Navigator 4WD V8-5.4L DOHC VIN R (2001)
Valve Spring: Specifications
Valve spring compression pressure - intake
667.3 N at 28.02 mm
Valve spring compression pressure - exhaust
667.3 N at 28.02 mm
Valve spring free length - intake
1.9764 in
Valve spring free length - exhaust
1.9764 in
Valve spring installed pressure - intake
289.1 N at 40.01 mm
Valve spring installed pressure - exhaust
289.1 N at 40.0 mm
Valve spring installed pressure service limit - intake
274.6 N at 40.01 mm
Valve spring installed pressure service limit - exhaust 274.6 N at 40.01 mm
Valve spring out of square limit - intake
2.5 deg
Valve spring out of square limit - exhaust
2.5 deg
