Author Topic: NACA 66 Special A/BGS  (Read 598723 times)

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Offline Tman

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Re: NACA 66 Special A/BGS
« Reply #570 on: March 14, 2013, 10:26:13 AM »
x2 on Teflon tape. Junk.

But man that body is sexy! :cheers:

Offline manta22

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Re: NACA 66 Special A/BGS
« Reply #571 on: March 14, 2013, 12:13:56 PM »
I disagree-- Teflon tape is OK and it holds up to a relatively high temperature. The key to success is wrapping the tape around the threads in the right direction, putting on just enough to seal, and not allowing the tape edges to get near the end of the fitting where it can get into the lines. Winding the tape on the threads with a little tension lets it seat down into the threads so it doesn't interfere with screwing the fittings together.

Loctite is also good; they also make a "hydraulic sealant" that I use when I have a fitting that I don't envision ever taking loose again.

As they say "You pays yer money and yer takes yer choice".

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline DND

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Re: NACA 66 Special A/BGS
« Reply #572 on: March 14, 2013, 12:16:27 PM »
At the Riverside 69' Trans-an race i had 2 engines out there and a tapered pipe plug in the intake was leaking, so the team wrench used the tape to seal the leak

He wound up splitting the cast alum manifold because of the taper in the pipe plug just forced it to split as you can't feel it getting tight like you can with a sealer. The teflon acts like a lube.

So the #2 factory team car sat in the pits during the race as no time to swap a manifold

That tape is not good

Don

Offline manta22

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Re: NACA 66 Special A/BGS
« Reply #573 on: March 14, 2013, 12:20:58 PM »
Finesse, Don-- finesse. Some people can fu*k up an anvil.  :-D

Regards, Neil  Tucson, AZ
Regards, Neil  Tucson, AZ

Offline Tman

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Re: NACA 66 Special A/BGS
« Reply #574 on: March 14, 2013, 12:33:48 PM »
I learned my plumbing from an old USAF wrench that worked on SR71s. He did all the cars in our hotrod shop. He never used tape, there is always a better sealant these days.

Back to Robs thread.

Offline Rex Schimmer

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Re: NACA 66 Special A/BGS
« Reply #575 on: March 14, 2013, 01:05:09 PM »
Rob,
The body looks great!!! I know how much work Eric has put into it and you and your guys on the chassis and engine. It is really going to be great to see them joined together. The "fun" has just begun!

Rex
Rex

Not much matters and the rest doesn't matter at all.

Offline dw230

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Re: NACA 66 Special A/BGS
« Reply #576 on: March 14, 2013, 02:00:00 PM »
Trent,

Weren't SR71s noted for fuel leaks on the flight line? Maybe tape would have helped.

Neil,

Just like my father taught me, wind with the threads, use just enough to do the job.

DW
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Offline Tman

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Re: NACA 66 Special A/BGS
« Reply #577 on: March 14, 2013, 02:16:11 PM »
Trent,

Weren't SR71s noted for fuel leaks on the flight line? Maybe tape would have helped.

Neil,

Just like my father taught me, wind with the threads, use just enough to do the job.

DW

Hence the reason they kept the Mexican on call! I KNEW someone would bring up that fact :roll:

Rob, do you guys have a color scheme picked out? Like I said, this is if anything a great looking car! :cheers:

Offline Dr Goggles

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Re: NACA 66 Special A/BGS
« Reply #578 on: March 14, 2013, 02:46:30 PM »
Great too see the progress Rob and co. Really looking forward to seeing this car debut. Another solution to the same old problem of not going fast enough and I reckon your answer is going to be really interesting :cheers:
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

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Offline Seldom Seen Slim

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Re: NACA 66 Special A/BGS
« Reply #579 on: March 14, 2013, 03:02:18 PM »
A the NW Reunion a few years ago the Friday night speaker was the pilot that had logged the most hours at the controls of the SR71.  He told us that the plane was leaky -- really leaking when static on the flight line.  When it was flying at speed the wind resistance was so high that the heat made all the plane get so hot that things expanded and gaps shrank and so on -- it was tight at speed.

Also -- the SR71 would commonly take off with a small load of fuel and then top up when flying -- easier to get a part-empty plane into the air without spending tons of fuel to get going.
Jon E. Wennerberg
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Offline bbarn

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Re: Re: NACA 66 Special A/BGS
« Reply #580 on: March 14, 2013, 07:35:14 PM »
I don't think I could have picked a worse week to come to Cancun! The scuba is great, weather is WAY better and I have Tony's avitars walking around all day...still, I can't wait to get back to the shop and see it first hand. Save something for me to do Rob!!! :)
I almost never wake up cranky, I usually just let her sleep in.

Offline robfrey

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Re: NACA 66 Special A/BGS
« Reply #581 on: March 14, 2013, 11:32:48 PM »
More pics of today's progress.




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Offline tauruck

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Re: NACA 66 Special A/BGS
« Reply #582 on: March 15, 2013, 02:04:56 AM »
Ooh Yes!!!!! What can I say?. Awesome.

Offline Freud

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Re: NACA 66 Special A/BGS
« Reply #583 on: March 15, 2013, 03:23:36 AM »
Hume knows exactly how you feel.

FREUD
Since '63

Offline WOODY@DDLLC

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Re: NACA 66 Special A/BGS
« Reply #584 on: March 15, 2013, 08:05:27 AM »
Hume knows exactly how you feel.

FREUD

But without the files you'll never know perxactly how Hume feels!  :-o :-D

Rob, your timing is great for our Project 550 withdrawals!  :cheers:

Ohio Mile??  :?
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