Maples71240Z

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Every one did well here and their descriptions were accurate except, if you are over 40 be sure to make a appointment with your chiropractor first before starting this quest. You will need it when finished.

Does your 71 still have the stock master cylinder with the large reservoir in the front? If it does I have a pair of nice stock lines that go from the master cylinder to the distribution block. The flare nuts on the lines are perfect as are the lines.

As a last resort if all else fails blow compressed air through the lines. Then follow that with a brake fluid flush. Since the hoses are on it, plug the end of the a rear hose with a 3/16" inverted flare plug so all the fluid is directed out other side, then swap the sides with the plug. Catch the fluid in a bottle so you can see it when it becomes clear. The flare thread of our cars is 10mm X 1.0 but a plug in that size is impossible to find. The 3/16" is slightly smaller and screws in easy by hand and will seal the hose. If the old hoses are going to be replaced then just clamp them with vice grips.

Did you try to get the nut loose on the bottom side of the valve? If it will come loose you can remove the plunger and clean it out with brake clean and just put it back together. If it is full of crud it will end up in the wheel cylinders if that is the point where you are bleeding it out of.

http://toronto.en.craigslist.ca/tor/cto/912014128.html

If your talking about the one in the back it not a proportioning valve, its a residual pressure check valve. Its purpose to to maintain about 10 pounds of pressure to overcome the springs on the shoes and keep the shoes positioned at the point of drum contact. To flush it will take 10 or so pounds to open it. The distribution valve under the M/C has springs in both sides under the caps that fill up with crud also.

Looking at my numbers here I came up with your correct, I do have the 46313 as the first numbers for the 3-Way-Tee. I just posted the wrong #'s when I started the thread. I could read the complete set of numbers for the rest of the brake line parts but not that tee. I kept running different combinations of numbers at www.nissanparts.cc but could not get a listing for that Tee.

Thanks for the quick reply Ron, Looks like that is it $11.14 is a bunch cheaper that eBays reddat's $35 plus shipping.

Does any one have the number of the brake line tee in the back of the S30's? I can read most of the number off the fiche CD but not all if it. Starts with 46100-but the rest of the numbers are not all that clear. I know it is still available because reddat on eBay has them. I need a couple of them and his prices when shipped end up near $100.

www.V8-240Z.com will get you to his site and the snubber.