question about valves on KA24de - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

makoto · 02-06-2005, 02:41 PM

i was wondering if there was any true specific order to the little covers taht cover the valvesprings....if certain ones belonged to a certain valve...or are the all universal and jsut the cams do the work?

umm here is a pic of wat im looking at....

**ThatGuy** · 02-06-2005, 02:43 PM

They are shims, and they are valve specific. hope you didn't mix and match them.

ledzeppelin240 · 02-06-2005, 05:12 PM

The top part is a retainer, or a rotator. It is not a shim, the shims go on the machined part where the spring sits. You should most likely not mix them up but it shouldn'tcause any problems.

makoto · 02-06-2005, 10:20 PM

hmm how do we know where to put it it back..???oh god.....im scared....lol.....but seriously what if we got new ones...??? how would we know...there are no markings.....

Ritz S14 · 02-06-2005, 10:39 PM

When you buy 24eggs... Use the egg carriage and label the lil boxes 1-24..that way when you remove yoru caps, you already have them ordered and ready to go during the install.

ledzeppelin240 · 02-06-2005, 10:50 PM

The exhaust valve will sometimes have a rotator spring retainer that allows the valve to turn a small degree everytime. I'm not sure if that's how it is done on our engines. Otherwise they are all the same.

makoto · 02-07-2005, 09:08 PM

okok i just realy need to know cuz they felll out. what is the moter going to do if they are in the wrong place........ another thing are the intake any diffrent than the exaust ones.

vtotech · 02-07-2005, 10:00 PM

place them back in any order, then when the head is completely back to gether you have to turn the cams and measure the valve lift. (i dont know how far the valve are acually suppost to move) but if everything fits tight and there is no slack and everythng seem to fit tight your ok, and no i dont believe the shims are different for intake and exhaust. you should call nissan and get a manual that is specific for the year 240 you have, it will cost you 60 bucks but it tells you everything about that motor.

PinkPanther · 02-07-2005, 10:20 PM

You need to set the engine at top dead center for no.1 cylinder and set the lash using shims under the lifters with the cams installed for the front four valves at the specific intake and exaust clearances specified in an FSM. Repeat for the other 3, setting engine at tdc for each. you will need a metric feeler gauge and a lifter compressor and a bunch of shims to do this successfully.

*Jeff240sx* · 02-07-2005, 10:28 PM

Quote:

Originally Posted by PinkPanther

You need to set the engine at top dead center for no.1 cylinder and set the lash using shims under the lifters with the cams installed for the front four valves at the specific intake and exaust clearances specified in an FSM. Repeat for the other 3, setting engine at tdc for each. you will need a metric feeler gauge and a lifter compressor and a bunch of shims to do this successfully.

Yep. Fucking sucks for you.
-Jeff

02-06-2005, 02:43 PM	#2
ThatGuy Admin Asshole Join Date: Mar 2002 Location: Retired Age: 45 Posts: 20,394 Trader Rating: (0) Rides Gallery: ThatGuy Feedback Score: 0 reviews	They are shims, and they are valve specific. hope you didn't mix and match them. __________________ "Speak softly,..." -Pres. Teddy Roosevelt "Be polite, be professional, ..." -Gen. James Mattis

02-06-2005, 05:12 PM	#3
ledzeppelin240 Zilvia Addict Join Date: Sep 2003 Location: Sinse Posts: 688 Trader Rating: (0) Feedback Score: 0 reviews	The top part is a retainer, or a rotator. It is not a shim, the shims go on the machined part where the spring sits. You should most likely not mix them up but it shouldn'tcause any problems. __________________ Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power. Looking for: JDM S13 OEM Sideskirts

02-06-2005, 10:50 PM	#6
ledzeppelin240 Zilvia Addict Join Date: Sep 2003 Location: Sinse Posts: 688 Trader Rating: (0) Feedback Score: 0 reviews	The exhaust valve will sometimes have a rotator spring retainer that allows the valve to turn a small degree everytime. I'm not sure if that's how it is done on our engines. Otherwise they are all the same. __________________ Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power. Looking for: JDM S13 OEM Sideskirts

02-06-2005, 10:20 PM	#4
makoto Join Date: Jan 2005 Location: san antonio texas Age: 37 Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	hmm how do we know where to put it it back..???oh god.....im scared....lol.....but seriously what if we got new ones...??? how would we know...there are no markings.....

02-06-2005, 10:39 PM	#5
Ritz S14 Post Whore! Join Date: Jul 2004 Location: C A L I F O R N I A Age: 43 Posts: 3,586 Trader Rating: (0) Feedback Score: 0 reviews	When you buy 24eggs... Use the egg carriage and label the lil boxes 1-24..that way when you remove yoru caps, you already have them ordered and ready to go during the install.

02-07-2005, 09:08 PM	#7
makoto Join Date: Jan 2005 Location: san antonio texas Age: 37 Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	okok i just realy need to know cuz they felll out. what is the moter going to do if they are in the wrong place........ another thing are the intake any diffrent than the exaust ones.

02-07-2005, 10:00 PM	#8
vtotech Join Date: Feb 2005 Location: arlington tx Age: 38 Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	place them back in any order, then when the head is completely back to gether you have to turn the cams and measure the valve lift. (i dont know how far the valve are acually suppost to move) but if everything fits tight and there is no slack and everythng seem to fit tight your ok, and no i dont believe the shims are different for intake and exhaust. you should call nissan and get a manual that is specific for the year 240 you have, it will cost you 60 bucks but it tells you everything about that motor.

02-07-2005, 10:20 PM	#9
PinkPanther Zilvia Junkie Join Date: Oct 2004 Location: Johnston City, IL Age: 38 Posts: 372 Trader Rating: (3) Feedback Score: 3 reviews	You need to set the engine at top dead center for no.1 cylinder and set the lash using shims under the lifters with the cams installed for the front four valves at the specific intake and exaust clearances specified in an FSM. Repeat for the other 3, setting engine at tdc for each. you will need a metric feeler gauge and a lifter compressor and a bunch of shims to do this successfully.