i have been googling my symptoms and a link has thrown me to a twelve year old thread which i think may answer my question.
symptoms: tick from top end when cold when first purchased car. disappeared when warm. squeal that increases with engine speed. one occasion the noise went away. came back shortly after motor is running on five cylinders once all belts removed, noise stays present. motor locked up once at idle. car will idle on its own no problems. fires up as normal but is noisy and lumpy.
i have had someone out to look at it today and they have said it is NOT bottom end. its more than likely from the top.
the thread : http://www.sccoa.com/forums/showthre...5-engine-noise
it could be a stuck and flat spotted roller on one lifter.
the squeal would be because of the cam lobe hitting the flat spot instead of a smooth roll. one time the noise went away, possibly when the flat spot rolled away from the cam lobe five cylinders because it isnt opening one of the valves on a cylinder noise is internal- not belt driven. cam potentially hit flat spot enough to stop any downward motion, stalling the motor. if it was a rod bearing, the motor would run smooth but be noisy. it would also not cause so many issues so quickly.
what do you guys seem to think to this? i will be tearing the top end apart at some point today.
Neill
symptoms: tick from top end when cold when first purchased car. disappeared when warm. squeal that increases with engine speed. one occasion the noise went away. came back shortly after motor is running on five cylinders once all belts removed, noise stays present. motor locked up once at idle. car will idle on its own no problems. fires up as normal but is noisy and lumpy.
i have had someone out to look at it today and they have said it is NOT bottom end. its more than likely from the top.
the thread : http://www.sccoa.com/forums/showthre...5-engine-noise
it could be a stuck and flat spotted roller on one lifter.
the squeal would be because of the cam lobe hitting the flat spot instead of a smooth roll. one time the noise went away, possibly when the flat spot rolled away from the cam lobe five cylinders because it isnt opening one of the valves on a cylinder noise is internal- not belt driven. cam potentially hit flat spot enough to stop any downward motion, stalling the motor. if it was a rod bearing, the motor would run smooth but be noisy. it would also not cause so many issues so quickly.
what do you guys seem to think to this? i will be tearing the top end apart at some point today.
Neill