What does this do?

carlpenn · 8th June 2011, 19:51

Not a Technical problem, more of a curiosity.

What is the copper coloured tube with a Blue cap for just to teh left of the Accelerator cable?

I noticed by removing the Blue Cap there appears to be a Valve of some sort. Is this used to depressurise the Fuel system or something else? I looked in Haynes but find no reference to it whatsoever.

Sorry for being thick, but if you don't ask, you will never learn

carlpenn · 8th June 2011, 20:33

Quote:

Originally Posted by GadgetBoy

It's for checking the fuel pressure.

You can depressurize the system there but you'll get an eyefull of petrol and is not the correct method. The correct method is to pull the fuel pump fuse and run the engine till it dies.

Cheers

I learned something new

Never even crossed my mind it would be for testing the Fuel pressure

trikey · 8th June 2011, 20:43

Also quite useful for bleeding the air out when you have had the fuel rail in bits

FLYER · 8th June 2011, 21:03

It's called the SCHRAEDER valve.

Kearton · 8th June 2011, 21:14

Quote:

Originally Posted by FLYER

It's called the SCHRAEDER valve.

FYI a Schraeder valve is just the type of valve, not it's purpose. Schraeder valves use rubber seals are what are used for tyres on cars and some bicycles. Bicycles which run higher pressures use a different type of valve with a screw-down metal seal. These are 'Presta' valves.

Regards,
Kearton

8th June 2011, 19:51	#1
carlpenn This is my second home 2000 Wedgey Blue 2.5V6 Beauty Join Date: Jul 2007 Location: Bilston Posts: 4,486 Thanks: 36 Thanked 29 Times in 16 Posts	What does this do? Not a Technical problem, more of a curiosity. What is the copper coloured tube with a Blue cap for just to teh left of the Accelerator cable? I noticed by removing the Blue Cap there appears to be a Valve of some sort. Is this used to depressurise the Fuel system or something else? I looked in Haynes but find no reference to it whatsoever. Sorry for being thick, but if you don't ask, you will never learn __________________ 2.5V6 Auto: Work carried out so far: Crankcase Breather Pipe replaced, O/S CV Joint replaced, Starter Motor Repair Kit Fitted, Front Suspension Overhauled. Last edited by carlpenn; 8th June 2011 at 19:54..

8th June 2011, 20:43	#3
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,766 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Also quite useful for bleeding the air out when you have had the fuel rail in bits

8th June 2011, 21:03	#4
FLYER Banned rover75 cdti AUTO TOURER 160 bhp. Join Date: Jul 2010 Location: Glasgow Posts: 35,346 Thanks: 2,985 Thanked 3,685 Times in 2,463 Posts	It's called the SCHRAEDER valve.