Dump valve woes
Turbo Mini Forums

there you go dude, as we've all said above block the servo take-off. your dump valve wont work on any of the connections on the carb so it needs a feed from the inlet manifold, you can see on mine there's 2 red hoses going onto the inlet by the throttle cable, all it is is 2 nipples drilled and welded in place. the other smaller red pipe running from just infront of the dashpot is the vac advance pipe which is the wrong side of the carb butterfly to use for a dump valve trigger.

Sweet! the other take off that youve blocked with the 13mm? bolt is where ive tried using and is also where my boost guage runs from. The vaccum advance on my dizzy is left open with no bung on it and the takeoff infront of the dashpot is blocked off. Should i connect this or leave it as it is till i get the car set up properly?

Edited by slammed 66 on 14th Jan, 2006.

1986 renault 5 gt turbo
1989 Renault extra
1991 R32 GTR
1998 Mini MPI
1999 Nissan Elgrand

i'd say the best thing to do is connect up the vac advance on the dizzy to the nipple just infront of the dashpot (where the thin red pipe on mine goes) it'll make the car run a bit better if you adjust your timing accordingly (detailed in the metro haynes)

the 2 connections on mine that are blocked off with bolts should be looped together, it leans off the mixture at part throttle but as i'm not bothered with economy i just blocked em both off.

also on the left hand side of the carb is another connection just under the one you can see blocked off, this also needs to be blocked off else your car will never see boost, it'll just try and stall from lack of fuel.

Sorry i meant the one blocked with a 13mm just infrint and to the left of your vac advance line and directly behind brake servo takeoff

1986 renault 5 gt turbo
1989 Renault extra
1991 R32 GTR
1998 Mini MPI
1999 Nissan Elgrand

If you get stuck i go to hull uni from lincoln every thursday so could possibly meet up on my way home?

I can get brass fitting so the boost gauge pipe will fit in here,also fits oil pressure gauge to

Metro turbo weekend driver,Mini turbo in the making again!