Safety wiring bolt heads, Do's and Don'ts...

[Road Trip]

Man, I just think that hydraulic tester sounds annoying. I couln't turn my volume down enough. Must be the pumps, as I loved the sound of the 6v53 I owned (for a few weeks) in a truck.... I'd love to have one again.

If you were listening to that hydraulic mule through laptop speakers
(or worse, the tiny smart phone speaker) then I agree, it would
drive me out of the room.

You know, all this whiz-bang computer stuff can deliver pretty decent
visuals, but 99% of what people listen to while watching videos is
a 1/2 step above the old AM pocket radios. :-(

Now, if you were to locate a full-range (all 10 octaves) home theater
setup that was clean to ~120 db, stuff in a set of (28 db)earplugs, then
cover your ears with a set of (28 db) earmuffs, set the volume to a
lifelike sound pressure level, and *then* watch the video, then you
could 'feel' what it was like to be around that thing. NOTE: I always
treated PSI like volts, and this thing putting out 2 channels of 3000
psi had my non-stop respect. Maybe the intensity colored my perception
of the sound -- guess you have to be there? :0)

Kind of like when I saw Ted Nugent in the Royals Stadium during a late
'70s Summer Jam, I could FEEL the sound of his guitar playing on my
chest. Incruckinfredible! And when I got home the late night news
reported that there had been noise complaints from *8* miles away.
(Note: I actually was wearing ear plugs, for Ted had a sonic reputation
that preceded him. :0)

****

How about this? So that others can appreciate the basso profundo
song of a Detroit Diesel with a proper exhaust, check out this
minty clean squarebody pickup with a sweet 6V53
installed.

The sound quality is pretty decent...this truck might be worth
your while to play it on a home theater setup.

Enjoy --

PS - Here's a neat little writeup on some of the intricacies
of the Detroit Diesel family.

 

[Erik the Awful]

If you were listening to that hydraulic mule through laptop speakers
(or worse, the tiny smart phone speaker) then I agree, it would
drive me out of the room.

Mules were one of the worst pieces of equipment, sound-wise. Air start carts, on the other hand, are glorious.

On a side note, if you get an air start cart back from overseas, always check the exhaust for contraband before you fire it up. Otherwise you might light up some Cubans.

 

[Road Trip]

Mules were one of the worst pieces of equipment, sound-wise. Air start carts, on the other hand, are glorious.

EDIT:

I'm dating myself, but on the flightline with the C-130 A-models the electrical
ground power units (MD-3)were powered by a 180hp flat-6 Continental.
Lycoming? (I think?)**

Dual exhaust out the top, little or no muffling attempted.

Had a nice bellow under a load, but my favorite was to push the throttle
in and let it idle for a few seconds prior to shutdown. Man, when it idled
it really had that chuggeda chuggeda Rock-N-Roll going on. Loved that!

****

** Thanks to GoToGuy in reply #85 for getting it right. Understand that
I only got to get a quick peek at the internals, for the AGE guys didn't
appreciate us pointy heads poking around inside their toys.
Flat-6 Continental it was! :0)

 

[HotWheelsBurban]

If you were listening to that hydraulic mule through laptop speakers
(or worse, the tiny smart phone speaker) then I agree, it would
drive me out of the room.

You know, all this whiz-bang computer stuff can deliver pretty decent
visuals, but 99% of what people listen to while watching videos is
a 1/2 step above the old AM pocket radios. :-(

Now, if you were to locate a full-range (all 10 octaves) home theater
setup that was clean to ~120 db, stuff in a set of (28 db)earplugs, then
cover your ears with a set of (28 db) earmuffs, set the volume to a
lifelike sound pressure level, and *then* watch the video, then you
could 'feel' what it was like to be around that thing.

Kind of like when I saw Ted Nugent in the Royals Stadium during a late
'70s Summer Jam, I could FEEL the sound of his guitar playing on my
chest. (!) And when I got home the late night news reported that there
had been noise complaints from *8* miles away. (Note: I actually was
wearing ear plugs, for Ted had a sonic reputation that preceded him.
:0)

****

How about this? So that others can appreciate the basso profundo
song of a Detroit Diesel with a proper exhaust, check out this
minty clean squarebody pickup with a sweet 6V53
installed.

The sound quality is pretty decent...it might be worth
your while to play it on a home theater setup.

Enjoy --

PS - Here's a neat little writeup on some of the intricacies
of the Detroit Diesel family.

I just checked that video out, huge grin on my face! That truck sounds badass and looks like a good build.

 

[GoToGuy]

I don't remember where I was , but the place we flew into was not a heavy cargo aircraft base. And the ground support airman brought out one of the IO-360 continental powered generators. I checked the output power capacity. Yeah it would work for any fighter or a C130, but not a C5 using the winch and both HVAC packs, lighting and radios. He came back with diesel 4-71 much better.

 

[Road Trip]

Kind of like when I saw Ted Nugent in the Royals Stadium during a late
'70s Summer Jam, I could FEEL the sound of his guitar playing on my
chest. Incruckinfredible! And when I got home the late night news
reported that there had been noise complaints from *8* miles away.
(Note: I actually was wearing ear plugs, for Ted had a sonic reputation
that preceded him. :0)

In the interest of accuracy, I decided to see if I could verify that
45+ year old memory. Turns out I misquoted the distance --
during an interview with David Letterman the Motor City Madman
stated that it was *18* miles away. (!) It's rough old-school VCR
recording quality, but starting at ~2:15 they discuss the concert
at Arrowhead stadium. (They are side by side, and I went to
concerts in both, so I'm going to give myself a pass on getting
the details a bit wrong above. :0)

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In terms of all-time personal best SPLs, the Nugent concert
was 2nd-loudest of all time for me. The loudest was a
top-fuel exhibition run by Shirley Muldowney at the Epping, NH
dragstrip back in the '90s. I was standing just a few feet from
the starting line, and when she took off the sound of her
Top Fuel rail literally blurred my vision! And she hit the traps at 304 mph.

And afterwards she was like the genuinely pleasant neighbor down the
street dropping off a slice of her homemade apple pie when she
autographed a picture of her in her machine for yours truly.
(I'm not worthy, she just went 3x as fast as I ever had at
my old stomping grounds! :0)

Alright, back to our regularly scheduled program...

 

[Erik the Awful]

e came back with diesel 4-71 much better.

That's a -86, aka "a Hobart". They're pretty long-in-the-tooth now. It's hard to find one that runs well reliably. The depot has always been shady. We've received "rebuilt" engines that only got a fresh coat of paint. They were built in the '80s, but were obviously designed by a lazy 1950s engineer who decided that spade terminal boards were superior to those newfangled sealed connectors. Most wiring problems are solved by taking every terminal loose one at a time, tightening them, and reinstalling. The newer B809s have their own variety of problems, but at least they're newer so they tend to run more reliably.

 

[Road Trip]

In some areas or attachments there are special washers can be used for a " secure positive mechanical locking feature ". A few out of my hardware drawer. Tabs to lock on flats, with opposite tab in a hole, notch or edge. The other, tabs on flats as the arrow point is against perpendicular surface or hardware.

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GoToGuy,

Your photo reminded me of some factory locking fasteners
I used to find on Chevrolet vehicles back in the day. More
specifically, needing to remember to bring a suitable flat
chisel to the Treasure Yard in order to be able to remove
the factory cast iron exhaust manifolds from a SBC...so
that we could take those double-bump heads with us. (!)
(see attached below -- replacements for sale at Jeg's.)

My curiosity piqued, I tried to find out a little more about
how Chevrolet essentially took inexpensive stamped steel
and allowed them to get the safety wire functionality for
1/100 of the installation time/labor/cost.

Once I tunneled down in some of the 100-point 'vette restoration
conversations, I found out that the actual name for these
things are "French Locks". (?)

Then I found a picture of a pair of fasteners secured by a factory
French Lock on the halfshaft of a '66 Corvette:

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(credit: corvetteforum.com (link)

NOTE: And if you find yourself riding around in one of these old 'Vettes as either driver or riding shotgun,
and you aren't absolutely sure that these are installed & providing the extra security against a halfshaft
loosening & flailing away (think of what little is between that halfshaft & your back) ...then run, don't walk
to these folks and buy a set asap:

Cheap insurance, yet often tossed/lost/forgotten by the PO. Don't leave the driveway without 'em!

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****

You know, this whole safety wire conversation has been really interesting.
Who knows? Maybe someone will read about our fixation with keeping
things together at high speeds & decide to add a little cheap mechanical
insurance policy here & there on their own project(s).

Positive locking for safety isn't only installing cotter pins on the steering
bits -- especially if you've added additional twist to your drivetrain!)

Safe travels --

 

[RichLo]

I've been thoroughly entertained with this thread and never thought it would bring out so many experts when I originally posted some crappy pics of a 100-year old tractor crankshaft, lol.

 

[BeXtreme]

Here's a little more info for anyone interested. The aviation general guidance for safety wire application is defined by the FAA in AC 43.13-1b. Lots of good reading and pictures starting on Page 328 of the PDF

https://www.faa.gov/documentlibrary/media/advisory_circular/ac_43.13-1b_w-chg1.pdf