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Dear Z friends,my f.sm. says adjust the valves on my 280z at 20(cold)intake and 25(cold)exhaust but all the articles I see on adjusting is 10 (intake) and 12(exhaust).I just want to make sure that I am correct.THANKS,ROBERT
 

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I have looked on that website but I am trying to figure out why the datsun service manual for that year says 20 and 25
 

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.010" and .012" are hot settings. The settings you posted are metric.
 

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I originally adjusted mine cold....but went back and re did them... hot. Its a bitch...but I think its better. That was done in April.... a couple of weeks ago Mike came for a few days and double checked the adjustments on my valves. They were perfectly adjusted... so I would have to say its better to do them hot......


Elaine


1975 280Z
 

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ahhh... so we just get them started with the cold adjustment... So I actually did right! But I did it cause I wasnt comfortable with them done cold...... bet you or Kammy told me to redo it hot. Its really not that difficult either...
 

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haha!!! Doubt that! But thanks! I sort of felt they were right on.....thanks again! So, Robert... Best of luck with your Z!
 

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mixed up metric and english measurements! You should work for NASA. They mixed up metric and english force units and missed Mars with one of their probes a year or so ago....And to think we were gonna let Hillary create a federal health care system......
 

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since ive never done a z valve adjustment ill have to do it cold just to make sure i know what the heck im doing! ive always adusted my other cars with engine running and its SO much easier that way!
 
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