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Installing fuel pressure gauge on the fuel rail?
Posted: August 25th, 2014, 2:05 pm
by Defcon92
I'm looking at installing a small fuel pressure gage onto my fuel rail of my 1992 cherokee however I'm unsure of the size of the nipple/shredder valve. I believe its a flared type fitting? Can anyone use there magical googling power and find the correct 90* elbow I'd need?
Would it be a female 1/8" flare fitting to a female 1/8" npt?
I'll be using this marshal 0-100 psi gauge which has a 1/8" npt fitting.
http://www.ebay.com/itm/Engine-Works-0- ... 4f&vxp=mtr
Re: Installing fuel pressure gauge on the fuel rail?
Posted: August 25th, 2014, 10:24 pm
by SilverXJ
Do a search on here. I know there is at least one person that has done it. They used an adapter of some sort and IIRC removed the schrader valve.
Re: Installing fuel pressure gauge on the fuel rail?
Posted: August 26th, 2014, 6:17 pm
by shawnxj
i did that and i have to tighten it up regularly. it vibrates loose about every 500 miles. going to weld a female fitting on the end of the fuel rail this time and run it that way
Re: Installing fuel pressure gauge on the fuel rail?
Posted: September 5th, 2014, 10:28 pm
by RenoF250
This fitting takes the Schraeder to a gauge:
http://www.summitracing.com/parts/cei-107133/overview/
This gauge is cheaper and pretty nice:
http://www.summitracing.com/parts/sum-800199
The fitting does warn not to leave a oil filled gauge on or the vibrations will eventually crack the fuel rail. I just put mine on for diagnostics and then took it off. Also, the Schraeder side leaked until I used a few turns of the thick yellow teflon tape on it.
Re: Installing fuel pressure gauge on the fuel rail?
Posted: September 7th, 2014, 7:52 am
by mark2215
I'm not sure if your fuel line connects to the fuel rail with the same connect or as me but this is what I used to isntall my fuel pressure sending unit.
http://www.summitracing.com/parts/NEX-16190
Re: Installing fuel pressure gauge on the fuel rail?
Posted: September 7th, 2014, 8:41 am
by jeepxj3
That's a really nice piece, expensive, but nice.