Fuel Pressure Gauge

[Dave Meredith]

I notice there's something that looks like a schrader valve
on the fuel rail
Is it possible to permanently fit a fuel pressure gauge onto this?
I've had a quick search on google but nothing is coming up
Had a wedge before the Chim and I was able to fit a fuel gauge into the
fuel line. If I had any problems it was easy to see if the fuel
pressure was the cause.
Any ideas?
Dave

[phazed]

You can put one in the fuel circuit for testing and remove.#

My old 4.6 came with one fitted under the bonnet in the fuel circuit but I removed it and just fitted it for setting up.

[BoostedChim]

You'll probably need a glycerin filled gauge to protect the gauage from vibration and spikes. Alternatively you can removed the schrader valve and using fittings straight into the fuel rail. I'm pretty sure it's a 1/8 NPT fitting.

I've just ordered one of these so I can log the pressure in the ECU. Pressure Transducer

[Dave Meredith]

Thanks chaps

I think I'll remove the Schrader valve and fit a gauge - they look pretty cheap on e-bay


If the car has been stood for a while do I need to worry about releasing the fuel
pressure? If I need to release the pressure do I just remove the king lead and turn it over a few times?

Dave

[blitzracing]

Dont crank it- it will pressurise the line, just wrap a cloth around the valve as you remove the core to catch the fuel. Putting an electronic sensor in is the best idea- after all do you want a gauge that gets heated and vibrated and could fracture with 35 psi of fuel trying to get out on a hot engine?

[Dave Meredith]

Hmmm - it does get pretty hot under there. I think I'll
go for the safe option - the transducer
Thanks all
Dave