Need help identifying an ?engine? noise..
Folks - need to help isolating a possible engine noise.
Sounds like tapping a piece of sheet metal with a hammer (gently). It is intermittent, kind of comes and goes.
Sounds like it is coming from front of engine, loudest when you listen directly in front of radiator.
I removed fan belt and it stopped.
Water pump seems fine, fan is tight and there is no side play in end bearing. In/out play is about .010". Bearings feel fine.
Generator does not have any play, though the rear bearing has a squeak and it cannot be lubricated externally - heard it using a stethoscope.
Crank pulley is tight and runs true.
In fact all pulleys run true.
Only suspicious thing I noticed is that I needed to slightly lift motor to slip v belt back over crank pulley - guess my front mount springs have sagged slightly.
After putting the v belt back on the sound went away for a while (couple minutes), then reappeared.
Can not isolate it with stethoscope - but definitely sounds like tapping on sheet metal with hammer. Not continuous tapping, but an intermittent tapping: tap tap pause pause pause tap pause pause tap tap tap pause pause pause pause tap ......
Anyone have any clues??
Thanks,
Scott
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