Rebuilding the Forge BPV (as requested)

xr4tic · 06-17-2002, 01:19 AM

Called up Stratmosphere, told them I had an old Forge BPV, and I needed the update kit. They said no problem, they'll send it out right away, FREE of charge (sent via USPS)

The kit contents:

Aluminum piston, two o-rings, and some Mobil 1 grease. You will need to supply the 3mm allen wrench to take it apart (simulated wood grain table also not included)
The BPV's are all the same on the inside, so one kit fits all.

Taking it apart:

Remove the six screws. Careful on the last screw, the housing top is spring loaded, and could send parts flying to dark recesses of your garage.
You can hold it shut with your hand, remove the last screw, then slowly let it open.
Please note the order of assembly.

Piston comparison:

Make sure you clean the housings out good, remove the two o-rings, then install the new ones.

Lubing it up:

There wasn't any instructions, so I applied lube everywhere, the sides of the piston, the sides of the housings, even the ends of the spring. I also put some where the housings meet, as there is no seal there.

Assembly is reverse of disassembly.

This can probably be done in the car, but it's much easier with the BPV out.

Lucas_Gchips · 06-18-2002, 12:30 AM

Andy_FL · 06-18-2002, 01:37 PM

WJM · 06-19-2002, 02:38 PM

xr4tic · 06-19-2002, 03:33 PM

It wouldn't be much of an upgrade if it was worse.

I think binding was a problem with the original piston, maybe this just binds less?

Who knows, I'm thinking of going with a BOV anyways - that is, if I go with an aftermarket EMS.

Toaster29 · 06-21-2002, 11:47 AM

the friction AND sealing surface. Its just asking to leak/get stuck, etc....

06-17-2002, 01:19 AM	#1
xr4tic Senior Member Account #: 12130 Join Date: Nov 2000 Posts: 6,272	Rebuilding the Forge BPV (as requested) Called up Stratmosphere, told them I had an old Forge BPV, and I needed the update kit. They said no problem, they'll send it out right away, FREE of charge (sent via USPS) The kit contents: Aluminum piston, two o-rings, and some Mobil 1 grease. You will need to supply the 3mm allen wrench to take it apart (simulated wood grain table also not included) The BPV's are all the same on the inside, so one kit fits all. Taking it apart: Remove the six screws. Careful on the last screw, the housing top is spring loaded, and could send parts flying to dark recesses of your garage. You can hold it shut with your hand, remove the last screw, then slowly let it open. Please note the order of assembly. Piston comparison: Make sure you clean the housings out good, remove the two o-rings, then install the new ones. Lubing it up: There wasn't any instructions, so I applied lube everywhere, the sides of the piston, the sides of the housings, even the ends of the spring. I also put some where the housings meet, as there is no seal there. Assembly is reverse of disassembly. This can probably be done in the car, but it's much easier with the BPV out. __________________ John Baas Note - NEW NEW email and webpage address 13.236@104.16 250HP at the wheels 2.0 Conversion Page My out-dated-cuz-I'm-too-lazy-website View Registry Metro Detroit Audi Group

06-18-2002, 12:30 AM	#2
Lucas_Gchips Junior Member Account #: 1185 Join Date: Mar 2000 Posts: 1,173	Aluminium Piston!!! That will get jammed when it gets hot. __________________ 1998 B5 A4 2.0L Turbo 371.8KW (498.6HP)@ Wheels http://www.forums.vwvortex.com/zerothread?id=3195005&page=1

06-18-2002, 01:37 PM	#3
Andy_FL AudiWorld Super User Account #: 12690 Join Date: Nov 2000 Posts: 9,790	Thanks! __________________

06-19-2002, 02:38 PM	#4
WJM AudiWorld Super User Account #: 1846 Join Date: Mar 2000 Posts: 13,489	Lucas is right that thing is going to BIND!!! __________________ -WJM For Sale: ANYTHING A4 Related + Brand new RS4 Bumper 2007 RS4 Phantom Black Premium - Clearbra - V1 2001 A4 Santorin Blue 1.8T - Quattro - Tiptronic - Euro Lights + Xenons - Ipod 1999.5 A4 Volcano Black Mica APR Motorsport X - GT3076R - Tappauto 1000cc Tune Custom Air/Water IC - H&R/Bilstein - Stoptech 307whp/270lbft @ 22psi/6k rpm/93 oct ...needs more boost

06-19-2002, 03:33 PM	#5
xr4tic Senior Member Account #: 12130 Join Date: Nov 2000 Posts: 6,272	I would assume they did some research and testing before releasing it.... It wouldn't be much of an upgrade if it was worse. I think binding was a problem with the original piston, maybe this just binds less? Who knows, I'm thinking of going with a BOV anyways - that is, if I go with an aftermarket EMS. __________________ John Baas Note - NEW NEW email and webpage address 13.236@104.16 250HP at the wheels 2.0 Conversion Page My out-dated-cuz-I'm-too-lazy-website View Registry Metro Detroit Audi Group

06-21-2002, 11:47 AM	#6
Toaster29 Member Account #: 12346 Join Date: Nov 2000 Posts: 4,017	Its a pretty shoddy design, IMO.....notice how they use the rubber O-ring for both..... the friction AND sealing surface. Its just asking to leak/get stuck, etc.... __________________ --------------------------------------- -07 Space Gray E92 335i Sport, 6MT, Juicebox stage 2H, 19" CSL reps: 12.9 @ 109, 93 octane -Past- -'03 Tarmac Evo: AMS GT35R 425whp pump, built and tuned by me -'00 A4 1.8TQMSCBX, APR SIII ,13.3 @ 104.1 mph AIM: A418t81

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