my zc has got an bad miss only at 4500 rpm?if i'm accelerating it will jump and lose power there and now in the 1/4 mile i'm losing 3 mph i cant figure out whats wrong,i changed the plugs wires,dizzy cap,and the rotor button,can anyone help?

 

have you tried doing a valve adjustment? my gsr used to skip out around 2500 and 3000 rpms. once i had the valve adjustment done :thanks tbone: it ran perfect. lost all hesitation and she just ripped after that.

give it a shot.

 

ok i looked around would you happen to know the tourque specs for the zc valves?

 

i would look them up for a 89 integra ls. they have the same motor except the zc has different cams and compression. if i remember correctly.

same d16 motor

 

CYLINDER HEAD
Material -- Light Alloy
Thickness
New -- 132.0mm (5.20in)
Minimum after resurfacing -- 131.8mm (5.19in)
Maximum surface distoration -- 0.05mm (0.002in)
Valve seat angle -- 45O
Valve seat width (both intake and exhaust)
Minimum -- 1.25-2.00mm (0.049-0.08in)
Max -- 2.0mm (0.08in)
VALVES
Stem diameter
Intake -- 6.55-6.59mm (0.258-0.2594in)
Exhaust -- 6.52-6.56mm (0.257-0.2583in)
Stem-to-guide clearance
Intake -- 0.02-0.08mm (0.001-0.003in)
Exhaust -- 0.05-0.11mm (0.002-0.004in)
Valve clearance
Intake -- 0.13-0.17mm (0.0051-0.0067in)
Exhaust -- 0.15-0.19mm (0.0059-0.0075in)
Valve spring free length
Intake -- 44.8-45.8mm (1.76-1.80in)
Exhaust -- 46.1-47.1mm (1.81-1.85in)

 

thanks alot helped me out

 

well i figured it out it was the fuel filter