Jeep Engines - Oljeep

200 MOPAR PERFORMANCE PARTSIIJeep 4.0L Valve Spring Retainer Specifications ChartIRetainer MaterialSingle-Std.P45292 17 Steel 8 mm ConicalJeep 4 and 6 Cylinder Engine Keepers (Locks)Part NumberP4S292 18Valve Stem Size Angle Hardened Groove Use With Retainers Sets8 mm 8” Std. I Single I P4529216, P4529217 I 24 Pieces I10. Install the rocker arms, pivots and bridge at theiroriginal location.11. Tighten the bridge capscrews alternately one turn at atime to avoid damaging the bridge. Tighten thecapscrews to 28.5 Nom (21 ft-lbs) torque.12. Install the cylinder head cover.VALVE SPRING RETAINERS AND KEEPERS(LOCKS)Valve spring retainers are a pretty simple engine part. Theycome in steel, chrome-moly, aluminum, and titanium.Keepers (or locks) are the mating piece between the valvestem and the retainer. The usual design consideration is thenumber of lock grooves on the valve stem- one, two, or three.The valve stem size affects both the keeper and retainer.One specification that hasn’t been mentioned, which affectsboth the keeper and retainer, is the seat angle. For yearswe’ve used 8 degrees as the angle of standard and highperformance keepers and retainers. Other manufacturerscall theirs 7 degrees. There really isn’t any differencebetween these two labels. The actual angle is greater than 7but less than 8. Effectively it’s the same. However, this isn’ttrue of the special IO degree keeper-retainer system. Thetop width of the 10 degree system is much wider than the 7-8 degree system. In either case, keepers and retainers canonly be swapped as a total system. You can’t use 8 degreekeepers with 10 degree retainers or vice versa. Be careful.This isn’t as obvious to spot as it sounds.The retainer should be light and strong. Stock productionsteel retainers are acceptable for most applications. Aserious race engine with a high lift camshaft should usetitanium retainers.Note: NEVER sink the valves deliberately to increase theinstalled height. This results in reduced performance.Mopar Performance Parts valve keepers (locks) are madefroni hardened steel and are available in single and triplegroove styles to meet your application requirements