John Deere — Measure Cylinder Liner Standout (Height Above Block)
Adjustments · Cylinder liner and block
From a John Deere service manual covering: 4039, 4045, 6059, 6068. Check it applies to your exact model before use.
Applies to: John Deere 4039, John Deere 4045, John Deere 6059, John Deere 6068
Before you start
- ONE LINER SHIM ONLY may be installed under each liner flange. If liner requires more than one shim, install a new liner or cylinder block.
Procedure
- Be sure liner bore in cylinder block and top deck of block are clean.
- Install liner without O-rings and packing; liner should rotate smoothly by hand.
- Locate liner mark toward front of engine; secure with cap screws and washers tightened to 68 N•m (50 lb-ft).
- Using JDG451 or KJD10123 Gauge and D17526CI or D17527CI Dial Indicator, measure liner height at 1, 5, 7 and 11 o'clock positions viewed from flywheel end.
- Record measurements by cylinder number and compare with specification.
- If liner height is no more than 0.08 mm (0.003 in.) below top deck of block, install one liner shim under liner flange.
- Remove and shim or replace any liner that does not meet height specifications.
Tools required
- JDG451 or KJD10123 Height Gauge Amazon
- D17526CI or D17527CI Dial Indicator Amazon
- KCD10001 or JDG1145 Cylinder Liner Puller Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Height 0.030—0.100 mm (0.001—0.004 in.)
- Maximum permissible height difference 0.05 mm (0.002 in.)
- Liner shims 0.05 mm (0.002 in.) and 0.10 mm (0.004 in.)
Full service-parts list: John Deere 4039 →, John Deere 4045 →, John Deere 6068 →
Source: John Deere service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.