Fuel Pulsation Damper Question

Started by L18M, May 03, 2014, 09:46:48 PM

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L18M

May 03, 2014, 09:46:48 PM
I\'m upgrading my secondary fuel rail to a KG rail as i\'m getting fuel leak from around the injector. Having read up on some articles it might be a faulty pulsation damper (on the primary rail) causing the fuel leak.

Anyone else had problems with a faulty pulsation damper on their T2?
Where to source a new one?

Also on FC3S PRO they say can remove the pulsation damper by using a S4 T2 primary rail and a banjo bolt. Anyone done this? good or bad?

How can you test if the pulsation damper is faulty or not?

Thanks :)
2 doritos on a stick woohoo :rollin

clive

#1
May 04, 2014, 08:22:36 AM
If you have a fuel pressure regulator , which I am presuming you have, do away with the damper anyway so it can\'t interfere with fuel feed
hope this helps
All the best Clive

L18M

#2
May 04, 2014, 12:01:49 PM
Thanks clive, Yes running SARD FPR :Thumbs-up
2 doritos on a stick woohoo :rollin

Prof

#3
May 07, 2014, 07:44:58 AM
^^^ What clive says ^^^
 
I used an AN fitting instead of the pulsation damper - direct feed into your primary rail through a sweeping 90 degree bend - much better for fuel delivery !
 
Stock fuel rails are theoretically capable of about 500bhp, even using serial fuel system, but many people switch to a parallel fuel delivery system before then, the primaries and secondary\'s affect each other less.
 
I ran a modified secondary (remove standard FPR and replaced with welded AN fitting) with stock primary and used a SARD FPR, worked a treat.
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

L18M

#4
May 07, 2014, 10:05:30 PM
Is your primary rail off an S4 Prof? as from what i\'ve read the S5 ones are welded on?
I\'ve not taken it apart yet to investigate.

Have a KG secondary rail on its way over :)
2 doritos on a stick woohoo :rollin

Prof

#5
May 08, 2014, 07:08:24 AM
My secondary rail was a modified S4 rail, my primary is a standard S5 rail - both banjo fittings can be removed and an AN fitting used instead.
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

Prof

#6
May 08, 2014, 07:15:02 AM
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

L18M

#7
May 08, 2014, 10:30:31 PM
Top job Prof! Appreciate the pics :)
2 doritos on a stick woohoo :rollin
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