Fuel Pressure problem
Turbo Mini Forums

Typically after taking my pics this morning, i went to put the car in the garage and it wouldnt start

Tonight i discovered i had a fuel pressure of over 15psi

I took the regulator apart, and the diaphram looked ok (no obvious splits), but a little bit aged (stiffer than it should be)

I put it back together but couldnt get below 9psi, and when i tried adjusting it it made no difference, eventually it shot up off the scale again

I presume the diaphram is knackered, can anyone confirm this is likely?

Cheers

Nic

Hi,
It's usually a restriction in the return pipe that causes this. Have you tried it using a separate bit of pipe into a can for the return.
I would be surprised it's the diaphram as the spring controlling it is stronger.
Cheers,
Gavin :)

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yep that could well be trye nic , a good give away is ,when you unscrew the adjuster on top ,take it right out and see if any fuel comes out ,if it does thats the diaphragm leaking big boy !

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

i was going to say have you kinked (ooo err!!) the return somehow?

if nothings up with the reg (i'm sure someone can post you a spare to try) then thats the only thing i can think that would do it. its a simple system.

there was fuel coming out of the pressure pipe from the plenum....

hmmmm its possible the return pipe could be kinked, ill check in the morning. I dont think it is though

Thanks for the offer iain, but i want it working for this weekend so ill go and buy one tomorrow, groan

Cheers

blockage in return nic as the gents states

are you into kinked!!!!

iain said:- i was going to say have you kinked (ooo err!!)

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Yep I agree with Wil.

yeah i had a quick check of the return this morning and couldnt spot any kinky business

ill have a quick blow of it and see if that makes anything come out of the end!?!?!

if not ive picked up a new reg from min-its to try

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

at college in the week the teacher was talking about momentum, and using the balls that you swing and when they collide the end one moves off

"I call them adult toys" he said.

I instantly errupted with laughter and continued to snigger for the next 5 mins

hehe, i would have too though