• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Fuel Injector O-ring replacement ???

  • Thread starter Thread starter gregpro50
  • Start date Start date Dec 28, 2004

gregpro50

Member
Sep 11, 2004
140
0
16
Binghamton NY
Dec 28, 2004
#1
  • Dec 28, 2004
  • #1
I am trying to change the O-rings on my injectors so I can swap them into a new intake. I cant seem to change the bottom ones without getting the lower caps off. I already broke one :damnit: Is there a trick to changing the lower O-rings ?? Also, where can I get a replacement cap ?? The parts store doesnt seem to have them. I hope I didnt ruin a perfectly good injector.
 

88-GT

Member
Oct 8, 2004
183
2
18
Dec 28, 2004
#2
  • Dec 28, 2004
  • #2
Umm you should be able to buy them at your partstore. I had to do a couple on mine and they come with a sort of rebuild kit....comes with the cap and both o rings.....might have to ask for the whole kit I dunno if they come with just the o rings. I got mine from partsource. Good Luck.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Dec 28, 2004
#3
  • Dec 28, 2004
  • #3
Go to pep boys and buy at least 8 packs of injector pintle cap/O ring kits. Their $2.50 each kit. Just hand them this part number and get them Borg-Warner P/N 274081. The pintle caps are a bitch to put on w/o breaking them so I highly suggest buying spares. Unfortunatly, I speak from experience. I'd buy at least 12 packs because you WILL break some. Each kit comes with all you need to rebuild 1 injector (2 O rings, 1 spacer and 1 cap)

Mike
 

giddyup306

Founding Member
Oct 22, 2002
3,041
2
59
Dec 28, 2004
#4
  • Dec 28, 2004
  • #4
You can get them from napa. They call them "seal kits". A word of wisdom is put the pintle caps in boiling watter for a few minutes to soften them up. This virtually iliminates all breakage.
 

gregpro50

Member
Sep 11, 2004
140
0
16
Binghamton NY
Dec 29, 2004
#5
  • Dec 29, 2004
  • #5
I just got the seal kits from Napa after trying everywhere else is town. Advance auto and Autozone have never heard of them. That boiling them in water trick works slicker than *****. Only bad part was that my girlfriend came home while I was doing them and thought I was cooking dinner.
 
M

MadHandle8169

Founding Member
May 5, 2002
432
0
0
Brick, NJ
May 10, 2005
#6
  • May 10, 2005
  • #6
Is this recommended when changing Intake Manifolds? I can't seem to find them anywhere and don't want to wait anymore.
 
C

criticman

Member
Sep 7, 2003
723
1
16
Rome, GA
May 10, 2005
#7
  • May 10, 2005
  • #7
I second MadHandle's question. I have a new Cobra intake waiting for me to install it on my 101k miles '93...would rebuilding the injectors be a wise investment?
 
You must log in or register to reply here.

Similar threads

I
2000 GT Mustang - Transmission Cooler to Radiator o-rings
  • Iwarrior
  • Oct 4, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
140
1996 - 2004 SN95 Mustang -General/Talk- Oct 4, 2025
Iwarrior
I
Engine Light throttle miss
  • Dontknowchit
  • Jul 7, 2025
  • Fox 5.0 Mustang Tech
Replies
1
Views
159
Fox 5.0 Mustang Tech Jul 7, 2025
AeroCoupe
M
2001 evap/heater core questions
  • mnky99
  • Sep 3, 2025
  • SN95 V6 Mustang Tech
Replies
3
Views
277
SN95 V6 Mustang Tech Sep 3, 2025
mnky99
M
Fuel Pump O ring
  • TIGGER
  • Oct 21, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
550
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 15, 2024
manicmechanic007
M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
45
1996 - 2004 SN95 Mustang -General/Talk- May 29, 2026
Mhaley2006
M
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?