z32 caliper rebuild - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ChingSR20 · 10-19-2007, 09:07 PM

I was taking apart my z32 calipers and noticed some surface rust on one of the pistons. I was wondering if i could just use a brillow pad and scrape it off or would i have to buy new piston. heres some pictures of the caliper and the bad piston.

garagelu · 10-19-2007, 09:09 PM

If it is just surface rust, I would go to the hardware store and buy some rust remover first. It should take it off right away. But I dont see any problems with using a brillo pad to take it off.

B Love · 10-19-2007, 09:20 PM

If its cheap to rebuild I would just rebuild. New seals never hurt anything

MAGILLA · 10-19-2007, 09:20 PM

I used 1500 grit sand paper and brake fluid for lubrication( on the outer part of the cylinder). It takes a while but works out well. You may be able to use a more aggressive sand paper but be careful not to score the metal.

As far as the inside of the piston, I used a dremel tool and a brass wheel.

ChingSR20 · 10-19-2007, 09:35 PM

thanks alot guys i thought i needed new pistons, i'll try sanding the rust down hopefully it doesnt leak when i rebuild it.

10-19-2007, 09:07 PM	#1
ChingSR20 Leaky Injector Join Date: Aug 2006 Location: Guam Age: 39 Posts: 65 Trader Rating: (0) Feedback Score: 0 reviews	z32 caliper rebuild I was taking apart my z32 calipers and noticed some surface rust on one of the pistons. I was wondering if i could just use a brillow pad and scrape it off or would i have to buy new piston. heres some pictures of the caliper and the bad piston.

10-19-2007, 09:20 PM	#4
MAGILLA Zilvia Member Join Date: Oct 2005 Location: Atlanta Posts: 208 Trader Rating: (0) Feedback Score: 0 reviews	I used 1500 grit sand paper and brake fluid for lubrication( on the outer part of the cylinder). It takes a while but works out well. You may be able to use a more aggressive sand paper but be careful not to score the metal. As far as the inside of the piston, I used a dremel tool and a brass wheel. __________________

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10-19-2007, 09:09 PM	#2
garagelu Nissanaholic! Join Date: Aug 2005 Location: Atlanta, GA Age: 40 Posts: 1,856 Trader Rating: (60) Feedback Score: 60 reviews	If it is just surface rust, I would go to the hardware store and buy some rust remover first. It should take it off right away. But I dont see any problems with using a brillo pad to take it off.

10-19-2007, 09:20 PM	#3
B Love Zilvia Addict Join Date: Apr 2007 Location: California Posts: 889 Trader Rating: (3) Feedback Score: 3 reviews	If its cheap to rebuild I would just rebuild. New seals never hurt anything

10-19-2007, 09:35 PM	#5
ChingSR20 Leaky Injector Join Date: Aug 2006 Location: Guam Age: 39 Posts: 65 Trader Rating: (0) Feedback Score: 0 reviews	thanks alot guys i thought i needed new pistons, i'll try sanding the rust down hopefully it doesnt leak when i rebuild it.