View RSS Feed

Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background

Brake OH, Cooling Sys, etc 11

Rate this Entry

While servicing this NSX, another owner brought his car and wanted me to use this aftermarket brake master cyl.

It's from Cardone and from outside, there is some differences compared to the OEM one but being as aftermarket parts manufacture, looked good quality.

Haven't applied vacuum pressure yet and also not measured accurately so can't confirm whether I must adjust the pushrod clearance or not but
compared to the new OEM one, the depth of the centre plunger is about 0.5mm deeper.

This means that the pushrod must travel bit further before it starts pressing the piston inside the master cyl.

If you are doing DIY, not a problem because you can adjust the pushrod clearance by yourself.

However, if you are asking someone to replace the master cyl for you and had to adjust the clearance or in the future,
if thinking of going back to the OEM master cyl (that will force you to re-adjust the clearance), it won't save the cost.

Will see whether I can use it without adjusting the clearance or not.

For this NSX, I'm going to replace it with the OEM one.

Apparently, it was replaced in the past by the previous owner but Honda changed the colour of the reservoir years ago yet the existing one was not blue and
already leaking at the base.

Either used piston overhaul kit instead of replacing the whole assy or went for the Centric one but didn't install it properly???
Any way, the booster cover will be treated and the OEM master cyl will be installed properly this time.

Removed the rust to this level on all of the calipers.

Front ones were the worst.

Rears were rusty but not too bad.

Will apply treatment to prevent the rust getting inside until the next brake OH.

Similar photo for both the R & L sides so just going to show one side.

New bleeder plug.

Testing the smooth operation of the new pistons and seals, boots.

When replacing the brake pad and have to push back the piston, even with years of usage, you should be able to push them back into the caliper body with just your finger.
If you need to use the tool, you better overhaul it.

When it's new, the seal is still fresh so everything moves smoothly.

Carrying on with the remaining task....