Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

depressurizing fuel rail

Thread Tools
 
Search this Thread
 
Old 04-12-2004, 07:46 PM
  #1  
flyguy
Instructor
Thread Starter
 
flyguy's Avatar
 
Join Date: Mar 2004
Location: Dallas Baby! Dallas
Posts: 194
Likes: 0
Received 1 Like on 1 Post
Default depressurizing fuel rail

about to take of the intake manifold and hence the fuel rail. What's the best way do remove fuel rail... Clarks garage says to open the end of the fuel rail and catch what's spilled.

I read somewhere that you can simply remove the fuel pump fuse, and wait for the engine to die. might cause a few rounds of detonation?!?

any comments on either method?

thanks,
Ian
Old 04-12-2004, 07:53 PM
  #2  
NZ951
Race Director
 
NZ951's Avatar
 
Join Date: Apr 2003
Location: New Zealand massive
Posts: 13,778
Received 5 Likes on 3 Posts
Default

Take out the DME relay and crank it a couple of times... I think its G5 off the top of my head.
Old 04-12-2004, 08:06 PM
  #3  
Chas
Pro
 
Chas's Avatar
 
Join Date: Sep 2002
Location: Blacksburg, VA & Northern VA
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Default

if you just need to get to hosing underneath the intake manifold, you can leave the fuel rail attached....then once you get the intake loose, just lift up and at an angle, being carefull not to damage the two fuel hoses...this saved me some time...
Old 04-12-2004, 08:30 PM
  #4  
Sam Lin
Addict
Rennlist Member

 
Sam Lin's Avatar
 
Join Date: Jul 2003
Location: Gilbert, AZ, USA
Posts: 3,787
Likes: 0
Received 16 Likes on 12 Posts
Default

As Chas said, no need to remove rail from manifold or disconnect any fuel lines if it's just a manifold removal.

Sam
Old 04-12-2004, 08:41 PM
  #5  
IPSC
Three Wheelin'
 
IPSC's Avatar
 
Join Date: Jul 2002
Location: ID
Posts: 1,480
Likes: 0
Received 1 Like on 1 Post
Default

I pulled the fuse to the fuel pump and let the car run till it died. then started it repeatedly. However when I pulled the old FPR fuel under a great deal of pressure sprayed everywhere. So if you do decided you need the fuel lines off undo the cap on the front and catch the fuel in a rag. After running it dry first of course.

IPSC
Old 04-14-2004, 05:01 PM
  #6  
Charlotte944
Three Wheelin'
 
Charlotte944's Avatar
 
Join Date: Jan 2003
Location: Richmond Virginia
Posts: 1,480
Likes: 0
Received 3 Likes on 3 Posts
Default

The best thing to do is put a couple of shop rags under the front end of the fuel rail and slowly "crack" open the end cap until you can see/smell gas.

Have some eye protection on, and make sure there are no open flames, lit cigaretts, or other ignition sources around.
Old 04-14-2004, 07:22 PM
  #7  
Joe Jackson
Pro
 
Joe Jackson's Avatar
 
Join Date: May 2003
Location: Wilmington, DE
Posts: 601
Likes: 0
Received 1 Like on 1 Post
Default

I agree with Clifton. You can only get so much pressure out of the fuel rail by starting the engine with the fuel pump fuse (#38) removed or the DME relay. I still usually see about 15 psi showing on my FP gauge after depressurizing. Rags wrapped around the first fitting you remove will take care of that though.



Quick Reply: depressurizing fuel rail



All times are GMT -3. The time now is 03:04 AM.