Strange cas alignment sr - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

thesandman6 · 10-05-2011, 09:14 AM

So I been helping a friend put his sr back together after he took it apart to put in arp head studs and a new head gasket. While resetting the timing, the car wouldn't run at all with the cas set per fsm instructions, but runs when the cas is installed roughly 90° ccw from the alignment dot. The cas is brand new also. Anyone ever run into an issue like this before?

Sileighty_85 · 10-05-2011, 11:23 AM

Cam Timing is probably wrong

thesandman6 · 10-06-2011, 06:38 AM

Cam timing is good, 20 rollers between marks, was checked about 10 times, and the motor puts out 150 compression on all cylinders.

vas570sx · 10-06-2011, 06:56 AM

Quote:

Originally Posted by thesandman6

Cam timing is good, 20 rollers between marks, was checked about 10 times, and the motor puts out 150 compression on all cylinders.

i had a problem like this a long time ago.. i just ran the motor with the timing lookin all weird, but it ran good, so i didn't care. I know this doesnt help, just lettin you know.

Seen · 10-06-2011, 07:30 AM

A friend of mine had his CAS set just like yours and when we pulled the motor apart we found out the cam timing was off 1 tooth.

codyace · 10-06-2011, 07:46 AM

Chain is off, or you weren't at TDC when you set it.

obsolete · 10-06-2011, 08:20 AM

Quote:

Originally Posted by codyace

Chain is off, or you weren't at TDC when you set it.

If it was a case where your weren't TDC when setting it, would the car still run fine, but have low compression?

10-05-2011, 09:14 AM	#1
thesandman6 Join Date: Aug 2005 Location: cocoa florida Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	Strange cas alignment sr So I been helping a friend put his sr back together after he took it apart to put in arp head studs and a new head gasket. While resetting the timing, the car wouldn't run at all with the cas set per fsm instructions, but runs when the cas is installed roughly 90° ccw from the alignment dot. The cas is brand new also. Anyone ever run into an issue like this before?

10-05-2011, 11:23 AM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Cam Timing is probably wrong __________________ 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

10-06-2011, 07:46 AM	#6
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 39 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	Chain is off, or you weren't at TDC when you set it. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

10-06-2011, 06:38 AM	#3
thesandman6 Join Date: Aug 2005 Location: cocoa florida Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	Cam timing is good, 20 rollers between marks, was checked about 10 times, and the motor puts out 150 compression on all cylinders.

10-06-2011, 07:30 AM	#5
Seen Zilvia Member Join Date: Feb 2011 Location: Tampa, FL Age: 32 Posts: 158 Trader Rating: (8) Feedback Score: 8 reviews	A friend of mine had his CAS set just like yours and when we pulled the motor apart we found out the cam timing was off 1 tooth.