dump valve problem

[leecarmichaeluk]

right guys ,

really needing help here , can not work this out my dump valve will not sound, its a blitz super sound one and i can push the piston in and out and all move free, i have took it to bits and all is fine no broken bits. The D/V is mounted right before the inlet manifold and the screw is turn out so the spring should be soft. It sounded twice for some result and just won't do again all i ever get is waste gate chatter.

Any wisdom would be great because i am running out of ideas and this is very strange!

 

[Guye]

Seems like you've already checked everything out already. It may simply be a case of "made by man so it dies eventually" assuming it's not brand new. Very strange though.

 

[leecarmichaeluk]

it should work the piston moves there is boost , i think its some thing to do with vaccum , it may not be lifting the piston for some reason

 

[Guye]

it should work the piston moves there is boost , i think its some thing to do with vaccum , it may not be lifting the piston for some reason

I assume you have checked your vaccum line then?

 

[DWB]

do u have a boost gauge on the dv vacume pipe? its just my dv worked then i fitted boost gauge in dv vacume and dv didnt work, just chatter. moved boost gauge to intake vacume pipe. dv works again.

 

[TRD]

you may not be producing enough boost to push the piston. Are you sure its for an EP82/EP91?

Have you tried adjusting the nut on the top of the valve?

 

[leecarmichaeluk]

there is a boost gauge fitted mate but its coming off a different feed . i think it is for the starlet as it used to work on the ct9 and it came with the ct9 pipe. i did find that you had to give it some stick on the ct9 to get it to dump some times. i am running a k24 on about 0.8 bar

 

[Dub-Se7en]

my blitz dumps like fuck on a ct9 at pretty much any boost. wierd

 

[leecarmichaeluk]

must be something to do with vaccum , its not opening the piston. would size of pipe make any difference , i mean diameter

 

[Dub-Se7en]

i would say so, yes.

whereabouts on the mani are you taking the feed

this was when it had the bailey on but i used the same pipe/takeoff for the blitz

 

[leecarmichaeluk]

cheers for trying to work this out with me mate
yeah piped up like your one i used a 8mm diameter pipe but is alot shorter than your one.

 

[Dub-Se7en]

have you got another bov you can try? or try the blitz on another car?

 

[leecarmichaeluk]

i only know one guy whos got one but hes hard to get hold of lol

 

[leecarmichaeluk]

if there was a problem with vaccum would i not see strange things happening on my boost gauge ?

 

[leecarmichaeluk]

how ever gets the solution now wins a big prize

 

[leecarmichaeluk]

bump for today

 

[leecarmichaeluk]

sorted i win the prize woo hoo.

 

[Dub-Se7en]

sorted i win the prize woo hoo.

what was it?

 

[miller3]

Yes come on what was it ???

 

[Gee]

I sort of have the same problem...well the pistons moves, so I know the BOV is working, but hardly dumps in the position it is in..same as above. Let us know wat is was