Valve Spring

Need a step-by-step guide?

Get an AI-powered repair guide with parts lists, cost estimates, and clear instructions for your 1991 Mazda.

AI Repair Guides
Free Length Intake 1.949 Inch (in)
Exhaust 1.984 Inch (in)
Pressure Intake 45.5-51.5 at 1.614 Pound Force At Inch (lbf @ in)
Exhaust 53.9-60.9 at 1.614 Pound Force At Inch (lbf @ in)
Out Of Square Limit 0.067 Inch (in)