Nissan Engine >> SEIZED CAMSHAFTS
Nissan Engine >> SEIZED CAMSHAFTS
Seized Camshafts On
Nissan SOHC VG30 3.0L Engines
AERA has received reports of sudden camshaft seizures on Nissan SOHC VG30 3.0L engines. This seizure is uncommon because the cause of the failure is a broken cylinder head bolt. The head of the bolt breaks off and then becomes lodged under one of the cam lobes, resulting in the timing belt either breaking or stripping.
If this type of failure occurs, removal of valve covers will reveal that the bolt head is lodged underneath the camshaft. Further engine disassembly is now necessary as this is a non-freewheeling engine. Bent valves can be encountered on both cylinder banks, even if only one camshaft as seized.
For additional information see AERA Technical Bulletin: TB 601 &
TB 653
The AERA Technical Committee
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