260z unknown break upgrade ?

[260z2seater]

Hi guys I have recently gutted the 260z and whist pulling the front suspension off I noticed the front breaks have been upgraded, as the disks are vented for starters and measure approx. 280 dia.

The front calipers although they are rusty are 4 piston calipers. The only markings vissable are 155r and 155l. I have googled the shit out of them with no results . I have checked the most common caliper upgrades and none seem to match. Are any of you familiar with this ? 

I will upload a better image of the caliper tommorrow as it 1130 pm as I right this post.

Also added a picture on the rottisery because why not

Tia 

[HKSZ]

You'd need better photos than that but there was old volvo and BMW iron 4 spots that bolted up, take out a pad and match shape to a DBA catalogue

[gilltech]

Who knows what BRAKES they are. They look pretty old and well rusted. Back in the day people were fitting all sorts of 4-pots, BMW or Volvo as mentioned above, or Valiant, or Commodore, or Toyota, whatever was to hand, generally requiring some adaptation. But IIRC the most popular were Toyota (Hilux I think?) as they were pretty much a bolt-up or so I was led to believe.

With the 4-pots having more fluid to move around you may find a different master cylinder has been fitted.

Looks like plenty of meat on the rotors to have them machined. However, if it were me I'd toss it all and start afresh with nice new shiny and correct Z brake parts, discs, calipers, hoses, master cylinder etc then I'd know where I was at.

Edited February 16, 2020 by gilltech

[260z2seater]

More photos. I found the manufacture of the calipers they are ATE, but have never herd of this brand. 

[gilltech]

I've heard of them. They're aftermarket, might be Autopartswarehouse or somesuch. But who knows what car model they were originally made for, maybe Z? But do you really want to overhaul them when they are in that condition? Do the pistons still move, or are they stuck solid?

Edited February 16, 2020 by gilltech

[260z2seater]

4 minutes ago, gilltech said:

Who knows what BRAKES they are. They look pretty old and well rusted. Back in the day people were fitting all sorts of 4-pots, BMW or Volvo as mentioned above, or Valiant, or Commodore, or Toyota, whatever was to hand, generally requiring some adaptation. But IIRC the most popular were Toyota (Hilux I think?) as they were pretty much a bolt-up or so I was led to believe.

With the 4-pots having more fluid to move around you may find a different master cylinder has been fitted.

Looks like plenty of meat on the rotors to have them machined. However, if it were me I'd toss it all and start afresh with nice new shiny and correct Z brake parts, discs, calipers, hoses, master cylinder etc then I'd know where I was at.

Hmm, now I have found the manufacture of the calipers I may sand blast them and rebuild them, as I think the will be substantial for the rb25det.

I will also be upgrading the rear drums to disks.

I'm not sure what master cylinder it was running, as it is gone along with the break booster. So they will be new items latter on. I have a lot of work ahead that's for sure. 

On another topic I started cutting the floor out today, and nearly have the new pan ready to go in. 

[260z2seater]

[260DET]

You are going to need new BRAKE pads sometime so why not pull the pads as HKSZ suggested and check them in a DBA cattledog? Pads may not be available, who knows.

[260z2seater]

Yeah I will, I honestly just expected someone to say, hey yeah I have thoughs on my z, they are......

Wishful thinking lol.

260DET, do you have a det motor in your 260 ? If so what are you running ? 

 

[24 Dat]

i would be seriously looking at just how well you could possibly bleed the air out of these calipers, from the first photo it looks like it would be an impossibility at the angle the bleed nipple would sit compared to how the caliper angle is  , there are to many other options out there which are known to work.

 

[gilltech]

The calipers look so rusty I'd be surprised from experience if the pistons aren't seized solid, brake fluid is hydroscopic so absorbs moisture hence corrosion internally - I presume with the master cylinder gone the brake pipe ends have been left open to the air. But by all means, soak the calipers in penetrating oil and see how you get on. But they will surely need rekitting, whatever they are.

Edited February 17, 2020 by gilltech

[260z2seater]

Yes they will defiantly need rebuilding

I'm cool with that though the day it takes to rebuild them is nothing to the rest of the car.

on another topic what motor are you guys running ? Molested car or sock ish ? 

I spoke to a engineer today about the cost involved, this is the first car I have restored and I know engineers ain't cheap but wow, looking at around $4500 for a motor  gear box checked over and passed off, more than I originally thought.

[HS30-H]

23 hours ago, 260z2seater said:

More photos. I found the manufacture of the calipers they are ATE, but have never herd of this brand. 

ATE is the abbreviation of Alfred TEves Maschinen und Armaturenfabrik, a German company with a long history. They still look after their obsolete product range and there's a downloadable catalogue of 'Classic' spare parts on their website: https://www.ate-brakes.com/products/ate-classic/

I reckon your calipers were original factory fitment on a Porsche, and you should be able to overhaul them with ATE 'Classic' parts.

[260DET]

On 2/17/2020 at 7:59 AM, 260z2seater said:

Yeah I will, I honestly just expected someone to say, hey yeah I have thoughs on my z, they are......

Wishful thinking lol.

260DET, do you have a det motor in your 260 ? If so what are you running ? 

 

My first Zed was a rusty 260Z which was fixed up, engine fitted was a FJ20ET, a lighter SR20 would be a good choice.

[GregTas]

On 2/17/2020 at 8:59 AM, 260z2seater said:

260DET, do you have a det motor in your 260 ? If so what are you running ? 

RB25DET in mine and Skyline brakes to go with it. GTR 325 mm rotors. 

Some machining work to fit them i.e. convert the five bolt rotor to four bolt. Fabrication of caliper mounts too. So if you can't do the work it could be expensive to get it done. There is a build thread on here done by KatoKid. I did it the same way, but went with the larger rotors.

 

Edited February 18, 2020 by GregTas

[260z2seater]

Nice man. That is something I would consider doing.

Did you by any chance drive the car before and after the upgrade ? Was there a big difference if so ?

Ohhhhh how I can't wait to RB mine. Nothing like the sound of a RB

Is your build finished ? I can't lie I have a lot of questions for you.

Where in au are you from Greg I take it Tasmanian?

[260z2seater]

21 hours ago, HS30-H said:

ATE is the abbreviation of Alfred TEves Maschinen und Armaturenfabrik, a German company with a long history. They still look after their obsolete product range and there's a downloadable catalogue of 'Classic' spare parts on their website: https://www.ate-brakes.com/products/ate-classic/

I reckon your calipers were original factory fitment on a Porsche, and you should be able to overhaul them with ATE 'Classic' parts.

Sweet, I did have a look at there site.

Thank you for the Info 

[GregTas]

On 2/18/2020 at 7:21 PM, 260z2seater said:

Nice man. That is something I would consider doing.

Did you by any chance drive the car before and after the upgrade ? Was there a big difference if so ?

Ohhhhh how I can't wait to RB mine. Nothing like the sound of a RB

Is your build finished ? I can't lie I have a lot of questions for you.

Where in au are you from Greg I take it Tasmanian?

No didn't drive before brakes. The car was built up from a body shell. Done for track. Probably a bit too much work for road use.

My car is a runner, but still tweaking. More photos in my profile.

Quite a bit of work to get an RB in. Engine and gearbox mounts. Tailshaft. Custom sump. EFI pump and surge tank. All the wiring. If you can't do it yourself, then quite  a bit cost to it all. Only for those that are committed and not on a limited budget. 

Yep I'm in Tas.