240z Master Cylinder Help
OK, here's the dilemma. My old z was a 73. For which I had a buncha spares. The new car is a 1970. The brake master cylinder is different and worn out. And $250 - $311. The 70 thru 71 has the lines flip-flopped, actuating the rears first. And I have several new spare masters for the later models.
Can I ..
1) Swap the brake lines and use the newer master cylinder? Even new its $178 at Nissan. $59.00 at NAPA.
2) Find the correct one cheap anywhere?
3) Rebuild if the bore isn't shot?
4) Sell the newer ones here to somebody and use the cash to buy the $250 one?
Tom
240Z Master Cylinder replacement Update!!!
Tom Donnelly,
Sorry, I didn't see this topic last month, or I'd have replied to it then.
If you are still working on this project, I may have a few words of advice for you. I have been doing this same project during the last few years with VERY BAD RESULTS, due to the following. I'll cut to the chase:
1970 240 Z, master cylinder replacement (I actually replaced all components of the hydraulic system). Datsun Parts House listings have a different cylinder than the original. It turns out to be the 260Z/280Z cylinder that is sold for replacement (there was no listing for the original cylinder). It has the output lines reversed (no problem), and one other difference. It uses the matching pushrod (adjustable rod that exits the front of the cylinder and enters the Power Brake Booster) which is the same style as the early one, but longer. Let me be clear, here. The 260/280 used a different cylinder and pushrod. This is the reason my project lasted so long...I never knew of the longer pushrod, and was not able to achieve a solid pedal after bleeding. As soon as the difference was noted, the brakes were functional (last summer to be precise).
Relative to IT rules, (I am also a racer in IT), this is actually a listed replacement part from Nisson/Datsun, so there is no problem using it in class,and brake lines are free. Besides, as you noted, the cars are on the same line.
I hope this is some help to you. I also hope you didn't find the problem that I lived withl
Good racing,
Bill:024: