timing

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silvia_ca18det
Posts: 179
Joined: Fri Aug 12, 2005 6:32 am
Car: 350whp ca18det drift silvia

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ok so i did the timing chain once allready the motor wasnt sitting on the motor mounts so i adjusted it and it kinda fell into place! not hard but yeah, now i went to start the car and it get way to much fuel, its got z32 and 550s and a tune for it! i took off the valve cover and the timing marsk are off 4 teeth on the cams! my question is did the gears all slip? i set everything right when i stuck the timing chaine in the first time! and i dont think that the motor being bounced around that hard would even mess with the timing chain?

thanks


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Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

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are you absolutely certain you had the marks lined up properly when you put the chain in the first time? it's impossible for the chain to jump teeth unless you didn't put the tensioner in and started spinning the crank and chain around.

silvia_ca18det
Posts: 179
Joined: Fri Aug 12, 2005 6:32 am
Car: 350whp ca18det drift silvia

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i am 100% certain that it was lined up! i dunno wtf happened`

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Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

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do you have aftermarket gears or stock cam gears?

silvia_ca18det
Posts: 179
Joined: Fri Aug 12, 2005 6:32 am
Car: 350whp ca18det drift silvia

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there is stock gears! ok here, i re did timing chain but before i threw it all back together i hand turned the motor and then after 1 rotation the marks where off....4 teeth, is that supposed to happen? does this happen cuz of the slack in the timing chain before rotation?

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SpeedRacer1
Posts: 3144
Joined: Fri Jul 26, 2002 7:44 pm
Car: 1990 240SX, G35

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It is normal for the marks to be off. The marks are only dead on at top dead center. For the next 15-20 rotations it will be off. Then it will come back again and the marks will be on.

silvia_ca18det
Posts: 179
Joined: Fri Aug 12, 2005 6:32 am
Car: 350whp ca18det drift silvia

Post

thankyou very much! so i ripped this apart for nothing! now i need to figure out my fuel problem!

thanks speedracer!


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