Here is the long awaited dump valve fitting guide i promised some of you.
Tken from PFS parts for volvo online!
Atmospheric Dump Valve & Fitting Kit
This fitting kit allows fitment of a Forge FMDV004 atmospheric dump valve (included) to be fitted in place of the standard recirculating item.
Fits:
S70, C70 & V70 to 2000
850
NB: Hose Colour is Black price £149.99
What you get in the kit?
You get a t piece hose section custom fit for the v70R, a dump valve, recirculating blanking plate and silicone vac cum hose.
Ok the fitting of the kit is quite simple and shouldn't take longer than an hour or so to do. You need basic mechanic skills to do it and fitting is at your own risk, its fairly easy but awkward to do.
Tools required: set of spanners and sockets, flat screwdriver, stanley knife,
Step 1.
Remove old hose section from induction hose, by unscrewing the 2 jubilee clips that hold this on.
Keeps the clips we need them now to fit on the new hose.
Fit the new hose and the dump valve as shown in the picture.
There you have it step 1 complete, so so easy!
Step 2.
We now need to remove the old recirc valve which looks like this.
It has a section of vaccum hose from the vaccum tree as in picture 1
Pull this off the top of the recirc valve.
The valve was difficult to see so i'll show you through numerous photos where its located. Note that the picture shows the new blanking plate but you'll be albe to see where it goes.
There it is!
Step 3.
Right like i said befor the old recirc valve is difficult to get to. You may have to remove the heat shield and stuff to get at it. But i have small hands and managed to get away without doing it.
Now i cant remember but its either a 10mm or 8mm bolt that holds this on. Theres 3 of them. so whip it off and dont drop the bolts.
Step 4.
You'll have to clean the surface where the blanking plate fits so get some light sandpaper and rub the old mount where the valve used to sit til you can see its clean and shiny.
Step 5.
Fit the new blanking plate with the 3 bots you removed earlier.
Step 6.
Now you can use the old vac hose which used to sit on the old dump valve to fit onto the top of your new one. Mine was a little old and torn.
Remove the vac tree guard, plastic cover. I removed the old hose which ran back to the vaccum tree which is uder the plastic guard as shown in pic 1.
Step 7.
Cut a piece of hose from your new vaccum hose and make sure it has enough length to fit the vaccum tree. Then fit to top of new valve and to the tree.
Step 8.
Refit all the bits you removed vac tree cover, heat shield etc. You should only have 3 bits left over the old hoses and the old valve.
Step 9.
Fire her up!
Warm up then give it a rev, should dump nicely, mine started to get a bit louder after a couple of hours driving needs to wear in a little i think.
Thats it guys hope it helps. Some people hate the sound but i love it.
Its like marmite then!
link to vid clip showing valve working when idle!
had to get my mum to rev the car so i could do the camera no laughing ok!!
She's useless
Click here to watch V0-dump-valve
Finished product!
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