kosman

my 2wd saff has a dump valve that leaks air when started from cold,but you only notice it when cold,i dont know what turbo on it till i get it back,the dump valve is a bailey jobby,nice dump valve,it dumps at low revs though and still quite loud,so is it nackered and if it is what would be the best to replace it with?

mechanic28

iTrader: (5)

i dump valve does vent on idle mate!you sure you just aint getting confused with the noise the icsv is making due to being wide open for cold start?

kosman

i fookin said that to my mate!its him that got the car and rang me and told me! the silly twat! he said it was surging on the revs and i said im sure it does that neway and he said dump valve might be causing it! so big panic hence my post! so it should be ok then?

mechanic28

iTrader: (5)

i would say so lol!

tabetha

DV isn't going to cause surgung anyway, if it's knackered its knackered it will be all the time.
Best way to be sure is to temporarily remove it, and put a old sawn down broom handle section in the dv hole, see if it still does it.
Surging suggests the CO needs looking at.
tabetha

kosman

ive got it booked in for rolling road next week,and expailned,the bloke said he'd check it all

tabetha

Best idea, at least you know it's safe then.
Good luck with it and post results when you get them!!
tabetha