Mike Posted May 23, 2019 Share #1 Posted May 23, 2019 View Advert Brake fluid distribution valve Hi all, I'm looking for a new or rebuilt brake fluid distribution valve. This is the one thing I didn't replace during my restoration and it's time to do it. Unfortunately my current one is leaking and needs to be replaced before I drive it this summer. I did a pretty exhaustive search on our club site as well as other sites. Unfortunately, I don't see anyone mention a source to buy these rebuilt (or NOS). I want to keep the stock appearance and not really looking at attempting an upgrade. Looking for the entire valve, including switch. Can you please shoot me a message, or reply to this topic, if you know of a source? I prefer to have it ready to install because I just don't have the shop space to do my own work anymore. Advertiser Mike Date 05/22/2019 Price Category Parts Wanted Year 1971 Model 240z Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #2 Posted May 23, 2019 Thumbnail for the post. Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #3 Posted May 23, 2019 After looking this up on the Microfiche, the description shows up as ASSY-SWITCH BRAKE INDICATOR. Other posts on our site also suggest this thing really doesn't work for most cars (it didn't on mine because my master cylinder was dry due to a leak). It would be good to get it to function again, but, my main concern is mostly to get the leak fixed so I can get on the road. Here's a shot of the microfiche - Part number 46100-26100 or 46100-U5200 Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #4 Posted May 23, 2019 Seem to be getting this a lot... Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #5 Posted May 23, 2019 Found this reference over at the datsun1200.com website. The same part number is used on other Datsuns as well. Credit: Datsun 1200 Club http://datsun1200.com/modules/mediawiki/index.php?title=Warning_Light_Switch Warning Light Switch From Datsun 1200 Club Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode Special pages Double redirects Broken redirects Disambiguation pages Log in / create account Preferences My watchlist Recent changes Upload file File list Gallery of new files User list Statistics Random page Orphaned pages Uncategorized pages Uncategorized categories Unused categories Unused files Wanted pages Wanted categories Most linked to pages Most linked to categories Articles with the most categories Most linked to images Articles with the most revisions Short pages Long pages New pages Oldest pages Dead-end pages All pages Prefix index List of blocked IP addresses and usernames Book sources Categories Export pages Version System messages Logs MIME search List redirects Popular pages Search Printable version | Disclaimers | Privacy policyCategory: Brake System The braking system of North American 1200s was fitted with a 5-way splitter combined with a pressure failure warning switch. For safety, if a loss of pressure occurs, the Brake lamp lights up on the dash. Album click to view [edit] Overview The switch does not effect brake bias (it's not a Proportioning Valve). Album click to view Album click to view Warning Light Switch (brake line pressure differential) Album click to view Datsun 1200 LHD disk brake model. From the north american factory manual. A warning light is located on the instrument panel to warn the driver when a pressure difference of 13 to 17 kg/cm2 (185 to 242 lb/sq in) exists between the front and rear brake systems. A hydraulically actuated warning light switch is located in the engine compartment. Both front and rear brake systems are connected to the switch assembly. When a pressure difference of 13 to 17 kg/cm2 (185 to 242 lb/sq in) occursbetween the front and rear brake systems, the valves will shuttle toward the side with the low pressure. The valve contacts with the switch terminal, the ground circuit for the warning light is completed, and thus the warning light lights. In this case, correct the hydraulic brake problem and bleed the brakes. Check the warning light switch assembly for a proper operation. Check the switch assembly for fluid leakage. NOTE: Do not attempt to repair switch for any reason: replace switch assembly completely. There are two inputs (front and rear from master cylinder). And three output (two for each front brake, and one output back to the rear brakes. The electrical connector goes to the dash light. [edit] Wiring The brake lamp is fitted to North America 1200s per US federal law. Other 1200s did not have a lamp in this spot until October 1975. Post click for topic See also: Brake Wiring 1972 USA Owners manual (Page 11 ... ? BRAKE SYSTEM WARNING LAMP If either half of the dual brake system fails, the brake warning light (BRAKE) glows when brakes are applied. You must stop the car immediately and if you can safely operate with two-wheel brakes, move your car at reduced speed to the nearest service station. This warning light is also used as the parking brake warning light. Before starting, if the warning light does not glow when the parking brake and ignition switch are on, have the electrical system checked. [edit] Part Numbers 46100-U5200 ASSY-SWITCH BRAKE INDICATOR <> 46100-26100 $152 USD * B110 USA * S30 USA See also: Brake Piping Part Numbers#USA ¤ Link to comment Share on other sites More sharing options...
Rill Cosby Posted May 23, 2019 Share #6 Posted May 23, 2019 I won't lie, I did not read it all but there is a quantity of 280z NOS that is either your model number or a later model on eBay with a switch for $99 in North Carolina. Subtle differences. https://www.ebay.com/itm/NOS-OEM-Datsun-Nissan-280Z-Assembly-Switch-Brake-Indicator-Proportion-Valve-/113668719468 Sorry if that is not what you're after. Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #7 Posted May 23, 2019 9 hours ago, Rill Cosby said: I won't lie, I did not read it all but there is a quantity of 280z NOS that is either your model number or a later model on eBay with a switch for $99 in North Carolina. Subtle differences. Sorry if that is not what you're after. Hi Rill, thanks for the link! It looks like that one is for a 280z. The earlier 240z model has some differences. I appreciate the help! Link to comment Share on other sites More sharing options...
Mike Posted May 23, 2019 Author Share #8 Posted May 23, 2019 I made a call to Les Cannaday at CDM, he's checking to see if he has an extra that can be refurbished. FYI, I confirmed this morning that mine is leaking out from the large nut on the left side. Nissan couldn't have installed this thing in a more inconvenient location. It's going to be an interesting replacement project. Link to comment Share on other sites More sharing options...
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