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Tech Area => General Buick Tech => Topic started by: TRICKSIXPA on March 29 2012, 06:05:24 PM

Title: Leak from the fuel rail?
Post by: TRICKSIXPA on March 29 2012, 06:05:24 PM

So got done putting my engine back together on my WE4 hook up the battery today to set the TPS, so I turn the key to the accessory position. Smell fuel and the #2 injector is wet. Looks like it's leaking from atop it. I put 42lb injectors in cause the stock injectors were falling apart when I removed them. The 42 are used but the Orings looked pretty good. Used some vasoline to seat the injectors in the cup. Before I rip the rail off what should I be looking for so I can get this fixed. Thanks

Title: Re: Leak from the fuel rail?
Post by: ULYCYC on March 29 2012, 06:17:40 PM

Before we make a 10 page guessing game just pull out the injector and check the O ring. I would not install used injectors without a new O ring set on all..

Title: Re: Leak from the fuel rail?
Post by: Steve Wood on March 29 2012, 06:17:52 PM

bad 0 ring

Title: Re: Leak from the fuel rail?
Post by: SuperSix on March 29 2012, 07:24:16 PM

Did you use any lube putting the rail on?

Title: Re: Leak from the fuel rail?
Post by: gbsean on March 29 2012, 08:37:53 PM

what happened to my post about o-rings

Title: Re: Leak from the fuel rail?
Post by: TRICKSIXPA on March 30 2012, 08:45:20 AM

Would the Orings be the same size as the stock injectors? I know the OD would be what about ID.
Yes the O rings were hit with a little bit of Vasoline when I installed them. I'll let you guys know what I find this weekend when I pull them off. 

Title: Re: Leak from the fuel rail?
Post by: SuperSix on March 30 2012, 08:47:53 AM

Quote from: TRICKSIXPA on March 30 2012, 08:45:20 AM

Would the Orings be the same size as the stock injectors? I know the OD would be what about ID.
Yes the O rings were hit with a little bit of Vasoline when I installed them. I'll let you guys know what I find this weekend when I pull them off.

Yes - they are the same as stock.

Let us know what happens!

Title: Re: Leak from the fuel rail?
Post by: TRICKSIXPA on April 01 2012, 09:53:38 PM

Well I pulled my fuel rail today and saw a chunk missing from the O ring. Apparrently this happened while the O ring was in the cup. The piece of rubber that was shaved off fell out. I ordered a Oring kit from GM it was only $15.00 comes with all the Orings for the Injectors and the FP regulator.

Title: Re: Leak from the fuel rail?
Post by: $1987 GN$ on April 01 2012, 10:34:13 PM

The Ford dealers have them in stock and about 60 cents each iirc. If you have to wait long.


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