SR valve stem seals...how far down do they go - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jspaeth · 10-02-2009, 10:33 PM

How far down the guide should the valve stem seals go?

I KNOW I have the right ones, and when i push them all the way down, there is a small gap between the metal on the outside of the valve stem seal and the surface below (SMALL gap).

I THINK this is ok but just wanted to double check.....we put an intake seal next to the guide, and it looked to us like the guide sticks up too far anyway for the seal to go all the way down and touch the surface below it.

Just wanted to double check, so I don't burn buttloads of oil when I put it all back together.

Thanks

om3ga · 10-02-2009, 11:02 PM

Got any pics?

jspaeth · 10-02-2009, 11:04 PM

Fuck.....the springs and retainers and keepers and valves are all already on.

I feel like someone who has done this before (or many times) will know the answer.

I really think they are fine, but just wanted a confirmation....

speedfiend · 10-02-2009, 11:50 PM

yeah man you will be fine. the stock ones that i just pulled off my head had a small gap like that. im almost positive that they arent supposed to sit flush. Just my .02.
Cameron

garagelu · 10-03-2009, 06:57 AM

you will be fine. They don't seat all the way down. Just make sure the seal "snaps" into the groove on the valve guide.

boosteds14 · 10-03-2009, 07:46 AM

yea if the seals touch the head then the guides are not in all the way.

jspaeth · 10-03-2009, 10:06 AM

Beautiful, fellas. Thank you for the clear and concise responses.

The other reason I was paranoid, was that they were SO hard to get off, I thought they would be way tighter and harder to get on!

knate · 10-06-2009, 11:15 AM

Quote:

Originally Posted by jspaeth

Beautiful, fellas. Thank you for the clear and concise responses.

The other reason I was paranoid, was that they were SO hard to get off, I thought they would be way tighter and harder to get on!

Nah, they are usually hard to get off because the rubber is just cooked and stuck onto the valve guides. And like everyone else said, they don't sit all the way down.

jspaeth · 10-06-2009, 12:11 PM

Quote:

Originally Posted by knate

Nah, they are usually hard to get off because the rubber is just cooked and stuck onto the valve guides. And like everyone else said, they don't sit all the way down.

Thanks. sadf

10-02-2009, 10:33 PM	#1
jspaeth Zilvia FREAK! Join Date: Mar 2006 Location: South Jersey Age: 25 Posts: 1,147 Trader Rating: (0) Rides Gallery: jspaeth	SR valve stem seals...how far down do they go How far down the guide should the valve stem seals go? I KNOW I have the right ones, and when i push them all the way down, there is a small gap between the metal on the outside of the valve stem seal and the surface below (SMALL gap). I THINK this is ok but just wanted to double check.....we put an intake seal next to the guide, and it looked to us like the guide sticks up too far anyway for the seal to go all the way down and touch the surface below it. Just wanted to double check, so I don't burn buttloads of oil when I put it all back together. Thanks __________________ Picture Me Rollin'

10-02-2009, 11:04 PM	#3
jspaeth Zilvia FREAK! Join Date: Mar 2006 Location: South Jersey Age: 25 Posts: 1,147 Trader Rating: (0) Rides Gallery: jspaeth	Fuck.....the springs and retainers and keepers and valves are all already on. I feel like someone who has done this before (or many times) will know the answer. I really think they are fine, but just wanted a confirmation.... __________________ Picture Me Rollin'

10-03-2009, 07:46 AM	#6
boosteds14 Zilvia.net Advertiser Join Date: Jan 2002 Location: CIPmotorsports Age: 28 Posts: 1,587 Trader Rating: (0)	yea if the seals touch the head then the guides are not in all the way. __________________ 240SXONE www.240SXMOTORING.com --- One Stop Shop for Your Nissan 240sx http://site.240sxmotoring.com/images..._motoring3.gif

10-03-2009, 10:06 AM	#7
jspaeth Zilvia FREAK! Join Date: Mar 2006 Location: South Jersey Age: 25 Posts: 1,147 Trader Rating: (0) Rides Gallery: jspaeth	Beautiful, fellas. Thank you for the clear and concise responses. The other reason I was paranoid, was that they were SO hard to get off, I thought they would be way tighter and harder to get on! __________________ Picture Me Rollin'

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10-02-2009, 11:02 PM	#2
om3ga Zilvia Junkie Join Date: Jan 2007 Location: Up and Down! California Posts: 342 Trader Rating: (1)	Got any pics?

10-02-2009, 11:50 PM	#4
speedfiend Zilvia Junkie Join Date: Feb 2002 Location: Destin, Fl./Houston, Tx. Age: 24 Posts: 495 Trader Rating: (7)	yeah man you will be fine. the stock ones that i just pulled off my head had a small gap like that. im almost positive that they arent supposed to sit flush. Just my .02. Cameron

10-03-2009, 06:57 AM	#5
garagelu Zilvia Addict Join Date: Aug 2005 Location: Birmingham, AL Age: 24 Posts: 933 Trader Rating: (13)	you will be fine. They don't seat all the way down. Just make sure the seal "snaps" into the groove on the valve guide.