Replacement braking system for 240z - options?

[jonbills]

You can take them apart. The seal kit should contain an o ring or two for when you put them back together.

 

[MCBladeRun]

You can take them apart. The seal kit should contain an o ring or two for when you put them back together.

Ahh ok, I was warned against this myself. Can't remember who though.. always the way.

 

[MCBladeRun]

Good point re the halves - I'm suspecting it can end up being quite a time consuming job and it may in fact be easier and time saving simply to replace, given that replacement calipers seem readily available at low cost.

@Farmer42 will tell you that he had a remanufactured caliper leak brake fluid on him.

But, in the same breath, I went ahead and ordered remanufactured calipers and they've not leaked any fluid (currently I have an airlock on the furthest from the MC).

 

[Graeme - CZ]

RockAuto delivery came in 48hrs - i was gobsmacked at how quick. Discs require a hydraulic press to disassemble from the hub.

Out of curiosity. Anyone know where you can buy replacement front hubs, should I ever need one? It's an early '73 240z, so scallop hub. RockAuto do not sell them.

 

[MCBladeRun]

Possibly @Minksport ?

 

[Graeme - CZ]

So my new brake pads came with these spring clips. I saw a thread (below) which showed a couple of difference scenarios of fitting them, one which seemed wrong and the other which did not have the other clips being used. Neither of which seemed right, so i opted for not trying to fit them at all, as they were not there before when i stripped it down - meaning they never came with the pads i'd previously had from the late Mr F.

I assume no issue with what I have done, e.g. ignore them? (I was guessing they were kind of an either or scenario, as they only way i could see them fitting was if you did not use the other clips)

Brake Pads and Bearing Grease

Hi Guys, I'm giving the brakes a bit of an overhaul and re-greasing bearings, slowly working my way round the car, I’m stumped on a spring that came with the new pads. I’m not sure if it’s needed. There wasn’t a spring on the old pads and I’ve not seen any photos or references anywhere to...

zclub.net

 

[Graeme - CZ]

Just saw this. Perhaps this is what I should be doing with that spring? (granted that picture is missing the pins holding the rods in place)

 

[MCBladeRun]

If you find out, I would like to know myself - I never fitted them as I couldn't figure it out at the time.

 

[toopy]

Just saw this. Perhaps this is what I should be doing with that spring? (granted that picture is missing the pins holding the rods in place)

View attachment 57634

That i believe is the correct way to utilise these spring clips, they are purely to help push the pads off the disc, how effective they actually are is up for debate. As noted lots of people don't bother with them, but with or without you obviously still have to have the securing clips on the pins.
Retaining pin R clip is the correct name for the pin clips.

 

[Rob Gaskin]

Just saw this. Perhaps this is what I should be doing with that spring? (granted that picture is missing the pins holding the rods in place)

View attachment 57634

On this picture there is also stainless steel 'plates' that hook over the pad - not seen those before. I think the springs might just prevent any rattling but I've never had a problem with standard calipers.

 

[Graeme - CZ]

On this picture there is also stainless steel 'plates' that hook over the pad - not seen those before. I think the springs might just prevent any rattling but I've never had a problem with standard calipers.

It's unclear what the purpose of these stainless steel plates are for - they seem to apply pressure to the retaining rods. I struggle to imagine that the spring clip is designed to be used in tandem with these plates, rather it's one or the other. This image shows the spring without the plates, which seems much more like it (not a 240z). Curious what others make of it?

 

[yellowz]

Curious what others make of it?

I always thought the plates were supposed to stop rattling...............

 

[Graeme - CZ]

I always thought the plates were supposed to stop rattling...............

I see how they'd do that, but doubt they are designed to also work with the spring attachment - the picture 2 above whilst the only way, does not exactly look correct, where as above does - but has to omit the plates.

 

[MCBladeRun]

I see how they'd do that, but doubt they are designed to also work with the spring attachment - the picture 2 above whilst the only way, does not exactly look correct, where as above does - but has to omit the plates.

Perhaps it's 2x parts so that you can do 2x different installation methods?

I think I read its for different models of cars, more modern with the brake sensor attachment?

 

[Graeme - CZ]

Perhaps it's 2x parts so that you can do 2x different installation methods?

I think I read its for different models of cars, more modern with the brake sensor attachment?

Be good to know / understand what is optimum for our Z cars. I know what you mean, as these pads will likely also go on other more modern cars.

 

[240L31]

It's unclear what the purpose of these stainless steel plates are for - they seem to apply pressure to the retaining rods. I struggle to imagine that the spring clip is designed to be used in tandem with these plates, rather it's one or the other. This image shows the spring without the plates, which seems much more like it (not a 240z). Curious what others make of it?

View attachment 57661

The stainless steel plates are a NVH measure. They change the eigenfrequency and are supposed to stop brake squeal.

 

[yellowz]

The stainless steel plates are a NVH measure. They change the eigenfrequency and are supposed to stop brake squeal.

Is there a proper name for them as I need some. I cannot seem to get them in an internet search.

My brakes are their own warning system for the car trying to stop.

Just answered my own question - caliper shims