sr20 valve stem seals - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Kazama1986 · 09-03-2008, 07:56 PM

Well my sr20det redtop started to smoke and from guess it has to be the valve stem seals. I have found replacements at phase2motortrend. but on this little write up it says i can use ka24de ones for the exhaust and sentra ones for the intake. the write us is here Technical Articles: How To: Build a 9000rpm SR20DET Head, and please don't burn for looking on nico club. but i was wondering if it true that i can use these instead of the ones from phase2motortrend. also i wonderng if i should do anything else to the head while i have torn apart. not things like upgraded springs and retainers and all that other fun stuff. just the bare minium i guess. my pockets are only filled with lint and old receipts. thanks for the time.

aNskY · 09-03-2008, 08:01 PM

that would be the time to do a valve job, springs/retainers/cams, port/polish, etc .. but if dont have the cash or thats not what youre lookin for, just replacing the seals would be fine.

Kazama1986 · 09-03-2008, 08:28 PM

thanks for the reply, but does anyone know if the valve stem seals can be used from a different motor?

Sileighty_85 · 09-03-2008, 08:41 PM

Just buy OEM dont cheap out and buy some autozone crap that will wear out after a year or so

OEM S13/S14/S15 SR20DET Valve Stem Seals

Kazama1986 · 09-03-2008, 10:26 PM

sorry but i have another question. i'm planning on doing this with the head still on the block. how would i pressurize the cylinder?

Sileighty_85 · 09-04-2008, 05:51 AM

there is an adpater that you can buy that screws into the spark plug socket.

I heard ppl say that doing a cylinder at a time is easier if you raise that cylinder to TDC and letting the valve sit on it.

pwr-adr · 09-05-2008, 06:00 PM

/\ /\ True, just set the cylinder you are working on to tdc so even if the valve does drop it doesn't go down too far and looses alignment with the guides. I just used a similar sized socket in comparison to the seals and tapped them down. No issues since.

Kazama1986 · 09-05-2008, 11:47 PM

but how did you pull the seals out since the valve is still in place. do they break loose easily?

09-03-2008, 07:56 PM	#1
Kazama1986 Join Date: May 2008 Location: Ptown Age: 34 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	sr20 valve stem seals Well my sr20det redtop started to smoke and from guess it has to be the valve stem seals. I have found replacements at phase2motortrend. but on this little write up it says i can use ka24de ones for the exhaust and sentra ones for the intake. the write us is here Technical Articles: How To: Build a 9000rpm SR20DET Head, and please don't burn for looking on nico club. but i was wondering if it true that i can use these instead of the ones from phase2motortrend. also i wonderng if i should do anything else to the head while i have torn apart. not things like upgraded springs and retainers and all that other fun stuff. just the bare minium i guess. my pockets are only filled with lint and old receipts. thanks for the time.

09-03-2008, 08:41 PM	#4
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Just buy OEM dont cheap out and buy some autozone crap that will wear out after a year or so OEM S13/S14/S15 SR20DET Valve Stem Seals __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

09-04-2008, 05:51 AM	#6
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	there is an adpater that you can buy that screws into the spark plug socket. I heard ppl say that doing a cylinder at a time is easier if you raise that cylinder to TDC and letting the valve sit on it. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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09-03-2008, 08:01 PM	#2
aNskY Nissanaholic! Join Date: Apr 2005 Location: NY Age: 37 Posts: 1,604 Trader Rating: (10) Feedback Score: 10 reviews	that would be the time to do a valve job, springs/retainers/cams, port/polish, etc .. but if dont have the cash or thats not what youre lookin for, just replacing the seals would be fine.

09-03-2008, 08:28 PM	#3
Kazama1986 Join Date: May 2008 Location: Ptown Age: 34 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	thanks for the reply, but does anyone know if the valve stem seals can be used from a different motor?

09-03-2008, 10:26 PM	#5
Kazama1986 Join Date: May 2008 Location: Ptown Age: 34 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	sorry but i have another question. i'm planning on doing this with the head still on the block. how would i pressurize the cylinder?

09-05-2008, 06:00 PM	#7
pwr-adr Leaky Injector Join Date: May 2008 Location: ABQ, NM Posts: 127 Trader Rating: (0) Feedback Score: 0 reviews	/\ /\ True, just set the cylinder you are working on to tdc so even if the valve does drop it doesn't go down too far and looses alignment with the guides. I just used a similar sized socket in comparison to the seals and tapped them down. No issues since.

09-05-2008, 11:47 PM	#8
Kazama1986 Join Date: May 2008 Location: Ptown Age: 34 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	but how did you pull the seals out since the valve is still in place. do they break loose easily?