Jump to content
View in the app

A better way to browse. Learn more.

300ZX Owners Club

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Well,

My Zed has been off the road for the winter (under wraps) and I took it for MOT last week but it failed on a few points.

Mainly the front cross member was rotten and the brake hoses had a 'build up' of corrosion.

Basically I would like some advise on the possibility of replacing these parts.

Firstly is it a simple case of removing old X Member and replacing with new one? (are there any technical details / drawings / photos anywhere) and

secondly can I replace the steel brake hoses for braided ones, specifically these ones:- http://www.brake-lines.co.uk/hel-brake-lines-nissan-300zx-z32.html

Will these replace the metal hoses from the master cylinder right through to the calipers, front and back? If not can I get some braided hose to replace the steel hoses?

Thanks

zx_steve

Featured Replies

  • Author

That seller is no longer a member.

Was also looking for technical advice

if you go to http://300zx-twinturbo.com/cgi-bin/manual.cgi?list=em&dir=&config=&refresh=&slide=46&cycle=off&scale=0&design=default&total=70 that will show you what's involved on the first two pages.

 

As for the brakes, do you know where about's on the brake circuit there corroded? I would say replace like for like, as shiny braided brake pipes are only as strong as the hose inside, solid tubing is much stronger albeit less flexible!

 

HTH

cant you jsut clean the corrossion off the brakes pipes?

 

or do they have to be replaced?

 

sanding the rust would be cheaper i would have thaught.

cant you jsut clean the corrossion off the brakes pipes?

 

or do they have to be replaced?

 

sanding the rust would be cheaper i would have thaught.

 

Yep it is cheaper!

 

If the rust is too deep though you'll have to remove too much material and it'll be a weak spot.

it will actually be the radiator suport bracket, the best advice is to get someone to do it, was a bitch of a job and you have to be handy with a grinder and welder, jefftt has a thread somewhere that expalins what has to be removed to replace it

If its the all the metal brake lines then it will be the hardlines that run the entire length of the floorplan and up and under the rear subframe. You replace them with new metal brake lines.

 

To replace these is a very big job, it would cost several hundred for the labour involved.

 

if they are not too bad then you can wire brush them and underseal them.

ive also dont the brakelines on mine, cost about £400 quid, although the garage that done them said it should have been close to £600 for what was involved

Well,

My Zed has been off the road for the winter (under wraps) and I took it for MOT last week but it failed on a few points.

Mainly the front cross member was rotten and the brake hoses had a 'build up' of corrosion.

Basically I would like some advise on the possibility of replacing these parts.

Firstly is it a simple case of removing old X Member and replacing with new one? (are there any technical details / drawings / photos anywhere) and

secondly can I replace the steel brake hoses for braided ones, specifically these ones:- http://www.brake-lines.co.uk/hel-brake-lines-nissan-300zx-z32.html

Will these replace the metal hoses from the master cylinder right through to the calipers, front and back? If not can I get some braided hose to replace the steel hoses?

Thanks

zx_steve

 

Starting at the bottom of your post......

the link you have posted for braided brake lines is to replace the stock rubber ones only.

The best plan for replacing the steel ones when they are corroded is to use copper or copper alloy(Kunifer)

these are measured and made with replacement ends to match the originals.

as already said replacing these metal pipes is a labour intensive PITA.

Now moving to the "crossmember".

this can be a confusing term. Many people refer to the crossmember meaning the metal bridge across the engine bay which supports the engine. On UK cars I have seen this corrode and need replacing. This is relatively straight forward as it is a Bolt-in piece..( please note I didnt say easy!!)

The other piece referred to as a crossmember is the lower radiator support panel. This too corrodes and often gets damaged by idiots with trolley jacks:smash:

Replacing this is not simple and quite tedious as it is a welded in part of the shell. So unpicking of spot welds required and re-welding of replacement is required. This will need doing to MOT standard.

HTH.

 

and if you need either crossmember then I can supply:x:

:D

i was referring to the rad support bracket directly under the air con rad on my uk car, luckily i had already junked the aircon so that was one prob out of the way

  • Author
Now moving to the "crossmember".

this can be a confusing term. Many people refer to the crossmember meaning the metal bridge across the engine bay which supports the engine. On UK cars I have seen this corrode and need replacing. This is relatively straight forward as it is a Bolt-in piece..( please note I didnt say easy!!)

The other piece referred to as a crossmember is the lower radiator support panel. This too corrodes and often gets damaged by idiots with trolley jacks

 

I am pretty sure from the Mot failuer it was described as "The one that supports the suspension and not the one that supports the radiator".

So I can only assume (yes, yes I know Assumptions the mother of all.....) that it is the first one that you refer to.

Can you get me price for the one that bridges the engine and if possible a quick step guide (as in is it simple enough to do without a pit / any things to look out for) to replace said crossmember.

Regarding the brakes I was told it was a front - rear pipe that had corroded, so is it easy / has anyone built their own pipes from, say, this:-

https://www.europaspares.com/BRAKE_PARTS/BRAKE_PIPE_and_FLUID/BRAKE_PIPE___COPPER___KUNIFER_3825.html ??

Also what diameter is the pipe just so I can get an idea of the type of pipe.

 

Cheers

zx_steve

Well,

My Zed has been off the road for the winter (under wraps) and I took it for MOT last week but it failed on a few points.

 

Will these replace the metal hoses from the master cylinder right through to the calipers, front and back? If not can I get some braided hose to replace the steel hoses?

Thanks

zx_steve

 

If its the all the metal brake lines then it will be the hardlines that run the entire length of the floorplan and up and under the rear subframe. You replace them with new metal brake lines.

 

To replace these is a very big job, it would cost several hundred for the labour involved.

 

if they are not too bad then you can wire brush them and underseal them.

 

Just had a similar fail on mine as regards the brake's,

 

http://www.300zx.co.uk/forums/showthread.php?t=127132

 

Garage's have advised on the lines of what Legrath above has said , if there not to bad the wire brush and underseal is the cheaper option ;)

Edited by ck300z
adding link

I am pretty sure from the Mot failuer it was described as "The one that supports the suspension and not the one that supports the radiator".

So I can only assume (yes, yes I know Assumptions the mother of all.....) that it is the first one that you refer to.

Can you get me price for the one that bridges the engine and if possible a quick step guide (as in is it simple enough to do without a pit / any things to look out for) to replace said crossmember.

Regarding the brakes I was told it was a front - rear pipe that had corroded, so is it easy / has anyone built their own pipes from, say, this:-

https://www.europaspares.com/BRAKE_PARTS/BRAKE_PIPE_and_FLUID/BRAKE_PIPE___COPPER___KUNIFER_3825.html ??

Also what diameter is the pipe just so I can get an idea of the type of pipe.

 

Cheers

zx_steve

 

3/16" copper will be fine. You will need some short metric "Nissan style" tube nuts too.

Alternatively many motor shops/ garages will make a pipe to order if you take the old one as a pattern. Often at very reasonable money. A better idea if you dont have the correct flaring kit to DIY . Copper is easier than Kunifer to work with .

Here is a pic of the lower rad support panel. Check if its this or the engine one you need.( Bear in mind I havent drilled it off the chassis legs yet)

More info + pics to follow........

  • Author

Pete,

will check sometime this weekend. I am pretty sure they made it clear that it WASNT the rad mount one but the one that holds the suspension etc in place.

Cheers

zx_steve

Sos for the semi thread hyjack

 

Pete did you make your own brake pipes on the red car and the line lock?

Sos for the semi thread hyjack

 

Pete did you make your own brake pipes on the red car and the line lock?

Of course.:mac1: I have the full professional kit.;)

the rad support bracket does support some suspension parts, it holds the tension rod brackets in place

If you can get a bit of room under the zed changing the cross member is fairly straight forward, need to support the engine though :D, I would be amazed if that has rusted to the point of being an mot failure and nothing on the rest of the car has.

 

Brake pipes get a flare tool some fittings and pipe and learn how to do it your self, will save you a fortune in years to come

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Important Information

Terms of Use

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.