2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Fuel Injector Replacement for Turbo 2

Thread Tools
 
Search this Thread
 
Old Sep 13, 2018 | 01:52 PM
  #1  
DaKeL's Avatar
Thread Starter
Junior Member
Tenured Member 15 Years
 
Joined: Jul 2005
Posts: 34
Likes: 0
From: VA
Fuel Injector Replacement for Turbo 2

I'm having trouble getting to the fuel injector and can't seem to find any instructions on how to do it for a t2.
Do I just remove the 4 nuts here and pull out the intake manifold as one piece?
Do someone have a link for instructions?


Reply
Old Sep 13, 2018 | 11:44 PM
  #2  
_NGL's Avatar
Waiting
Tenured Member: 15 Years
 
Joined: Jun 2010
Posts: 198
Likes: 11
From: Toronto


There are four nuts and one bolt that need to be removed to separate the UIM from the LIM.
The other three nuts not circled in the picture are on the same level as the lower nut that I circled.

You will also need to undo the bolts securing the fuel rails as well, obviously.

Best of luck.
Reply
Old Sep 13, 2018 | 11:58 PM
  #3  
DaKeL's Avatar
Thread Starter
Junior Member
Tenured Member 15 Years
 
Joined: Jul 2005
Posts: 34
Likes: 0
From: VA
Do I have to separate this or can I tilt it enough to get to the fuel rail?

Reply
Old Sep 14, 2018 | 05:38 AM
  #4  
mazdaverx713b's Avatar
Have RX-7, will restore
Veteran: Army
Tenured Member: 20 Years
Loved
Community Favorite
iTrader: (91)
 
Joined: Oct 2003
Posts: 22,577
Likes: 1,273
From: Ohio
Leave the throttle body attached to the uim when removing it. There is a hose that runs from the rear iron to the thermowax on the throttle body. This one can be tough to disconnect so take care not to tear it. Be sure to get a new gasket that seals upper and lower intake manifolds as well.
Reply
Old Sep 14, 2018 | 06:30 AM
  #5  
Pete_89T2's Avatar
Rotorhead for life
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Mar 2005
Posts: 2,196
Likes: 1,267
From: Elkton, MD
Don't forget to loosen or remove the nut that fastens the throttle body elbow to the inter cooler bracket. It's not obvious in the diagram (post #1), but if you forget that one, the UIM won't budge.
Reply
Old Sep 14, 2018 | 08:09 PM
  #6  
rx7b13's Avatar
Rotary Enthusiast
Tenured Member 15 Years
 
Joined: Jun 2004
Posts: 950
Likes: 3
From: indiana
Originally Posted by DaKeL
Do I have to separate this or can I tilt it enough to get to the fuel rail?

no need to separate it, itll come off with UIM, just remove the UIM and you'll have access to your fuel rails. Also when you put the fuel rails and UIM nuts and bolts back on, torque them to 15ftlbs.

Last edited by rx7b13; Sep 14, 2018 at 08:13 PM.
Reply
Old Oct 12, 2018 | 03:57 PM
  #7  
DaKeL's Avatar
Thread Starter
Junior Member
Tenured Member 15 Years
 
Joined: Jul 2005
Posts: 34
Likes: 0
From: VA
Originally Posted by Pete_89T2
Don't forget to loosen or remove the nut that fastens the throttle body elbow to the inter cooler bracket. It's not obvious in the diagram (post #1), but if you forget that one, the UIM won't budge.
are you talking about this?

bc there was no nut on it.

i took out the 3 nuts, 1 short bolt and 1 long one from the upper manifold. It's not moving at all.
Reply
Old Oct 12, 2018 | 05:00 PM
  #8  
pzr2's Avatar
Senior Member
Tenured Member: 10 Years
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Mar 2014
Posts: 462
Likes: 76
From: Arizona
My memory is hazy on S4 T2, but I think theres a second nut/stud holding the elbow to the bracket. You also may or may not have the OMP rod holding the throttle body to the engine. In total, you should have 5 fasteners holding the UIM to the LIM flange - normally its 4 nuts and one long bolt, but I think you have a bolt replacing one of the nuts. That's about all I can think of that causes the UIM to not budge. You may also have a bent intercooler bracket that's pressing against the throttle body. Mine did, so I had to push the lift hook over to take the pressure off the throttle body.
Reply
Old Oct 13, 2018 | 07:00 AM
  #9  
Pete_89T2's Avatar
Rotorhead for life
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Mar 2005
Posts: 2,196
Likes: 1,267
From: Elkton, MD
Originally Posted by DaKeL
are you talking about this?

bc there was no nut on it.

i took out the 3 nuts, 1 short bolt and 1 long one from the upper manifold. It's not moving at all.
Yup, that's the one I was referring to.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DaKeL
2nd Gen General Discussion
1
Sep 13, 2018 12:56 PM
wolftickets
1st Generation Specific (1979-1985)
1
Oct 18, 2007 12:25 PM
SAH-RX7
2nd Generation Specific (1986-1992)
1
Apr 13, 2006 11:38 AM
eriksseven
2nd Generation Specific (1986-1992)
13
Mar 23, 2006 11:05 PM
skim003
2nd Generation Specific (1986-1992)
3
Sep 30, 2002 03:31 PM




All times are GMT -5. The time now is 12:03 AM.