Harry
der Rudolf meint diesen Thread. Nichts anderes.
Jemand aus dem Forum hatte mir mal vor Jahren die ersten Prototypen gemacht von den Alu cups
hier Bilder
http://www.bimmerboard.com/members/shogun/BKV_Dark1
http://www.bimmerboard.com/members/shogun/BKV_Dark2
http://www.bimmerboard.com/members/shogun/BKV_Dark4
Aber wenn Dir einer Deiner Kollegen aus USA aus der E31 Truppe einen alten besorgt als Core, dann wuerd ich mir fast noch einen von A1 Cardone kaufen, komplett ueberholt, denn unsere Reparatur ist ja nur Dichtungswerk, aber wenn die Schaefte Rillen haben, hilft es nichts.
Such mal nach
A1 Cardone 52-7500 A1 Cardone Brake Booster
bei partsgeek sind sie am billigsten
Discount Auto Parts and Accessories - PartsGeek
Your Price: $164.04
Core Price : $45.00
Part Number: 05003618
Notes: Hydraulic Power Brake Booster w/o Master Cylinder --
dann kommen natuerlich noch Versanskosten und Zoll +MWST drauf.
Aber die von Cardone sind komplett ueberholt.
CARDONE Online Home Page
http://www.cardone.com/English/Club/...%2050-0001.pdf
Failed Booster Seal Causes Master Cylinder Leaks
Vehicles equipped with power brake booster assemblies.
Chronic master cylinder failure due to fluid leaking past secondary
seal in the master cylinder bore.
A defective master cylinder pushrod seal in the power brake booster allowing vacuum to draw fluid past secondary seal of the master cylinder.
Replace both master cylinder and power brake unit.
Hydro-Boost Flush Procedure
application: Vehicles with power steering pump powered hydroboost brake systems.
problems: Pedal kickback, grabbing brakes, increased pedal effort, hissing noise while applying brakes or increased steering effort.
cause: Possible contamination of hydroboost system due to deteriorating hoses, contaminated fluid or steering unit failure.
solution: It may be possible to restore proper operation by flushing the system using the following procedure. An in-line filter (CARDONE part 20-FLT1 or 20-FLT2) MUST be used during the cleaning cycle. (see Note below) After cleaning if the filter and fluid show obvious signs of hose contamination all hoses must be replaced, and both fluid and the in-line filter changed again.
service procedure:
1. Chock and hold vehicle with hand brake.
2. Check power steering pump fluid level, fill as necessary, do not over fill.
3. Start engine, let idle and allow to reach operating temperature.
4. Raise idle to 2200 rpm and maintain throughout test.
5. Pump brake pedal firmly 25 times.
6. Turn steering wheel lock-to-lock 5 times.
7. Hold at 2200 rpm for 15 seconds then allow engine to return to idle.
8. At idle, turn steering wheel lock-to-lock 3 times without applying brakes. If hard effort or binding is noticed repeat steps 3 thru 6 once. If proper operation is not restored go to step 10. Complete steps 10 thru 12, perform necessary repairs, and repeat from step 1.
9. Test brakes for proper operation before moving vehicle, then drive vehicle 5 to 10 mph. Apply brakes to full stop verifying booster operation and steering action.
10. If brakes do not grab and steering effort is normal, shut off engine, allow system to cool then inspect in-line filter. If hose debris or contamination is found, hoses and fluid should be replaced and test repeated.
11. If grabbing is felt, pedal is hard or pedal stays down, check power steering pump before replacing the booster.
12. If steering effort is effected, power steering pump and steering unit tests must be performed (see Pro Techs PT 20-0003, 20-0004, 20-0005, 20-0008, 20-0012, 20-0016, 20-0018, 52-0001).
note: When installing the filter refer to instructions on the back of the package for proper installation.
http://www.cardone.com/English/Club/...%2052-0002.pdf