D HURRICANE F4 ENGINE B i V V gn A K I 4 ER isl EII il 2 II V V VI v V A A i j 5 Z Yi 7 Z Y I VI I if Ji it L Ei g S lil I gi I it 21 h 2 I I R I izaz I 2 V I l V I I I Iv I iia E I I IIE R I J I e I I I h I iI I I I I an I v if v A It I I I S M IRIIR 2 EI i ifi 3 A F cg jc 7 f v V v V Lf I L 3 j H ji I f j Z 2 g E 5E M V 7 rj 2 E I 5 v g In r f qq w xg E 5 F I V wsu I V 4 67 if FIG D 7 PISTON FITTING FIG D 9 PIsTON PIN FITTING b Check and if necessary correct connecting rod the Piston Pin in th Piston with tl 1 10Ck alignment using a connecting rod aligning fixture Screw gI OOV faciflg dOWn Assemkfle Plsmn to Such as thc cnc Shown in Fig D 8 in acccrdancc connecting rod with the piston skirt T slot on with the instructions furnished with the fixture c Check the piston pin fit The piston pins are M fitted with a clearance of 0001 to 0003 0 0025 N a 0 0076 mm which approximates a light thumb I push fit at room temperature See Fig D 9 The I I A y piston pins are anchored in the rods with lock screws Installation of oversize pins in this engine is not recommended as experience has shown that L V 5 should a pin be worn sufficiently to require replace V ment the piston should also be replaced 2 Clamp the connecting rod in a vise using jaw shields I i I of soft metal or two pieces of hardwood one on c each side of the rod and positioned approximately 3 76 mm from the piston pin end Start l or I 0 I I I i SM 3 l le cI It I i I l I It I i P i l l l I I S I in v 8 f V 5 f rv l N I E 9 I Y cv n W a t n c nc 4 V 7 Q W lggyg J l a 4 Z a 0 9 FIG D 8 g CHEcKING CONNECTING ROD FIG D 10 CONNECTING ROD AND PISTON I ALIGNMENT l Oil Spray Hole 2 Pi ton Skirt T slot l Fee1er Gauge 24Fixture 3 Relative Position of Camshaft 48