XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

Vacuum pipe to TB Removal

Thread Tools
 
Search this Thread
 
  #1  
Old 12-01-2017 | 03:01 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default Vacuum pipe to TB Removal

Dear Forum,
How do I remove the black plastic vacuum pipe coming in from the right of this picture and attaching to the TB, please?
 
Attached Thumbnails Vacuum pipe to TB Removal-vacuum-pipe-throttle-body.jpg  
  #2  
Old 12-01-2017 | 08:15 AM
mhamilton's Avatar
Veteran Member
Joined: Feb 2011
Posts: 1,137
Likes: 445
From: Raleigh, North Carolina
Default

You squeeze the collar and pull the tube off. Same mechanism as the PCV hoses (removed already in your picture).
 
The following users liked this post:
EsRay (12-01-2017)
  #3  
Old 12-01-2017 | 08:33 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Thank you. I've already tried that - I must need to work on the strength of my squeeze!
Just to be sure, do I squeeze East to West (so to speak) or North/South? There are two sort of 'shoulders' in the collar at East/West?
 
  #4  
Old 12-01-2017 | 12:39 PM
Dan R's Avatar
Senior Member
Joined: Jun 2009
Posts: 754
Likes: 71
From: San Antonio, TX
Default

There is a specific tool for this Norma connector.
You can also make your own out of thickish wire. Check the Jag boards.
 
The following users liked this post:
EsRay (12-01-2017)
  #5  
Old 12-01-2017 | 12:58 PM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Dan R, Thank you for your reply. Please excuse my being so slow, but what are the Jag Boards, please?
 
  #6  
Old 12-01-2017 | 05:37 PM
Box's Avatar
Box
Veteran Member
Joined: May 2015
Posts: 1,099
Likes: 643
From: Up, Planet Earth
Default

Originally Posted by EsRay
Dan R, Thank you for your reply. Please excuse my being so slow, but what are the Jag Boards, please?
The connector you are working with is a Norma V2 quickconnect. You squeeze the connector where you find little ribs on the outer ring. (in your pic, top and bottom)
 
  #7  
Old 12-02-2017 | 07:49 AM
NDW's Avatar
NDW
Senior Member
Joined: Jul 2012
Posts: 289
Likes: 77
From: Mineola, TX
Default

Here is a pic of the connector so you can see what the disconnected piece looks like.
 
Attached Thumbnails Vacuum pipe to TB Removal-normaquic-v2.jpg  
The following users liked this post:
EsRay (12-02-2017)
  #8  
Old 12-02-2017 | 10:54 AM
abonano's Avatar
Joined: Mar 2012
Posts: 4,753
Likes: 1,429
From: Hazlet Township, NJ
Default

Originally Posted by EsRay
Thank you. I've already tried that - I must need to work on the strength of my squeeze!
Just to be sure, do I squeeze East to West (so to speak) or North/South? There are two sort of 'shoulders' in the collar at East/West?
Give it a slight twist as you depress the release tabs.
 
The following users liked this post:
EsRay (12-02-2017)
  #9  
Old 12-03-2017 | 02:42 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Originally Posted by abonano
Give it a slight twist as you depress the release tabs.
Thanks all you guys that offered advice on this one - You were all correct of course - It just need the right squeeze and that little bit more of a wrench than you like to give plastic fittings on a 12 year old car!

Now, how do I get the fuel line off, please? I have already figured out how to release the metal clip that (sort of) secures it to the valve - thingy on the fuel rail but pull as hard as I might, I do not appear to be able to pull the plastic/rubber hose off of this fitting?

Reards,

Ray
 
Attached Thumbnails Vacuum pipe to TB Removal-fule-line-connection.jpg  

Last edited by EsRay; 12-03-2017 at 02:55 AM. Reason: Add photo
  #10  
Old 12-03-2017 | 06:32 AM
Box's Avatar
Box
Veteran Member
Joined: May 2015
Posts: 1,099
Likes: 643
From: Up, Planet Earth
Default

Originally Posted by EsRay
Thanks all you guys that offered advice on this one - You were all correct of course - It just need the right squeeze and that little bit more of a wrench than you like to give plastic fittings on a 12 year old car!

Now, how do I get the fuel line off, please? I have already figured out how to release the metal clip that (sort of) secures it to the valve - thingy on the fuel rail but pull as hard as I might, I do not appear to be able to pull the plastic/rubber hose off of this fitting?

Reards,

Ray
You will need a release tool like this;

Amazon Amazon
 
The following users liked this post:
EsRay (12-03-2017)
  #11  
Old 12-03-2017 | 08:06 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Originally Posted by Box
You will need a release tool like this;

https://www.amazon.com/Napa-3530-6pc.../dp/B00JEPBPD8
David, I'm trapped with my RH Cam Cover released and ready to come out but firstly this fuel line and secondly, the Oil Filler tube are preventing me. I have to solve one of them? Either the line is disconnected or (hopefully), I can withdraw the Cam Cover from under the fuel line, providing I can remove the Oil Filler tube? It is going to take forever (and much expense) to get one of these tools to Dubai?
Do I need to hacksaw the metal pin preventing me from unscrewing the Oil Filler cap, a replacement for which I can obtain much more quickly?
It has taken me days to get both Cam Covers off in situ - It really is a nightmare job!
What would you do, please?
 
  #12  
Old 12-04-2017 | 12:50 AM
abonano's Avatar
Joined: Mar 2012
Posts: 4,753
Likes: 1,429
From: Hazlet Township, NJ
Default

Don't try and twist the oil filler tube off. You'll break it. Impossible to get the cam cover off with that tube in place.

As an alternative you can cut a plastic soda cap top off, cut the extra side of the side off. The design of this connector is that there is a spring you need to push into the collar to spread the spring to loosen the connection.

Looked at the pic and your connector looks like there's some crust in it. Be sure to flush that crud out before attempting to seperate that connector and of course depressirize the fuel pressure.

Look up my old posts. I had to devise a similar tool for my A.C. line on my 00 S Type as the fitting size was almost 1" in diameter and no tool worked. My soda cap trick worked.
 
The following users liked this post:
EsRay (12-04-2017)
  #13  
Old 12-04-2017 | 02:01 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Hello (again) Abonano...Thank you for this and for your previous help. I have checked out your old posts.

I do think I can slide the cam cover out from under the fuel line - Providing I find a way to get the oil-filler cap 'tube' off?

I assume I depressurize by removing the fuel filler cap? Anything else I need to do, please?

The pipe I will need to get (either a purchased or home-made tool) on is behind the fitting shown in my photo. It connects the fitting to the actual fuel rail and there is only about half an inch of pipe available? I have already tried to use part of the barrel of a plastic pen (slit down its side) to free this connection, but without success; despite it being thin walled, I cannot even get my device into the connector, hampered as I am by the shortness of the pipe available for manoeuvre?

Consequently, I have ordered one of these sets from our local version of Amazon:

https://uae.souq.com/ae-en/jtc1827-a...et-23303881/I/

However, I'm not convinced that I will be able to fit the tool in the gap between the fuel rail and the connector on the available length of pipe?
 

Last edited by EsRay; 12-04-2017 at 02:54 AM.
  #14  
Old 12-05-2017 | 09:03 PM
clubairth1's Avatar
Veteran Member
Joined: May 2009
Posts: 9,803
Likes: 2,548
From: home
Default

No. To remove the fuel pressure you bleed it down at the test port (Schrader Valve).
Should be on the fuel rail at the back of the engine.
.
.
.
 
The following users liked this post:
EsRay (12-05-2017)
  #15  
Old 12-06-2017 | 03:59 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default Schrader Valve

Originally Posted by clubairth1
No. To remove the fuel pressure you bleed it down at the test port (Schrader Valve).
Should be on the fuel rail at the back of the engine.
clubairth1 - Are these the valves to which you refer, please? If so, which one do I open?

Regards,
Ray
 
Attached Thumbnails Vacuum pipe to TB Removal-schrader-valves.jpg  
  #16  
Old 12-06-2017 | 06:49 AM
abonano's Avatar
Joined: Mar 2012
Posts: 4,753
Likes: 1,429
From: Hazlet Township, NJ
Default

Originally Posted by EsRay
clubairth1 - Are these the valves to which you refer, please? If so, which one do I open?

Regards,
Ray
Oh no... don't open either of those. That's for your air conditioning freon. If you cannot find the port an alternate would be to pull the fuel pump fuse and crank the engine until it dies.
 
The following users liked this post:
EsRay (12-06-2017)
  #17  
Old 12-06-2017 | 07:36 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default Fuel Line Schrader Valve

Originally Posted by abonano
Oh no... don't open either of those. That's for your air conditioning freon. If you cannot find the port an alternate would be to pull the fuel pump fuse and crank the engine until it dies.
Thanks Abonano,
Unfortunately I have my battery disconnected so I will have to try to find a picture or diagram showing the location of this 'Test Port'.
 
  #18  
Old 12-06-2017 | 08:12 AM
mhamilton's Avatar
Veteran Member
Joined: Feb 2011
Posts: 1,137
Likes: 445
From: Raleigh, North Carolina
Default

Originally Posted by EsRay
Thanks Abonano,
Unfortunately I have my battery disconnected so I will have to try to find a picture or diagram showing the location of this 'Test Port'.
The later models do not have a test port on the fuel rail. My 06 does not. You will either have to run the engine with the fuse out as abonano indicated, or very slowly and carefully release that fuel line with a rag around it and be ready for 1/2 cup of gas to spray out out.

Side note: the check valve in my fuel pump must be dead because I had no residual fuel pressure the last time I unhooked my rail.
 
The following users liked this post:
EsRay (12-06-2017)
  #19  
Old 12-06-2017 | 08:46 AM
EsRay's Avatar
Thread Starter
|
Veteran Member
Joined: Oct 2017
Posts: 1,238
Likes: 195
From: Dubai
Default

Originally Posted by mhamilton
The later models do not have a test port on the fuel rail. My 06 does not. You will either have to run the engine with the fuse out as abonano indicated, or very slowly and carefully release that fuel line with a rag around it and be ready for 1/2 cup of gas to spray out out.

Side note: the check valve in my fuel pump must be dead because I had no residual fuel pressure the last time I unhooked my rail.
Michael, when I eventually receive the necessary tool for the job, I genuinely look forward to fuel spraying out of that fitting, indicating that I have been successful at removing it!
 
  #20  
Old 12-06-2017 | 10:28 AM
clubairth1's Avatar
Veteran Member
Joined: May 2009
Posts: 9,803
Likes: 2,548
From: home
Default

Yes those are AC lines and leave them alone.

Well I had a 2005 4.2L STR and will tell you for a fact that they DO have a Schrader test port.

Please read this thread when I had a bad fuel pressure sensor on my 2005. It has some pictures and look at the fuel rails for item #6. That's the test port and on the 4.2L V-8 it's on the rear of the passenger side of the engine. Not real easy to get to but my STR was a bunch more complicated than your NA 4.2L.
https://www.jaguarforums.com/forum/s...s-power-77995/

But you are correct that the AC and the fuel test port are BOTH Schrader type valves. Sorry for the confusion!
.
.
.
 



All times are GMT -5. The time now is 09:23 AM.