Can somebosy give me a how-to on setting timing? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tearlessj · 07-12-2008, 01:19 PM

This is for redtop btw. I have read two different things. Some people have had to mess with the TPS, others have not.

Heres what Im doing,

Set my CAS,
Start and let car warm up
Hook up timing light
Turn the CAS til the needle matches up to the second to last mark on the pulley.

Do I have to warm up the car and disconnect the TPS THEN do the timing?

Thanks for the help.

burnsauto · 07-12-2008, 01:24 PM

•start engine
•let it warm up
•hook up timing light on cyl number one (some use the little wire hook on the back on the harness, I've used the entire part of the harness for cyl 1 before with no problems.)
•unplug tps
•set timing to 15º behind top dead center, second mark from the right on the crank pulley.

Tearlessj · 07-12-2008, 01:39 PM

Hmm so I guess disconnecting the TPS makes a difference. I will do this, just curious though. What difference does it make?

Koopa Troopa · 07-12-2008, 01:48 PM

Quote:

Originally Posted by Tearlessj

This is for redtop btw. I have read two different things. Some people have had to mess with the TPS, others have not.

Heres what Im doing,

Set my CAS,
Start and let car warm up
Hook up timing light
Turn the CAS til the needle matches up to the second to last mark on the pulley.

Do I have to warm up the car and disconnect the TPS THEN do the timing?

Thanks for the help.

Dude, that's not the CAS, that's the crank pulley...

Tearlessj · 07-12-2008, 02:14 PM

Im talking about setting the CAS, like TDC the motor and install it. I can see what you mean though. It did sound that way.

cotbu · 07-12-2008, 06:40 PM

unplugging the tps, stops the ecu from adjusting the timing, revving the engine to 3grand help locks the ecu in timing mode.

If, your mark is still jumping around, try revving to 3krpm 3times then let idle; set timing.

Dutchmalmiss · 02-11-2009, 12:24 AM

When you guys are saying 2nd from the right on the crank pulley, is that facing the motor, or facing outward from the motor?

cotbu · 02-11-2009, 07:34 AM

usually lol when you set the timing you have to look at the motor.
So looking at the pulley, left -5 0 5 10 15 20 right

Teambadrun · 02-11-2009, 08:47 AM

How To Set Crank Angle Sensor (CAS) Timing on the SR20DET Engine

That is EVERYTHING you need to know

it's second last marking on the pully 15DEG.

Dutchmalmiss · 02-11-2009, 10:24 AM

Now I'm lost. That link shows the pulley showing the tick mark being the second from the LEFT. The first few posts in this thread say second from the RIGHT.

Este510 · 02-11-2009, 10:41 AM

That link is to set it top dead center, so if your adjusting your timing disreguard that link.

moses · 02-11-2009, 10:46 AM

So TDC is on the 0 mark (second from left) and timing at 15 degrees is the second from the right.

Teambadrun · 02-11-2009, 02:04 PM

The link is correct. Just read it first.

Replace the screws & plug in your CAS. Start your engine and let it warm up to normal operating temperature. After warmup, your engine should be idling around 850rpm - check your timing with a timing gun. Stock factory timing is at 15 degrees, which is the 2nd to last mark on the crank pulley.

alkemyst · 02-12-2009, 11:22 AM

Quote:

Originally Posted by cotbu

usually lol when you set the timing you have to look at the motor.
So looking at the pulley, left -5 0 5 10 15 20 right

I know what that guy meant...you can look from above directly down on the pulley or from the side...I took mine to a tuner even and he wasn't sure.

The angle between both views could be enough for up to 5deg of timing.

I do mine from above and the front of the car.

obsolete · 03-17-2009, 07:26 PM

bumping most recent post.

just used a timing light for the first time. it's a digital one with advance and stuff. I am having trouble with this thing. here's what i did, (note: i did the frsport write up first for TDC, s14 sr)

1. warm up engine
2. unplug TPS
3. reved engine to 3k rpm few times
4. hooked up timing light
now, i pointed at the crank and it kept flashing at 0 deg. then, i turned the CAS to the right to advance the timing, but the idle would rise and the light would stop flashing. so i turn it back left and the idle would go down and flash at 0 deg again. what is going on?

next, i tried advancing the setting on the light to 15 deg and the light would flash where there is no marking. when i turn the CAS, the idle would go up again and thelight would not flash.

what am i doing wrong? sorry if it's confusing

07-12-2008, 01:19 PM	#1
Tearlessj Nissanaholic! Join Date: Feb 2007 Location: Memphis Age: 33 Posts: 1,907 Trader Rating: (6) Feedback Score: 6 reviews	Can somebosy give me a how-to on setting timing? This is for redtop btw. I have read two different things. Some people have had to mess with the TPS, others have not. Heres what Im doing, Set my CAS, Start and let car warm up Hook up timing light Turn the CAS til the needle matches up to the second to last mark on the pulley. Do I have to warm up the car and disconnect the TPS THEN do the timing? Thanks for the help. __________________ Nagasaki Motors Friends help you move. Real friends help you move bodies.

07-12-2008, 01:24 PM	#2
burnsauto Post Whore! Join Date: Dec 2006 Location: 717, PA Age: 39 Posts: 3,324 Trader Rating: (6) Rides Gallery: burnsauto Feedback Score: 6 reviews	•start engine •let it warm up •hook up timing light on cyl number one (some use the little wire hook on the back on the harness, I've used the entire part of the harness for cyl 1 before with no problems.) •unplug tps •set timing to 15º behind top dead center, second mark from the right on the crank pulley. __________________

07-12-2008, 01:39 PM	#3
Tearlessj Nissanaholic! Join Date: Feb 2007 Location: Memphis Age: 33 Posts: 1,907 Trader Rating: (6) Feedback Score: 6 reviews	Hmm so I guess disconnecting the TPS makes a difference. I will do this, just curious though. What difference does it make? __________________ Nagasaki Motors Friends help you move. Real friends help you move bodies.

07-12-2008, 02:14 PM	#5
Tearlessj Nissanaholic! Join Date: Feb 2007 Location: Memphis Age: 33 Posts: 1,907 Trader Rating: (6) Feedback Score: 6 reviews	Im talking about setting the CAS, like TDC the motor and install it. I can see what you mean though. It did sound that way. __________________ Nagasaki Motors Friends help you move. Real friends help you move bodies.

07-12-2008, 06:40 PM	#6
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	unplugging the tps, stops the ecu from adjusting the timing, revving the engine to 3grand help locks the ecu in timing mode. If, your mark is still jumping around, try revving to 3krpm 3times then let idle; set timing. __________________ LoverTechnologies "Half Broken Things!"

02-11-2009, 12:24 AM	#7
Dutchmalmiss Post Whore! Join Date: Apr 2003 Location: Socal (323) Age: 39 Posts: 3,501 Trader Rating: (14) Feedback Score: 14 reviews	When you guys are saying 2nd from the right on the crank pulley, is that facing the motor, or facing outward from the motor? __________________ Pignose, biaaatch.

02-11-2009, 07:34 AM	#8
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	usually lol when you set the timing you have to look at the motor. So looking at the pulley, left -5 0 5 10 15 20 right __________________ LoverTechnologies "Half Broken Things!"

02-11-2009, 08:47 AM	#9
Teambadrun Zilvia Addict Join Date: Jan 2007 Location: Melbourne,Australia Age: 46 Posts: 642 Trader Rating: (1) Feedback Score: 1 reviews	How To Set Crank Angle Sensor (CAS) Timing on the SR20DET Engine That is EVERYTHING you need to know it's second last marking on the pully 15DEG. __________________

02-11-2009, 10:24 AM	#10
Dutchmalmiss Post Whore! Join Date: Apr 2003 Location: Socal (323) Age: 39 Posts: 3,501 Trader Rating: (14) Feedback Score: 14 reviews	Now I'm lost. That link shows the pulley showing the tick mark being the second from the LEFT. The first few posts in this thread say second from the RIGHT. __________________ Pignose, biaaatch.

02-11-2009, 10:41 AM	#11
Este510 Zilvia Member Join Date: Aug 2006 Location: Cali Age: 44 Posts: 214 Trader Rating: (2) Feedback Score: 2 reviews	That link is to set it top dead center, so if your adjusting your timing disreguard that link.

02-11-2009, 10:46 AM	#12
moses Zilvia Junkie Join Date: Mar 2005 Location: Jacksonville, ar Age: 38 Posts: 555 Trader Rating: (2) Rides Gallery: moses Feedback Score: 2 reviews	So TDC is on the 0 mark (second from left) and timing at 15 degrees is the second from the right. __________________ Thats what I said

02-11-2009, 02:04 PM	#13
Teambadrun Zilvia Addict Join Date: Jan 2007 Location: Melbourne,Australia Age: 46 Posts: 642 Trader Rating: (1) Feedback Score: 1 reviews	The link is correct. Just read it first. Replace the screws & plug in your CAS. Start your engine and let it warm up to normal operating temperature. After warmup, your engine should be idling around 850rpm - check your timing with a timing gun. Stock factory timing is at 15 degrees, which is the 2nd to last mark on the crank pulley. __________________

03-17-2009, 07:26 PM	#15
obsolete Zilvia Addict Join Date: Aug 2003 Location: NJ Age: 45 Posts: 717 Trader Rating: (8) Feedback Score: 8 reviews	bumping most recent post. just used a timing light for the first time. it's a digital one with advance and stuff. I am having trouble with this thing. here's what i did, (note: i did the frsport write up first for TDC, s14 sr) 1. warm up engine 2. unplug TPS 3. reved engine to 3k rpm few times 4. hooked up timing light now, i pointed at the crank and it kept flashing at 0 deg. then, i turned the CAS to the right to advance the timing, but the idle would rise and the light would stop flashing. so i turn it back left and the idle would go down and flash at 0 deg again. what is going on? next, i tried advancing the setting on the light to 15 deg and the light would flash where there is no marking. when i turn the CAS, the idle would go up again and thelight would not flash. what am i doing wrong? sorry if it's confusing