I appreciate the former post:
Just did another O-ring replacement for a friend

One thing I found, there are a total of SIX O-rings that can be replaced. I may add arrows to the images later. On mine, one of the O-rings was missing, the smaller diameter one that goes around the rod to the lever. This may explain the hideous screeching noise I was getting. Might have been loose piece of O-ring rubber vibrating.

I took the whole disassembled Regulator Valve to local O-ring specialty shop in town and they found me the right sizes.

I have some new pictures:
http://bryanborough.com/750iL/LADRegulatorValve/index.htm

QUESTION 1:
The two screw-ins with two holes - the bigger of the two tightens to a stop, but the small one I can continue tightening and compressing the spring - when do I know when to stop?

QUESTION 2:
Of the THREE little balls, there are THREE different sizes. I hope I put them back in right. According to the picture in link above, it goes from left to right the Biggest to the Smallest. Was that right?

QUESTION 3:
How do I know how to position the lever on the rod?

QUESTION 4:
Should I be cleaning the rust off and re-painting the housing?

QUESTION 5:
After reassembling Hex screw, how free-spinning should the lever-and-rod be? It seems to tighten up quite a bit.

Bryan

1988 BMW 750iL (E32, 10/87)

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