Pop quiz time: what is the difference between
red and blue locktite?
What is galvanic corrosion, when does it occur,
and why should you give a shit? (Hint: do you
own a car?)
When/where do you use copper anti-seize?
What do you use on exhaust studs/brass nuts? Why?
A pilot that doesn't have black under his fingernails
and chunks missing from his hands and forearms is
good for shit.
Locktite
-
David MacRay
- Posts: 1259
- Joined: Wed Jun 03, 2015 3:00 pm
Red vs Blue, one is for something you don't plan on taking apart after you put it together. I think blue. The other is for something you will take apart like a inspection cover. You want to take it off to inspect whatever is behind it.
Galvanic corrosion I think is when dissimilar metals contact each other. Can be made worse with some electricity flowing through one of the objects.
I have only used anti-seize on threaded conduit pipe.
When you build explosion proof electrical systems you need to use something to keep the threads from seizing, because if an arc inside the system causes gases to combust, the hot gas expanding needs to escape to prevent the device from exploding.
Galvanic corrosion I think is when dissimilar metals contact each other. Can be made worse with some electricity flowing through one of the objects.
I have only used anti-seize on threaded conduit pipe.
When you build explosion proof electrical systems you need to use something to keep the threads from seizing, because if an arc inside the system causes gases to combust, the hot gas expanding needs to escape to prevent the device from exploding.
-
Colonel
- Posts: 3450
- Joined: Wed Apr 29, 2015 10:31 am
[quote]dissimilar metals contact each other[/quote]
Like a steel spark plug screwed into an aluminum
cylinder head (admittedly with a helicoil).
Without a dab of copper anti-seize, that spark
plug is going to be a very difficult to remove later.
Like a steel spark plug screwed into an aluminum
cylinder head (admittedly with a helicoil).
Without a dab of copper anti-seize, that spark
plug is going to be a very difficult to remove later.
-
David MacRay
- Posts: 1259
- Joined: Wed Jun 03, 2015 3:00 pm
Good plan. I never had a problem with the aluminum heads on dirt bikes but they were two strokes so there was a lot of oil being forced into the threads while it ran. Also had to clean or replace the spark plugs often. NGK made the best ones by far.
Have you seen the plexiglass cylinder head video? Maybe you posted it?
Edit: sorry, it was regular glass, plexiglass cylinder head in Google did not find the video.
Have you seen the plexiglass cylinder head video? Maybe you posted it?
Edit: sorry, it was regular glass, plexiglass cylinder head in Google did not find the video.
-
Colonel
- Posts: 3450
- Joined: Wed Apr 29, 2015 10:31 am
Not much changes. I use NGK Iridium - best I can get -
on the sport bikes. I try to change them every 20,000
miles or so - the gaps open up.
The spark plugs are not easy to get at, on a dual overhead
cam engine on a crotch rocket, jammed up into the tank.
First, you take off all the fairings. Then, you take off
the radiator. Then, with a very special tool that drops
deep into the spark plug well, you can R+R the plugs.
You can bet your ass I put a dab of anti-seize on the
threads, so I can get them out next time.
Compared to adjusting the valves, that's actually
not a bad job. First, you measure the slack, then
you remove the fucking camshafts - really - and
replace the shim-under-bucket spacers which
are designated various thicknesses with letters,
assuming you can get the replacement shims
you need, and you do the arithmetic right.
Working on motorcycles is actually far demanding
than aircraft maintenance - the penalty for failure
is far higher.
The nice thing is that you don't need any paper
for it. TC comes along and doesn't like how you
do your motorcycle maintenance, or doesn't like
the paperwork on your motorcycle parts, well,
they can fuck off.
Last week, put a set of Pirelli Diablo Supercorsa
SP V2's on. Glorious. Like riding a much more
expensive motorcycle. They come stock on the
new high-end Ducati's.
Of course, there is no paper whatsoever for
retrofitting them to my sport bikes. TC can go
fuck itself.
[img width=500 height=297][/img]
Two stupid fucking airshow pilots, there. We
spend a lot of time with our heads down reading
the thick checklists we bring, on the sport bikes.
We need them because we forget how to ride them
sometimes and we find it convenient to read a
book while we're riding.
Here are another couple of stupid fucking airshow
pilots:
[img width=500 height=281]http://static1.1.sqspcdn.com/static/f/3 ... -GoPro.jpg[/img]
What you can't see in this photo, is that the guy
on the bike is holding a thick book in his right
hand, and he's reading it, as he grabs the tail
of the inverted Pitts with his left hand.
He needs to read the book while he's riding
because he's not too bright, and he forgets how.
I think that's Rob Holland's old S-2C, that he
flew 'way back when. That was when Rob was
just starting out in contest flying, and wanted
some dual on surface acro, which Arlo Speer
stopped him from getting, presumably to try to
make Rob crash. Fortunately Arlo failed, and
Rob taught himself, and didn't crash.
Why TC tries to stop advanced training is an
interesting question. Egalitarianism seems to
be far more important than safety.
on the sport bikes. I try to change them every 20,000
miles or so - the gaps open up.
The spark plugs are not easy to get at, on a dual overhead
cam engine on a crotch rocket, jammed up into the tank.
First, you take off all the fairings. Then, you take off
the radiator. Then, with a very special tool that drops
deep into the spark plug well, you can R+R the plugs.
You can bet your ass I put a dab of anti-seize on the
threads, so I can get them out next time.
Compared to adjusting the valves, that's actually
not a bad job. First, you measure the slack, then
you remove the fucking camshafts - really - and
replace the shim-under-bucket spacers which
are designated various thicknesses with letters,
assuming you can get the replacement shims
you need, and you do the arithmetic right.
Working on motorcycles is actually far demanding
than aircraft maintenance - the penalty for failure
is far higher.
The nice thing is that you don't need any paper
for it. TC comes along and doesn't like how you
do your motorcycle maintenance, or doesn't like
the paperwork on your motorcycle parts, well,
they can fuck off.
Last week, put a set of Pirelli Diablo Supercorsa
SP V2's on. Glorious. Like riding a much more
expensive motorcycle. They come stock on the
new high-end Ducati's.
Of course, there is no paper whatsoever for
retrofitting them to my sport bikes. TC can go
fuck itself.
[img width=500 height=297][/img]
Two stupid fucking airshow pilots, there. We
spend a lot of time with our heads down reading
the thick checklists we bring, on the sport bikes.
We need them because we forget how to ride them
sometimes and we find it convenient to read a
book while we're riding.
Here are another couple of stupid fucking airshow
pilots:
[img width=500 height=281]http://static1.1.sqspcdn.com/static/f/3 ... -GoPro.jpg[/img]
What you can't see in this photo, is that the guy
on the bike is holding a thick book in his right
hand, and he's reading it, as he grabs the tail
of the inverted Pitts with his left hand.
He needs to read the book while he's riding
because he's not too bright, and he forgets how.
I think that's Rob Holland's old S-2C, that he
flew 'way back when. That was when Rob was
just starting out in contest flying, and wanted
some dual on surface acro, which Arlo Speer
stopped him from getting, presumably to try to
make Rob crash. Fortunately Arlo failed, and
Rob taught himself, and didn't crash.
Why TC tries to stop advanced training is an
interesting question. Egalitarianism seems to
be far more important than safety.
-
Nark1
That's Billy Werth. He really is a four-bar. Last I heard he was on leave to fly air shows during the summer.
http://billywerthairshows.com
http://billywerthairshows.com
-
Skyhunter
- Posts: 7
- Joined: Wed Jul 13, 2016 8:16 pm
[quote author=Colonel Sanders link=topic=4197.msg11186#msg11186 date=1473569181]
Pop quiz time: what is the difference between
red and blue locktite?
What is galvanic corrosion, when does it occur,
and why should you give a shit? (Hint: do you
own a car?)
When/where do you use copper anti-seize?
What do you use on exhaust studs/brass nuts? Why?
A pilot that doesn't have black under his fingernails
and chunks missing from his hands and forearms is
good for shit.
[/quote]
I know many very competent pilots that don't have dirt under their finger nails. That statement angers me a lot. As as many accompished fighter pilots, myself included, don't go anywhere near an airplane with a wrench. It is only the last 10 years I have started doing my own maint on my vehicles. It never detracted once from my ability to fly low level at over 500 kts.
Pop quiz time: what is the difference between
red and blue locktite?
What is galvanic corrosion, when does it occur,
and why should you give a shit? (Hint: do you
own a car?)
When/where do you use copper anti-seize?
What do you use on exhaust studs/brass nuts? Why?
A pilot that doesn't have black under his fingernails
and chunks missing from his hands and forearms is
good for shit.
[/quote]
I know many very competent pilots that don't have dirt under their finger nails. That statement angers me a lot. As as many accompished fighter pilots, myself included, don't go anywhere near an airplane with a wrench. It is only the last 10 years I have started doing my own maint on my vehicles. It never detracted once from my ability to fly low level at over 500 kts.
-
Colonel
- Posts: 3450
- Joined: Wed Apr 29, 2015 10:31 am
[quote]many accompished fighter pilots, myself included, don't go anywhere near an airplane with a wrench[/quote]
I'm so glad to hear that nothing ever goes wrong
with a fighter!
This is quite a change from the old days at CEPE,
when you had to have a clue.
I had no idea the ancient F-18's in Canada today
were so reliable!
I'm really happy to hear that in addition to not
having any stick & rudder skill, that pilots don't
need to have any understanding of their systems.
Broken quill shafts on T-33's are clearly a distant
memory.
[img][/img]
See, in the modern Canadian military, all the
hardware is brand new, so silly things like repairs
are never required.
I'm so glad to hear that nothing ever goes wrong
with a fighter!
This is quite a change from the old days at CEPE,
when you had to have a clue.
I had no idea the ancient F-18's in Canada today
were so reliable!
I'm really happy to hear that in addition to not
having any stick & rudder skill, that pilots don't
need to have any understanding of their systems.
Broken quill shafts on T-33's are clearly a distant
memory.
[img][/img]
See, in the modern Canadian military, all the
hardware is brand new, so silly things like repairs
are never required.
-
Nark1
Col,
We are expected to know how systems work all to the point of ad nauseum. We just don't wrench on the bird.
Every flight day requires a maintenance inspection, if I don't have to de-brief I'll help remove some panels so the mechanics can inspects whatever widgets are behind them, however I honestly don't have grease on my hands after a flight. (Yes yes insert helicopter leaking joke here...)
The Airbus has certain maint functions we as pilots can do, but they pretty much are limited to pulling certain cb's in order and a timed event. If that doesn't solve the problem, we hand it over to an A&P.
As for GA, I'm constantly covered in grease.
I'd say it's all in the scope of your job. You can thank lawyers over the time for limiting that for pilots.
We are expected to know how systems work all to the point of ad nauseum. We just don't wrench on the bird.
Every flight day requires a maintenance inspection, if I don't have to de-brief I'll help remove some panels so the mechanics can inspects whatever widgets are behind them, however I honestly don't have grease on my hands after a flight. (Yes yes insert helicopter leaking joke here...)
The Airbus has certain maint functions we as pilots can do, but they pretty much are limited to pulling certain cb's in order and a timed event. If that doesn't solve the problem, we hand it over to an A&P.
As for GA, I'm constantly covered in grease.
I'd say it's all in the scope of your job. You can thank lawyers over the time for limiting that for pilots.