Toro Reelmaster 6500–D Service Manual page 47

Noisy Engine
Problem
Knocking
Whistling, blowing
Reelmaster 6500-D/6700-D
Possible Causes
Loose main bearings
Broken part
Leakage return collector clogged
Lifters out of adjustment
Foreign matter in a cylinder
Seized injector
Injection pump timing
Sheared glow plug
Timing out of adjustment
Leaking cylinder head gasket
Leaky glow plug
Valve seats
Leaky injector
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