Well done!

 

That's great news Bgw. So you didn't wind up rebuilding the old one after all? Did you ever find the suspected leak?

 

I am one blessed and happy dude today!!! But I did not feel that way this morning.

I woke up this morning thinking I might just go purchase a new MC for $1k today. It is just wrong that a MC would cost that much! Anyway...
While I was drinking my coffee this morning I decided to checkout craigslist to see the SC430s I should have purchased instead of this one...I came across a 2005 SC430 parts car less than an hour from my home.
I called the salvage yard and they said the car had 90k and the MC worked just fine. Before I went there, I stopped by the Lexus dealer to pick up the motor mounts and while I was there I dragged my leaking MC to let the parts guy and any techs take a look at it.
They did and confirmed that a rebuild kit would not fix the leak. They also told me that it is rare for an SC430 to have a MC go bad.

Here is where I was blessed, the MC I picked up and installed works Great!!! And the salvage yard sold me the complete unit with booster and ABS for....drum roll... $100

The master cylinder was installed and I bled the MC first then the entire brake system. The brakes function great and no leaks!

 

Now that is a sweet deal!! What is more amazing is that there was a SC430 parts car near by!

 

Morning coffee saved you 900 big, glad you got it fixed!
Mike

 

I now seem to have the exact problem you have on my 03 SC430. Did you find that they make a rebuild kit. Seems it would be cheaper than a used Master Cylinder. Need Help.
theazz

 

Hey azz, yes they make a rebuild kit, 04493-30330 I hope this works for you. Does yours leak down onto the exhaust?

 

Yes it does leak onto exhaust so I removed the master cylinder, and ordered a used one.
I hate leaks.
Theazz

 

Looking back at my pictures, is yours leaking in the same area as mine or somewhere else?
A rebuild kit would not correct the leak I had.

 

You might want to check the brake solenoid valve rubber o-ring. Mine was leaking, but Lexus doesn't sell the o-ring by itself. It's better to take the old o-ring to a parts house and let them size it to one they have in stock. My local Dallas repair shop did this for me, but I don't know the size they found that worked.

 

Check me on this but I believe the solenoid is shown in the second picture on the first page. Is that correct? You mean the solenoid was removed and a $.50 o-ring fixed the leak!

If that is the case, I am going to open my old master cylinder and do an inspection.

 

Yes. Just the o-ring replaced. However, since I didn't do it myself, I had to pay labor, etc, but it was much better that replacing a complete master cylinder.

Here's a weird bit of info - you cab buy a new solenoid valve from Lexus, but it is priced higher that a new master cylinder - one that includes a new solenoid valve.

 

A big thanks TXFM. I will let all of you know how it goes when I do this. Pictures will be posted ;-)



I Started to open the master cylinder but could not figure out how the solenoid came apart. If you have done this before, please chime in




I removed the three additional screws but this piece did not want to come off the main MC assembly. Any ideas?

 

I've never removed one. Look on this page at Item #4 for the solenoid valve shetch to see what it looks like and where it's located: http://www.mylparts.com/parts/2002/L...agramCallOut=4

 

I forgot that you can't show a link. So just go to the mylparts website and put the part number in the Search location.