Perkins 1106 — Crankshaft - Install
Repair & overhaul
For the Perkins 1106, from the Perkins service manual.
Applies to: Perkins 1106, Perkins 1106D engine
Before you start
- If crankshaft reground or replaced, inspect piston height above cylinder block
Procedure
- Clean and inspect crankshaft; recondition or replace if necessary.
- Install crankshaft gear and new crankshaft timing ring if necessary.
- Ensure parent bores and main bearing bolt threads are clean.
- Clean and inspect main bearing shells and thrust washers.
- Install upper main bearing shells; seat locating tabs; lubricate.
- Lift crankshaft into cylinder block (approx 61 kg).
- Lubricate and install thrust washers into number six main bearing; seat locating tabs.
- Install lower main bearing shells into caps; seat locating tabs.
- Lubricate lower shells and journals; install main bearing caps.
- Lubricate bolt threads and heads; install bolts.
- Tighten bolts to 80 N·m; turn an additional 90 degrees.
- Rotate crankshaft to ensure no binding.
- Check crankshaft end play, permissible 0.10 mm to 0.41 mm.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 80 N·m (59 lb ft) plus 90 degrees
- crankshaft end play 0.10 to 0.41 mm
- crankshaft weight approx 61 kg (134.5 lb)
Full service-parts list: Perkins 1106 →, Perkins 1106D engine →
Source: Perkins 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.