Question about 1991 Honda Civic
I have a 1991 honda civic hatchback 1.5 engine that stopped running suddenly. The camshaft sprocket sheared from the camshaft and the camshaft nolonger turns (obviously). My questions are: 1. Is there any way the valves are not bent? 2. What could have caused this? The timing belt looks good and the previous owner was a mechanic who changed the belt himself. Any ideas??
One psooibility to this is that there was insufficient oil going to the cam bearings and the camshaft seized. The oil galleries in the head could be plugged therefore not supplying oil to the cam bearings.
There is a posibility that the valves are not bent but you would have to check them carefully. that could be checked out when thw head is machined because if the cam seized you'll have to take the head off and have it serviced.( cam bearing seats machined and oil galleries cleared. Hope this helps you out
Posted on Jan 23, 2009
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Posted on Jan 02, 2017
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If any binding is felt when adjusting the timing belt tension by turning the crankshaft, STOP turning the engine, because the pistons may be hitting the valves.
Never allow antifreeze, oil or solvents to come into with a timing belt. If this occurs immediately wash the solution from the timing belt. Also, never excessive bend or twist the timing belt; this can damage the belt so that its lifetime is severely shortened.
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