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Discussion in 'Engine Topic' started by ULTM8Z, Feb 19, 2021.
I've heard spun bearings sound like that, hope it's not.
Some interesting ideas. Some having potentially better outcomes than others! Watching this thread closely to see what it turns out to be.
most Torque Converters have a centered male pilot "nub" which mates into rear of crank ... you'll have to pull TC / trans back a little to decouple. But trans is what holds rear of motor up; without trans OR without support under oil pan w/ wood block & jack, motor'll likely droop and may damage ign distributor.
Often, flexplates crack around-within center bolt circle pattern; can be difficult to identify in-car. Better to view on bench w/good light.
let's all hope your noise is something as innocuous $ as cracked flexplate or slipped harmonic balancer.
yup. That could be it as well. Slipping outer ring rubbing on timing cover.
Quick N easy to verify ... check that First ultimatez.
i've had that happen. it will slice through the timing cover pretty quick. should be rather noticeable.
Is there a chance you over reved it just before this happened? I'm thinking you maybe pinched a rod bearing. What rods are in there?
Does the engine run roller lifters? I've heard a similar sounds from a roller lifter that the roller is seizing.
It's just a factory ZZ4 short block.
Yep, the factory ZZ4 lifters.