SR20 cam install gone wrong! help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nemesisdrift · 09-20-2013, 09:34 AM

Just to sum up what's going on.

S13 red top developed a small tick in the head, so it was decided lifters needed to be bled.

I zip tied the chain to the sprockets before hand and had the engine at TDC verified by crank pulley mark and a dowel in cylinder 1.

Bled the lifters proper and installed the camshafts.

Went to start the engine again and it cranks but will not catch.

Car has fuel
-40psi on FPR
-injectors click properly
-removed rail and let them fire into a box and all 4 spray properly

Car has spark verified by pulling a plug and ground the plug to the VC and cranking the engine. All 4 coils give healthy spark.

Timing seemed to be spot on with the intake cam dowel at 10 o clock and the exhaust dowel at 12 o clock.

11 links between marks, 20 pins etc etc

CAS is also set right.

I'm running out of things to blame for this.

The car drove right in to the garage.
Help

fullthrottle · 09-20-2013, 10:32 AM

Ground wire on the coilpack harness near the back of the head?

Sent from my HTC One using Tapatalk 2

nemesisdrift · 09-20-2013, 11:17 AM

grounded, Id assume that the coils wouldn't even work if they werent grounded?

koukistylejdm · 09-20-2013, 11:26 AM

try to give it a bit of advance with the cas what kind of cams are they

nemesisdrift · 09-20-2013, 11:31 AM

they're HKS step 1s, i've rotated the cas all the way forward, back, middle and anywhere in between

Mikester · 09-20-2013, 11:39 AM

^^This happened to me when I did a head gasket change back in the day... Weird as it may sound, it took about 25-30 cranks before it 'choked' a few times... then eventually started up. You may want to pull the fuel pump fuse and prime it a bit before going for a start. Anyway... My car ran like dog shit for a few miles... then purred like a kitten- My non-mechanic assumption is that it just took a little while for the the electronics, lifters & whatnot to sorta sync back up.

nemesisdrift · 09-20-2013, 12:00 PM

i've had weird problems like this before where it randomly lost spark in 2 cylinders and that was remedied by cursing at it and pluging everything back in. its just this time there isn't anything that stands out as really wrong.

Danger_Dorn · 10-03-2013, 04:10 PM

I had this problem before. Took me forever to figure it out. Your motor needs to crank alot and fast so either 1. have someone tow you and drop the clutch and start it that way or 2. Jump it to a running car and crank crank crank that bitch. It needs alot of amperage and revs to initially start.

09-20-2013, 09:34 AM	#1
nemesisdrift Zilvia Member Join Date: Apr 2012 Location: in a box Age: 31 Posts: 217 Trader Rating: (1) Feedback Score: 1 reviews	SR20 cam install gone wrong! help! Just to sum up what's going on. S13 red top developed a small tick in the head, so it was decided lifters needed to be bled. I zip tied the chain to the sprockets before hand and had the engine at TDC verified by crank pulley mark and a dowel in cylinder 1. Bled the lifters proper and installed the camshafts. Went to start the engine again and it cranks but will not catch. Car has fuel -40psi on FPR -injectors click properly -removed rail and let them fire into a box and all 4 spray properly Car has spark verified by pulling a plug and ground the plug to the VC and cranking the engine. All 4 coils give healthy spark. Timing seemed to be spot on with the intake cam dowel at 10 o clock and the exhaust dowel at 12 o clock. 11 links between marks, 20 pins etc etc CAS is also set right. I'm running out of things to blame for this. The car drove right in to the garage. Help

09-20-2013, 11:39 AM	#6
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	^^This happened to me when I did a head gasket change back in the day... Weird as it may sound, it took about 25-30 cranks before it 'choked' a few times... then eventually started up. You may want to pull the fuel pump fuse and prime it a bit before going for a start. Anyway... My car ran like dog shit for a few miles... then purred like a kitten- My non-mechanic assumption is that it just took a little while for the the electronics, lifters & whatnot to sorta sync back up. __________________

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09-20-2013, 10:32 AM	#2
fullthrottle Zilvia Addict Join Date: Apr 2009 Location: Saint Louis, MO Age: 34 Posts: 661 Trader Rating: (13) Feedback Score: 13 reviews	Ground wire on the coilpack harness near the back of the head? Sent from my HTC One using Tapatalk 2

09-20-2013, 11:17 AM	#3
nemesisdrift Zilvia Member Join Date: Apr 2012 Location: in a box Age: 31 Posts: 217 Trader Rating: (1) Feedback Score: 1 reviews	grounded, Id assume that the coils wouldn't even work if they werent grounded?

09-20-2013, 11:26 AM	#4
koukistylejdm Zilvia Member Join Date: May 2009 Location: Baie-comeau Qc Age: 34 Posts: 256 Trader Rating: (2) Feedback Score: 2 reviews	try to give it a bit of advance with the cas what kind of cams are they

09-20-2013, 11:31 AM	#5
nemesisdrift Zilvia Member Join Date: Apr 2012 Location: in a box Age: 31 Posts: 217 Trader Rating: (1) Feedback Score: 1 reviews	they're HKS step 1s, i've rotated the cas all the way forward, back, middle and anywhere in between

09-20-2013, 12:00 PM	#7
nemesisdrift Zilvia Member Join Date: Apr 2012 Location: in a box Age: 31 Posts: 217 Trader Rating: (1) Feedback Score: 1 reviews	i've had weird problems like this before where it randomly lost spark in 2 cylinders and that was remedied by cursing at it and pluging everything back in. its just this time there isn't anything that stands out as really wrong.

10-03-2013, 04:10 PM	#8
Danger_Dorn Zilvia Member Join Date: Oct 2012 Location: Jacksonville NC Age: 30 Posts: 265 Trader Rating: (0) Feedback Score: 0 reviews	I had this problem before. Took me forever to figure it out. Your motor needs to crank alot and fast so either 1. have someone tow you and drop the clutch and start it that way or 2. Jump it to a running car and crank crank crank that bitch. It needs alot of amperage and revs to initially start.