What brand master?

[Stitebunny]

I need to replace the master on my 510.  What brand do you guys like?

Rock Auto has a Raybestos and Cardone in stock.  

Either of those decent?  I did see a Nabco rebuild kit somewhere but I think I just want to drop a whole unit in.

 

Thanks

[datzenmike]

I would look at the Nabco kit. Quality is almost certainly higher than some unknown brand. Most are Chinese made and although they may have lifetime replacement do you really want a failure? It's not hard to rebuild them and increases your knowledge and appreciation of this part

[flatcat19]

If you can get your hands on a CENTRIC...

 

 

I would recommend CENTRIC any day, any application.

[510freak]

If you can get your hands on a CENTRIC...

 

 

I would recommend CENTRIC any day, any application.

 

This

[thisismatt]

Rockauto has centric

[datzenmike]

Do they have 15/16 for Datsun cars?

[510freak]

Do they have 15/16 for Datsun cars?

RAYBESTOS MC39277 Professional Grade; Bore Size=15/16

[datzenmike]

I had a hell of a time finding the rebuild kit for my 15/16". I think it was only $12 and half hour to 'build'. Works great on Maxima calipers.

[banzai510(hainz)]

Unless it s NEW Nabco/Tokico they all are really 5 year hydralic parts  Believe me.

 

If rebuilt  but Nabco/Tokico core its the same as above. maybe a 5 year part if that.

 

brand name dont mean much as most are sorced thru Italy, Taiwain or now China. Body is fine its the rubber that wears out. Jap rubber is just better. pretty all with hydralic parts. Buy 2 as youll need it.

 

I got only 1.5 years out of my clutch master the last one I did. the other same time but would pump up and not release.

 

 

If you can fine NEW Made in Japan then pay the 120$.

[Stitebunny]

Thanks for the input. I'll see what I can find.

 

Fyi, mine is stamped 3/4 on the 70 510 wagon.

[datzenmike]

The majority of 60-mid70s Datsun cars were 3/4". As weight went up so did the master in response to larger calipers/ wheel cylinders and brake boosters.

[KoHeartsGPA]

How difficult would it be to rebuild your own?, has anyone here done it?, I had my old one apart and really doesn't look all that special....

[datzenmike]

I've done several. A dual master for a 510 and a 15/16" zx for my 710... at least. They are as easy as they look. Cleanliness is extremely important... cannot stress this enough, so lots of paper towels and CLEAN rags, spray brake cleaner. The bore inside must be operating theater clean and smooth. Lube all rubber parts with brake fluid before installing. Have a diagram and/or take pictures. Make sure the kit has all the parts.

 

The FSM says to never remove the reservoirs, but to replace with new ones. I can only assume they are concerned that the owner may not get the clamps back on properly and the reservoir leaks and goes dry without warning. Maybe the plastic parts get brittle? I simply warm the bottoms in hot water to soften them, dry thoroughly slip on and clamp them down. You... are on your own on this.

 

If you have a master from a four wheel disc brake car and are retro-fitting to a drum brake rear wheel vehicle, the residual valve will need to be removed from the front (marked R for rear) of the master. You can simply replace it with any other residual valve from a drum rear vehicle. Drum brakes need to keep about 10 pounds of pressure in the rear hydraulic lines to compensate for the extra distance the shoes and springs need to travel before the shoes contact the drums. Disc brakes only need a couple of pounds to keep the pads lightly against the rotor.

[KoHeartsGPA]

Good stuff Mike, thanks!