master cylinder rebuild
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Joined: Oct 2009
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master cylinder rebuild
Anyone ever rebuild a master cylinder?? I was going to buy new but decsided to try to keep original. Just sent the brake booster out for rebuild and thought I might tackle ms....Thanks in advance!
Pro
Joined: May 2011
Posts: 581
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From: BC
They're a pretty simple device, no special skill required and the only special tool is a brake hone.
The determining factor as to whether it is rebuildable is whether there is pitting in the bore. You can not hone them to the bottom of the pits.
If keeping your original is important you can send it out to be sleeved.
Steve g
The determining factor as to whether it is rebuildable is whether there is pitting in the bore. You can not hone them to the bottom of the pits.
If keeping your original is important you can send it out to be sleeved.
Steve g
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Russ-
We do this all the time.. and Steve is on target.
The key is to make sure there is nothing in the bore after it is honed. What will appear as a dark spot is in fact a rust pit or soft metal... they must all be gone before re-assembly.
Over time condensation gets in the cylinder bore and it will rust or pit. Rust cutting the seal is usually what causes failure.
Cylinder hones are cheap to buy and when you use them make sure to put some cutting oil in the bore.
There are different stone grits you can get as well...
Willcox
We do this all the time.. and Steve is on target.
The key is to make sure there is nothing in the bore after it is honed. What will appear as a dark spot is in fact a rust pit or soft metal... they must all be gone before re-assembly.
Over time condensation gets in the cylinder bore and it will rust or pit. Rust cutting the seal is usually what causes failure.
Cylinder hones are cheap to buy and when you use them make sure to put some cutting oil in the bore.
There are different stone grits you can get as well...
Willcox
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
I had mine (the original one) stainless steel sleeved before I rebuilt it. This way you know you got a long lasting rebuild and a m/c that you should never have to replace.
