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Subject:Re: Swage Bit + Bolt for Pop Top Cable. Strong enough?
From:Alistair Bell
Date:Tue, 3 Aug 2010 21:54:46 -0700

Neil,

I'd be inclined to heat the stainless with torch to red and then
bend. You probably would be able to get away with bending cold, but
I'd heat it.

I noticed a guy on the samba ( "spitsandrovers"?) in response to your
query, said he never used a crimper, just vice grips. Well all I can
say is he must be crimping small and lightly loaded stuff. if you
have access to real crimper/swager, use it even if its an awkward
tool to get in position for your job. And besides, your swaging a
stainless fitting, not some soft alloy.

5mm bolt, kept tight, i think would be strong enough.

there is a surprising amount of force contained in the lift assembly,
its good your thinking about strength of materials.

good luck

alistair

On 3-Aug-10, at 9:03 PM, neil n wrote:

Hi all.

Trying to come up with a way to make a cable ( I'll use 3/32" OD)
for the
spring in pop top.

Thinking this: (PN 190025):
http://www.westernmarine.com/acrobat/blu190025.pdf  held with bolt
through
hole in lower arm where "Z" bit was. There might be enough room for a
nylon
locking nut on other side of arm. New part needs to be bent to follow
curve
at end of arm.

Would bending this stainless part ~ 45* weaken the metal to much to be
useable in this application?

Would a 5 mm bolt in that application be strong enough not to shear?

Any educated guesses?

On the other end of cable, I would drill out the stopper, pass cable
through, leave ~ 1/2" end exposed, crimp on a stopper. (though I'm
not sure
if there would be enough room between pivot pin and exposed cable +
crimp)

Neil.

--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

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