Piston seals? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Carlwill · 06-13-2005, 02:57 PM

I am pulling the head of my motor and was wondering since the motor is out, should I replace the piston seal rings? I know they sit in the block and not the head but since my motor will be out and I am replacing stuff, is it worth my wild to swap them out on a Red Top? I don't if they need to be replaced but I figure better safe than sorry - any opinions?

How hard are they to get to once the head is removed and the top of the pistons are exposed? Or must I remove the crank

ultraDorksGarage · 06-13-2005, 03:36 PM

changing piston rings while block is in the car is not something u want to try. yes it is possible, but on our cars it involves dropping half of the front suspenison so oil pan can come out just to access rod bolts.

1 not fun.
2 no where near worth the trouble, if u intend to do it, pull motor, itll be cleaner(hence better job) and way easier that way

Buffalo Daughter · 06-13-2005, 03:52 PM

you minus well but then you minus well change the main bearings, rod bearings and studs. I mean no use in taking one thing out and leaving old parts in. Shit your half way there. I wouldnt just do the piston rings because the bearings and all the other stuff mentioned would suffer because of age/wear.

boosteds13 · 06-13-2005, 07:20 PM

You shouldn't replace the piston rings without a honing job.

Chernobyl · 06-13-2005, 07:59 PM

not worth the trouble, IMO, unless the block is really old.

if its not broken, why fix it?

06-13-2005, 02:57 PM	#1
Carlwill Zilvia Member Join Date: Mar 2005 Location: Orlando, FL Age: 42 Posts: 238 Trader Rating: (0) Feedback Score: 0 reviews	Piston seals? I am pulling the head of my motor and was wondering since the motor is out, should I replace the piston seal rings? I know they sit in the block and not the head but since my motor will be out and I am replacing stuff, is it worth my wild to swap them out on a Red Top? I don't if they need to be replaced but I figure better safe than sorry - any opinions? How hard are they to get to once the head is removed and the top of the pistons are exposed? Or must I remove the crank __________________ Linux System Administrator rm -Vfr /etc/nix* "Love is a fist"

06-13-2005, 03:52 PM	#3
Buffalo Daughter Zilvia Addict Join Date: Aug 2002 Location: In The Depths of MorDor Posts: 764 Trader Rating: (0) Feedback Score: 0 reviews	you minus well but then you minus well change the main bearings, rod bearings and studs. I mean no use in taking one thing out and leaving old parts in. Shit your half way there. I wouldnt just do the piston rings because the bearings and all the other stuff mentioned would suffer because of age/wear. __________________ kick rocks.

06-13-2005, 07:20 PM	#4
boosteds13 Zilvia Addict Join Date: Nov 2003 Location: Port Orange, FL Posts: 623 Trader Rating: (0) Rides Gallery: boosteds13 Feedback Score: 0 reviews	You shouldn't replace the piston rings without a honing job. __________________ "A CA? WTF is that? You shoulda got an SR yo." View my vBPicGallery!

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06-13-2005, 03:36 PM	#2
ultraDorksGarage Zilvia Member Join Date: Mar 2005 Location: Hawaii Posts: 204 Trader Rating: (0) Feedback Score: 0 reviews	changing piston rings while block is in the car is not something u want to try. yes it is possible, but on our cars it involves dropping half of the front suspenison so oil pan can come out just to access rod bolts. 1 not fun. 2 no where near worth the trouble, if u intend to do it, pull motor, itll be cleaner(hence better job) and way easier that way

06-13-2005, 07:59 PM	#5
Chernobyl Zilvia FREAK! Join Date: May 2003 Location: Denver, CO Age: 38 Posts: 1,563 Trader Rating: (6) Feedback Score: 6 reviews	not worth the trouble, IMO, unless the block is really old. if its not broken, why fix it?