Perkins 1106 — Idler Gear - Install (Standard Idler Gear)
Repair & overhaul
For the Perkins 1106, from the Perkins service manual.
Applies to: Perkins 1106, Perkins 1106D engine
Before you start
- Ensure timing marks are aligned before removing timing pins
Procedure
- Ensure number one piston is at top dead center on compression stroke.
- Ensure camshaft timing pin is installed in camshaft gear.
- Ensure crankshaft timing pin is installed to lock the crankshaft.
- Clean and inspect idler gear and hub; replace if worn or damaged.
- Lubricate hub with clean engine oil; slide hub into idler gear with timing marks toward front.
- Align the idler gear timing mark with the camshaft gear mark; install assembly with oil hole at top.
- Clean and inspect plate; lubricate and install in original orientation.
- Install bolts.
- Remove timing pins ensuring marks are aligned.
- Install plug to cylinder block.
- Tighten bolts (1) to 44 N·m.
- Check idler gear end play and backlash with feeler gauges.
- Lightly lubricate all gears with clean engine oil.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 44 N·m (32 lb ft) bolts
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.