i have a 2003 S2000(silver).. i got my head back from the machine shop and noticed my valve springs were all over the place(up side down) the colors were mixed up as well.. i have Yellow and Blue on my springs. im trying to figure out which color goes were?? The guy at the machine shop doesnt no much about Japanessee cars he does more work on muscle cars then anything.. After $526.00 i have takin all my valve spring off to put them in the rite places again i have YELLOW and BLUE on my springs..

 

Yellows are AP1 intake and Blues are AP1 exhaust springs.

 

Sounds like a bad machine shop.

 

Ummm If it were me I wouldn't take my head to a place that doesn't know much about the motor.

 

thats like going to foot doctor for eye surgery...

 

a valve and spring is a valve and spring. you think he would be able to figure it out. I wouldnt wanna use that head, who knows what else he did wrong!