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Fuel Rail and Lower Intake Question

  • Thread starter Thread starter Strype
  • Start date Start date May 20, 2009

Strype

Cuthbert catcher
Founding Member
May 11, 1999
61
34
104
Huntsvegas, AL
May 20, 2009
#1
  • May 20, 2009
  • #1
Hey ladies and gents I'm trying to trouble shoot a problem so that I can continue trouble shooting a problem- Make sense?

BBK SSI intake. I am changing the injectors on my car back to stock. I pulled the old ones off and they looked fine and always appeared to hold pressure. I put the stock ones back on and primed the fuel pump.

Gas started pouring out of the 2 middle injectors on the driver side at the lower intake. I pulled rail back off and inspected the injectors. The 2 middle ones were fine but the one closest to the fire wall had a cracked open cap. It wasn't leaking though!

Me -->

I happened to have a brand new cap and o ring set. I fixed the cracked cap and o ring. I made sure they were all seated. It was a 110% pain in the arse to get that fuel rail on but I finally did it. I went to check prime the injectors again and POOF!!!

The 2 middle injectors + the one with the new cap and o rings started leaking

I noticed that the bottoms of the injector caps had nashes in them and it looks like the molding on the lower is causing it, and this is a known problem for the BBK SSI (bought it in 2005 or 2006, just now installing).

My question is this-

Why didn't the old injectors I pulled off of it have a problem??? Am I doing something wrong? It is rediculous how hard you have to bear down on the poor injectors to tighten the fuel rail up, but the stock rail is a pain as well.

Is this a BBK issue or a Strype issue???
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
May 20, 2009
#2
  • May 20, 2009
  • #2
You're having a hell of a time with that thing!

I had my injectors leak like that, too. It looked like they were seated, but they weren't fully seated into the fuel rails. You may have to pull the upper intake back off, but once you get them seated, they should be good to go. I used a hammer handle against the rail and a rubber mallet to smack the hammer handle. It forced the rail onto the injectors and they haven't leaked since.
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
5,232
2,652
223
gainesville
May 20, 2009
#3
  • May 20, 2009
  • #3
StangGT1995 said:
You're having a hell of a time with that thing!

I had my injectors leak like that, too. It looked like they were seated, but they weren't fully seated into the fuel rails. You may have to pull the upper intake back off, but once you get them seated, they should be good to go. I used a hammer handle against the rail and a rubber mallet to smack the hammer handle. It forced the rail onto the injectors and they haven't leaked since.
Click to expand...
I dont think I would have the nards to do that
 

Strype

Cuthbert catcher
Founding Member
May 11, 1999
61
34
104
Huntsvegas, AL
May 20, 2009
#4
  • May 20, 2009
  • #4
I did that the 2nd time... And the upper was off
 

Strype

Cuthbert catcher
Founding Member
May 11, 1999
61
34
104
Huntsvegas, AL
May 20, 2009
#5
  • May 20, 2009
  • #5
Any other ideas? I don't want to file that part of the intake.
 

67coupe

Founding Member
Apr 5, 2002
658
402
93
Huntsville, AL
May 20, 2009
#6
  • May 20, 2009
  • #6
Strype said:
I noticed that the bottoms of the injector caps had nashes in them and it looks like the molding on the lower is causing it, and this is a known problem for the BBK SSI (bought it in 2005 or 2006, just now installing).

My question is this-

Why didn't the old injectors I pulled off of it have a problem??? Am I doing something wrong? It is rediculous how hard you have to bear down on the poor injectors to tighten the fuel rail up, but the stock rail is a pain as well.

Is this a BBK issue or a Strype issue???
Click to expand...

Is it possible to take any pics of the injector holes in the lower intake? Sounds like casting flash or a machining issue.

Did the old (used) injectors have caps? The other side not leaking?
 

Chuckman

GTFO you fat, heavy bastard
15 Year Member
Oct 21, 2005
1,604
1,002
173
st. louis, mo
May 20, 2009
#7
  • May 20, 2009
  • #7
67coupe said:
Is it possible to take any pics of the injector holes in the lower intake? Sounds like casting flash or a machining issue.
Click to expand...

if its taking that much pressure to seat the things, its sounding like the bosses either werent reamed or were reamed to small. i barely have to use any force on my tfs with stock rails. are the rails having this problem too?
 
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