Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

teflon tape on npt or -AN or both for fuel?

Thread Tools
 
Search this Thread
 
Old Nov 7, 2002 | 03:52 PM
  #1  
MIGHTYMOUSE's Avatar
Thread Starter
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Liked
iTrader: (59)
 
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
Default teflon tape on npt or -AN or both for fuel?

or neither?

i was thinking of using some to be safe, but with these russel fittings i got, is it necessary at all? just dont want to do it all twice.

heres the pic of my stuff <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

http://community.webshots.com/photo/...54472561ycoKHI
Reply
Old Nov 7, 2002 | 04:19 PM
  #2  
justin sutton's Avatar
TECH Enthusiast
 
Joined: Jul 2002
Posts: 731
Likes: 0
From: dyersburg,tn
Default Re: teflon tape on npt or -AN or both for fuel?

Put the teflon tape on the npt side but not the an side it doesn't need it.
Reply
Old Nov 7, 2002 | 05:59 PM
  #3  
red ws6 99's Avatar
TECH Fanatic
 
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
Default Re: teflon tape on npt or -AN or both for fuel?

Putting tape on the AN would be a waste of time, the sealing surface is the 37 deg flare.

Gary
Reply
Old Nov 7, 2002 | 06:16 PM
  #4  
WJ SOM SS's Avatar
TECH Junkie
iTrader: (11)
 
Joined: Jan 2002
Posts: 3,489
Likes: 0
From: Paxton, Ma.
Default Re: teflon tape on npt or -AN or both for fuel?

Don't risk getting any shreds or tiny pieces of tape inside fuel line. It will raise hell w/everything. As he said--the flare makes the seal. Always use 2 wrenches when tightening or loosening that type nut. WJ. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Reply
Old Nov 7, 2002 | 06:41 PM
  #5  
GeorgeC's Avatar
TECH Junkie
 
Joined: Nov 2001
Posts: 3,987
Likes: 0
From: Melbourne, FL
Default Re: teflon tape on npt or -AN or both for fuel?

Ditto... Don't use anything on the AN sides of the fitting. Use some teflon paste or tape on the NPT threads.

Just be careful if you use tape, since it's possible for it to break off and go places it shouldn't be. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Reply
Old Nov 7, 2002 | 06:53 PM
  #6  
Tin Indian's Avatar
TECH Fanatic
 
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Default Re: teflon tape on npt or -AN or both for fuel?

Looks like we may have some folks here that have aircraft experience.

There right; [No] tape on the AN fittings. Use tape on the pipe thread fittings (aluminum or otherwise).

Ron,
Reply
Old Nov 7, 2002 | 06:57 PM
  #7  
Tin Indian's Avatar
TECH Fanatic
 
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Default Re: teflon tape on npt or -AN or both for fuel?

Also, when you put the tape on the male end of the pipe thread, wrap it in the direction of rotation.

This will keep the teflon tape from "balling" up on the treads as the fitting is tightened in the normal clockwise rotation.

Ron,

<small>[ November 07, 2002, 06:59 PM: Message edited by: Kimchee and Rice ]</small>
Reply




All times are GMT -5. The time now is 09:16 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE