Dump Valve help - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 13:55

Fitted my dump valve.

Now my car keeps cutting out

Done a search on mig cant seem to find a good enough answer, hard i know when they cant see the car!

Basically i havent blanked off the old recirc vlave as was advised not to. Its safer apparently. Fitted new DV, and now after boosting when i change gear, or decelerate to low revs. Engine cuts out

Also seems jerky and "boggy" when changing up gears too.

Any ideas people?

p4uls corsa

Member

Registered: 2nd May 05
Location: BRADFORD
User status: Offline

25th Jul 05 at 14:00

maybe a hole/rip in one of ur hoses

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

25th Jul 05 at 14:03

i said i thought it was leaking boost through a broken hose...

dunno really dude.. ?
what did matt say ?

Edd

Member

Registered: 8th Nov 04
Location: Glasgow
User status: Offline

25th Jul 05 at 14:04

quote:
Originally posted by p4uls corsa
maybe a hole/rip in one of ur hoses

good shout

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 14:05

There seems to be no visible holes!

Alltho my oil breather one seems to have a split, that surely wouldnt cause it to cut out tho

vibrio

Banned

Registered: 28th Feb 01
Location: POAH
User status: Offline

25th Jul 05 at 14:07

quote:
Originally posted by Jambo
Fitted my dump valve.

Now my car keeps cutting out

Done a search on mig cant seem to find a good enough answer, hard i know when they cant see the car!

Basically i havent blanked off the old recirc vlave as was advised not to. Its safer apparently. Fitted new DV, and now after boosting when i change gear, or decelerate to low revs. Engine cuts out

Also seems jerky and "boggy" when changing up gears too.

Any ideas people?

I suspect you bought a DV 24 not a DV 26 which you require cause you have an AFM.

or you have a huge leak - if the bung fitted in place.

[Edited on 25-07-2005 by vibrio]

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 14:09

Is it marked anywhere on therE? i mean should it state model number?

loo_goblin

Member

Registered: 14th Jul 04
Location: Horsham, West Sussex
User status: Offline

25th Jul 05 at 14:58

take it to the magical mattb

Stu

Member

Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
User status: Offline

25th Jul 05 at 14:59

As Vibs said it should be a twin piston if you are using the AFM, looks like your using a single piston designed for cars running no AFM or a MAP sensor.

www.forgemotorsport.co.uk

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:05

ok looked on baileys site, looks like mine is a twin piston

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:08

go over the whole fitment again and double check all clips are tight. Where did you get the DV? I have one here you can try, can post it tonight if you want....

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:13

shall double check, how do i tell if its a twin or single piston then?

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:15

i dont know mate but i have a twin piston sitting here in front of me, got a pic of the dump valve? Can send me it via mobile or stick it on here ill see if its same as mine.

SteveW

Member

Registered: 15th Jul 02
Location: Up in the clouds
User status: Offline

25th Jul 05 at 15:19

jambo, your "should" be the same as mine mate...

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:20

did he buy it new or second hand??

Stu

Member

Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
User status: Offline

25th Jul 05 at 15:21

Basically the twin piston has two diaphragms inside. One closes when the valve dumps to keep a measured amount of air in the inlet tract, its this lack of vacuum that I think is making your car stall.

On the outside it will be pretty hard to tell the difference!

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:28

got it 2nd hand,

If i take it off would i see anything in the inside to give its identity away?

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:33

Any idea what car it came off? It could even be a faulty one that you have been sold.

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:36

came off a calibra

vibrio

Banned

Registered: 28th Feb 01
Location: POAH
User status: Offline

25th Jul 05 at 15:39

twin piston bailey has a L shaped attachment on top.

if the DV was jammed open you'd not idle. see if the valve inside moves up or down.

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:40

tis wierd, might just be a faulty dv or a loose hose. When i first fitted my bailey one i didnt tighten the intercooler pipe back up properly and had similar problems.

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:41

quote:
Originally posted by vibrio
twin piston bailey has a L shaped attachment on top.

if the DV was jammed open you'd not idle. see if the valve inside moves up or down.

Wrong, I have a twin piston and it has a straight attatchment on top.

edited to say, the newer twin piston ones have the L shaped attatchment, older ones are straight.

[Edited on 25-07-2005 by StuartA3Turbo]

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:45

this has a straight attachment at the top too.

Mig said if theres a rod, its a twin pistom mine had a rod so im guessing it is fine. im thinking my vacuum line from top of the vlave is possibly getting pinched by the bonnet due to angle when i closes

I guess this would cause it?

StuartVRS

Member

Registered: 9th Feb 03
Location: Bromley Common, Greater London
User status: Offline

25th Jul 05 at 15:46

yup, as i said in u2u, would deffo cause it

just try it on idle with bonnet up mate and see how you get on.

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

25th Jul 05 at 15:48

Off to try it now

Cheers ppl

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