Forge dv worng way or right way.

[terrybullwon]

Found this in a past thread but i couldnt come to the conclusion i needed....

I started to fit the samcos today and its never as easy as you think
I found more things to replace ie heat sheild and this 90deg pipe thats plastic and feeds to the dv.... any how cost £4.00 behere tomoro. The heat plate i made my self


Any how i cant remember which way i had the dv on the new hoses just made it look wierd, When it was on i would get waste gate chater i think it was this way..

[blown_vr6]

The way you have it is correct.
The pressure is acting directly against the piston/diaphram in the same direction.
You can however mount them in the opposite direction - from memory it gives a quieter dump

[Jon441cc]

Where did you get that pic James :mischeif:

[Davidsinclair05]

Can you supply a diagram of how to fit a DV

[Davidsinclair05]

Sorry on a 3B 1991 j plate

[Jon441cc]

http://www.s2forum.com/forum/attachm...1&d=1135599198

[terrybullwon]

sorry jon

[Chris5044]

if u fit it in reverse it makes a unique sound rather like a dolphin squeek ... i like it .. hence why mine makes that sound .. good at night with temp low too

[Jamo]

You can fit it the other way round, there's pro's and cons for either way. My Coupe ran sh*t with it the wrong way round surged too much. The Avant came with it reversed and it's fine although i'm planning on changing it round to see what difference it makes.

Also makes a difference if you have piston or diaphram DV.

There's a big thread on the forum with dump valve reviews and a technical review showing how reversing the DV affects pressure holding. In some case it was better to have it reversed.

http://dv.mistertam.com/

Easiest way to remember which way is correct when looking from front of car, nipple to left is the correct, nipple facing up is wrong.

[Jamo]

Can you supply a diagram of how to fit a DV

http://www.s2-audi.co.uk/tech_articles/dump_valve_replace.htm