Captain Obvious

So pardon my ignorance on the early cars, but how do you read / interpret the date codes on the glass? I'm assuming it's the "M-214"?

I saw him with his band. Maybe ten years ago? RIP.

Got it. Well, that may be how your life goes, but that's not how stuff works for me. Hahahaha!! I'm gonna toss the master in the ultrasonic cleaner and see what happens after that. If I can't get those valve seats out, I'll just leave them alone. As long as they are clean, they don't seem to be causing any trouble.

Ummmm... The rust?

Thanks for the input everyone. @Terrapin Z, I'll reach out about that cylinder you have. And @inline6, did you have to pry those valve seat sleeves out, or did they pretty much fall out after you had cleaned everything up?

I'm working on an early master cylinder now. @inline6 How did yours turn out? I had to resort to drastic measures to get the rear circuit piston out... Anyone got a half dead early master cylinder around they would offer up as parts? I could use one of these: Also, the valve seats for the output check valves... Mine are stuck in there. How did you get these out?: And just to make searching easier, here are a couple master cylinder related links: https://www.classiczcars.com/forums/topic/68100-master-cylinder-anomaly/ https://www.classiczcars.com/forums/topic/66276-brakes-dragging/ https://www.classiczcars.com/forums/topic/66168-brake-master-cylinder-identification/ https://www.classiczcars.com/forums/topic/21826-brake-master-cylinder-240z/

My understanding is that the tapered hardware used elsewhere on the Z's is BSPT. So my expectation is that the original plug on the diff is BSPT as well. That said... I sure wouldn't fault you if you decided to use NPT instead of BSPT for a full custom part of your own design. I probably would.

Does it smell like gauss? You know... When you tell someone to smell your finger?

What he said. Nice work!

LOL! That one looks like the snapped off lower bolt that came off the car! So I think I already have that one!

Looks like I got here late and the good ideas are already taken! That idea of a spacer ring inside the tail housing sounds like a great way to mitigate the damage. It looks like there is enough of the original circumference to locate the spacer ring, Some epoxy or sleeve retainer loctite to hold it in place, and you're good to go. Do you have a lathe to make the spacer ring? I don't remember who has one and who doesn't anymore.

I was just recently messing around with a window (fumbling moderately successfully?) and I found that rubber roller had seized on it's axle and had worn a flat into the rubber. That can't help matters as far a scratching the glass goes.

@Terrapin Z, I have verified the hardware size I'm looking for... M10 x 1.50 x 45mm long (measured under the head). I believe what you offered up would be perfect, even the patina! I'll send you a PM! Thanks for the help!!

Haha!! Yes, that is way too much bling for me! My goal with this car is that it will show it's years. I'm not intending (nor qualified to perform) a restoration, I'm intending "a display of well earned experience". I want stuff to work, but there isn't much bling left from 1970.

Well I don't have anything yet, but that stuff that Terrapin posted looks like the kind of stuff elsewhere on my elite early 240 junk. Thank you, my friend for your offer to help, and the hardware you have would work in a pinch. A pinch that I may yet take you up on! Certainly better than what I have been using.