rocker arm question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

a100pureplayaz · 05-16-2008, 05:10 PM

ok dropped spring shims out of my head on the intake side. found all of them and replaced them and now i put the cam along with caps in and i wanted to know if with the lobe facing up it that rocker arm should have any play or be tight?

Sileighty_85 · 05-16-2008, 06:01 PM

not completely sure what ur asking but...

Its normal for there to be a gap between the rocker arm and cam when the lobe is faceing away

a100pureplayaz · 05-16-2008, 06:05 PM

what is there is no clearince at all like we can't fit the thinnest feeler gauge between?

Sileighty_85 · 05-16-2008, 06:09 PM

are your shims installed on the correct sides?

is it the same on all the rocker arms?

Pics would help

Should look like this

a100pureplayaz · 05-16-2008, 06:13 PM

installed new cams cam caps bolted down no clearence betwee rocker pad and cam lobe.

Sileighty_85 · 05-16-2008, 06:18 PM

Quote:

Originally Posted by a100pureplayaz

installed new cams cam caps bolted down no clearence betwee rocker pad and cam lobe.

now thats normal for there to be no clearance between the LOBE and the rocker arm cuz the LOBE pushed the rocker arm down, then the rocker arm pushes the Valves down

a100pureplayaz · 05-16-2008, 06:22 PM

yes the shims are on the correct side. but even when the cam lobe is facing up there is no clearence between the rocker arm and cam lobe. cannot even fit the smallest feeler gauge in between.

a100pureplayaz · 05-16-2008, 07:21 PM

anything at all im waiting to put the motor back in the car just dont want to risk anything i cranked the motor by hand and everything SEEMED to be going smooth and nothing looked like it was rubbing anything please?

boogerlovers · 05-16-2008, 07:33 PM

there isnt supposed to be any clearance because the rocker clearances are self adjusting, cause sr's have hydraulic lifters...

*fliprayzin240sx* · 05-16-2008, 07:49 PM

^^ +1 There is no shimming involved with the SRs hydraulic lifter set up. The whole idea behind it is to be maintenance free as possible. Good idea, just sucked on the execution cuz the way the head is designed. Rocker arms dont like staying where theyre supposed to be when you mis-shift or over rev. Hence why you get a rocker arm stopper, stops it from flying off...

Put the cams and everything else back on per FSM. Hand crank the engine and make sure theres no binding and you should be good to go.

05-16-2008, 05:10 PM	#1
a100pureplayaz Leaky Injector Join Date: Jun 2007 Location: new york Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	rocker arm question ok dropped spring shims out of my head on the intake side. found all of them and replaced them and now i put the cam along with caps in and i wanted to know if with the lobe facing up it that rocker arm should have any play or be tight?

05-16-2008, 06:01 PM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	not completely sure what ur asking but... Its normal for there to be a gap between the rocker arm and cam when the lobe is faceing away __________________ 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

05-16-2008, 06:09 PM	#4
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	are your shims installed on the correct sides? is it the same on all the rocker arms? Pics would help Should look like this __________________ 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

05-16-2008, 07:33 PM	#9
boogerlovers Zilvia FREAK! Join Date: Jun 2007 Location: Palmdale Age: 36 Posts: 1,082 Trader Rating: (8) Feedback Score: 8 reviews	there isnt supposed to be any clearance because the rocker clearances are self adjusting, cause sr's have hydraulic lifters... __________________

05-16-2008, 07:49 PM	#10
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	^^ +1 There is no shimming involved with the SRs hydraulic lifter set up. The whole idea behind it is to be maintenance free as possible. Good idea, just sucked on the execution cuz the way the head is designed. Rocker arms dont like staying where theyre supposed to be when you mis-shift or over rev. Hence why you get a rocker arm stopper, stops it from flying off... Put the cams and everything else back on per FSM. Hand crank the engine and make sure theres no binding and you should be good to go. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

05-16-2008, 06:05 PM	#3
a100pureplayaz Leaky Injector Join Date: Jun 2007 Location: new york Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	what is there is no clearince at all like we can't fit the thinnest feeler gauge between?

05-16-2008, 06:13 PM	#5
a100pureplayaz Leaky Injector Join Date: Jun 2007 Location: new york Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	installed new cams cam caps bolted down no clearence betwee rocker pad and cam lobe.

05-16-2008, 06:22 PM	#7
a100pureplayaz Leaky Injector Join Date: Jun 2007 Location: new york Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	yes the shims are on the correct side. but even when the cam lobe is facing up there is no clearence between the rocker arm and cam lobe. cannot even fit the smallest feeler gauge in between.

05-16-2008, 07:21 PM	#8
a100pureplayaz Leaky Injector Join Date: Jun 2007 Location: new york Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	anything at all im waiting to put the motor back in the car just dont want to risk anything i cranked the motor by hand and everything SEEMED to be going smooth and nothing looked like it was rubbing anything please?