Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Valve Spring

DIMENSIONS
Valve Spring Compression Pressure Lbs. @ Specified Height
Intake 71-79 Lbs. @ 1.833 (a) 206-220 Lbs. @ 1.352
Exhaust 71-79 Lbs. @ 1.833 (a) 206-220 Lbs. @ 1.352
Valve Spring Free Length (Approximate)
Intake 52.70 mm +/- 3.8 mm (2.075 In. +/- 0.150 In.)
Exhaust 52.70 mm +/- 3.8 mm (2.075 In. +/- 0.150 In.)
Valve Spring Assembled Height
Intake 44.881 mm (1.767 In.)
Exhaust 46.558 mm (1.833 In.)
Valve Spring Out of Square Maximum 1.981 mm (0.078 In.)

(a) Service limit +/- 8 lbs.