Quote:
Originally Posted by efhughes3
30k since last valve adjust? I don't know the 964 specs, that seems awfully long ago.
Short of any glaring issue, that would have been the first thing TO do, IMO. Then, if noise persists, post for help.
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I know, it's long overdue, so I went ahead and did the valve clearance check. Cylinder #4 exhaust is too loose and intake too tight. I put it to spec at 0.004" traditional method.
All head studs still intact. No broken studs or falling off nuts.
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I will go ahead and change the spaark plugs and change the oil.
If noise persists, I will open the chain box.
A few pics.
Spark plugs 123 upper
Rockers 123
Spark plugs 456 upper
Rockers 456
