Generac — Timing Belt Removal
Repair & overhaul
From a Generac service manual covering: IM100G, IM80G, NP100G, NP80G. Check it applies to your exact model before use.
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Before you start
- Once the timing belt has been removed, DO NOT rotate the crankshaft and camshaft separately or the valves will strike the piston heads.
Procedure
- Drain the radiator.
- Remove the radiator, fan guard and fan.
- Remove tension from the drive belt, then remove the drive belt.
- Remove the crankshaft pulley.
- Set No. 1 cylinder at TDC of its compression stroke. Remove upper and lower dust covers and gaskets.
- Loosen timing belt tensioner and return spring, then remove timing belt.
Source: Generac 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.