Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

injector o rings

Thread Tools
 
Search this Thread
 
Old 04-27-2015, 05:25 PM
  #1  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default injector o rings

so as I'm pulling the fuel rail off to replace the exhaust manifold, i notice the injectors are gummed up like crazy and the o rings at the top of the injectors where they go in the fuel rail, are pretty much rotten. any suggestions on where to get replacements?
or, if i go to pnp and find the 4 hole ones, is there anything else i need to get or do with them? I'm still learning all of this stuff, so please be patient with me
Old 04-27-2015, 05:42 PM
  #2  
kgm
CF Veteran
 
kgm's Avatar
 
Join Date: Oct 2013
Location: Denver
Posts: 1,589
Likes: 0
Received 1 Like on 1 Post
Year: 99
Model: Cherokee
Engine: 4.0
Default

Most auto parts stores will have injector o-rings. They're ~$5.

If you get replacement ones, you'll want to clean them out and put new o-rings on. I just bought some refurbed ones off here.
Old 04-27-2015, 07:49 PM
  #3  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,864
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

My patience is wearing very thin...

Just kidding!! Injector o-rings are common as belly buttons. I'd stick a set of 746 Volve injectors in that old rEnix. Programbo here on cF has them refurbished, with new o-rings....
Old 04-27-2015, 09:34 PM
  #4  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

lol thanks cruiser. is that the ones i saw he had for sale? anything else need to be done with it to work with them?
also, im gonna try to clean out all the gunk from the intake manifold before reinstalling. any suggestions there? i also see junk building on the walls right where the intake manifold mounts. gonna clean that the best i can as well.
has anybody ever wrapped their exhaust manifold with exhaust wrap/insulation to help cut back on this said high heat in the engine bay? i read about it and about the vents that folks install, but my bro suggested that. didn't know if it would help or not.
Old 04-27-2015, 09:54 PM
  #5  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,864
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by camohunter01
lol thanks cruiser. is that the ones i saw he had for sale? anything else need to be done with it to work with them?
also, im gonna try to clean out all the gunk from the intake manifold before reinstalling. any suggestions there? i also see junk building on the walls right where the intake manifold mounts. gonna clean that the best i can as well.
has anybody ever wrapped their exhaust manifold with exhaust wrap/insulation to help cut back on this said high heat in the engine bay? i read about it and about the vents that folks install, but my bro suggested that. didn't know if it would help or not.
Tell him you want 746s. Forget the header wrap. Degrease the intake manifold best you can. New NTK O2 sensor at the same time?
Old 04-27-2015, 10:04 PM
  #6  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

10-4. might as well go ahead and go with new O2 sensor. didn't think about that. i know I'm not working on this thing to be a race truck, but i may end up putting a new exhaust system on it soon. i noticed how bad the pipe is right below the manifold. looks like its been beat to hell.
Old 04-27-2015, 10:23 PM
  #7  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,864
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by camohunter01
10-4. might as well go ahead and go with new O2 sensor. didn't think about that. i know I'm not working on this thing to be a race truck, but i may end up putting a new exhaust system on it soon. i noticed how bad the pipe is right below the manifold. looks like its been beat to hell.
I would do it. They're due to be replaced every 82,000 miles or so.
Old 04-27-2015, 10:23 PM
  #8  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

Old 04-27-2015, 10:25 PM
  #9  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

oh damn. yeah, i will certainly do that. thanks a lot. i messaged Programbo. hopefully i can get a reply tomorrow.
Old 04-27-2015, 10:26 PM
  #10  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,864
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Exhaust color looks good. FWIW, I stole your photo to use as a demonstration of the "D" crush. Thanks.
Old 04-27-2015, 10:33 PM
  #11  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

anything wrong with bosch?
Old 04-27-2015, 10:34 PM
  #12  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

lol glad i could help, as much of a pain I'm sure I've been. D crush? i guess i need to do more research
Old 04-27-2015, 10:36 PM
  #13  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,864
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by camohunter01
anything wrong with bosch?
Yes. They suck. NTK all the way!!

You're re-doing your whole exhaust? You could learn a whole bunch about "D" crush.........
Old 04-27-2015, 10:37 PM
  #14  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default




Old 04-27-2015, 10:38 PM
  #15  
Member
Thread Starter
 
camohunter01's Avatar
 
Join Date: Feb 2015
Location: the great south Texas
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0
Default

ok, then i will have to find the right one. searches are giving me all sorts of results. i will eventually do it some day, but not soon.


Quick Reply: injector o rings



All times are GMT -5. The time now is 03:07 AM.