Cam install gone COMPLETELY wrong. need a little help...

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Shift__BODOM
Posts: 168
Joined: Thu Oct 07, 2004 1:48 pm
Car: 1993 240SX Hatch

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hmm, i just swapped my old '93 cams into my new '96 motor, and i've run across a few problems. that image is my '96 cams before i attacked them. i dont have an after pic, but i can tell you that the '93 cams don't look exactly like that...

the cams at TDC on cyl #1 with the old '93 cams installed don't point exactly outwards like the other ones did, but point slightly more at an upward angle from the center. this is the only way to angle them so that the valves are all closed. i think that with this setup the intake cam is slightly advanced, and the exhaust cam is slightly retarted by a tooth on the cam gears or a few degrees. with the #1 cyl. lobes pointing out like they should be at TDC, the #3 cyl intake valves and #2 cyl exhaust valves are depressed slightly. i wish i had a picture of the cams the way they are now. btw both cam sprockets are stock, non adjustable ones. i just need to confirm that the cams are off timing...and what about those valves being pushed down slightly? is that a problem or should i focus on putting #1 cyl cams at TDC?

AAAH! HELP!



s13sr20chris
Posts: 4148
Joined: Tue Jun 10, 2003 9:32 am
Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
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do you have them mixed up left to right?

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Shift__BODOM
Posts: 168
Joined: Thu Oct 07, 2004 1:48 pm
Car: 1993 240SX Hatch

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hey all, i figured out the problem...had the intake cam off by a tooth on the sprocket. fixed it, and it un****ed itself. woo! go team!

runs perfect now, so nevermind. thanks for the help!

s13sr20chris
Posts: 4148
Joined: Tue Jun 10, 2003 9:32 am
Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
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glad to hear it bro. thats what i do. i patronize folks and hope they fix it themselves! j/kdoes it feel faster?

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Shift__BODOM
Posts: 168
Joined: Thu Oct 07, 2004 1:48 pm
Car: 1993 240SX Hatch

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haha! well, thanks for the patronization! yeah, its got more balls now. worth all the trouble...


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