John Deere 3029, 4039, 4045, 6059, 6068 — CLEANING INJECTION NOZZLE BORES

Cylinder head and Valves/Cleaning injection nozzle bores CLEANING INJECTION NOZZLE BORES Using special tool JDE39, remove carbon deposits from bores of fuel injection nozzles. IMPORTANT: Always turn the tool clockwise through the bore, even when pulling back. Otherwise tool will get dull. L103626 -UN-18JAN95 Check cooling passages for lime deposits. Clean when necessary, using a suitable cooling system cleaning solution. CD,3274,G05,5 -19-24FEB92 CTM3274 (01JUL99) 05-8 Saran Liter Engines 060799 PN=45 REMOVING CYLINDER HEAD Remove intake and exhaust manifolds. Using special puller JDG716, remove the fuel injection -UN-17FEB95 nozzles. NOTE:

Removal of fuel injection nozzles is necessary to prevent them being damaged when cylinder head is removed. CD30324 NOTE: Before removal, mark all parts so that they can be reinstalled in their original positions. Remove rocker arm shaft. Remove cylinder head cap screws and lift off cylinder head assembly. -UN-07MAR95 NOTE: Do not turn crankshaft after removal of cylinder head until each liner has been secured with a washer and cap screw. L103623 CD,3274,G05,4 -19-24FEB92 05 8