind fasteners may be of some use.
The pay isn't very good , but the work's hard.
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JoelP
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| posted on 10/9/04 at 07:23 AM |
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i've welded the head of a bolt onto the outside of a chassis tube several times in my build, to aviod drilling the chassis weak. then again, ive
also drilled thru many times too. when ive put the bolt thru a bar i dont weld the thread in, just the head. its doesnt matter on the less structural
tubes.
how about welding small tabs on, of say 3mm strip, and then welding bolts and nuts onto these.
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James
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| posted on 10/9/04 at 09:38 AM |
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quote:
Originally posted by JoelP
how about welding small tabs on, of say 3mm strip, and then welding bolts and nuts onto these.
That's how I'd do it. You could even make them the engine bay strengthening gussets it you're bothered about the weight.
James
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Northy
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| posted on 10/9/04 at 04:59 PM |
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Thats what I did at the rear, a tab at each side.
At the front I used the inside of the headlight brackets.
Graham
Website under construction. Help greatfully received as I don't really know what I'm doing! 
"If a man says something in the woods and there are no women there, is he still wrong?"
Built 2L 8 Valve Vx Powered Avon
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