03-06-2021, 08:16 PM
Engine sounds like an A7 engine. They don't approach sewing-machine smoothness.
You hear the rumble made by over-advance best if you blip the throttle a little.
Also, a loose flywheel shows up better with a "blip".
If you had a video of the engine with the throttle being snapped open a bit, it would make it easier to diagnose.
The squeaky noise is a big no-no. That needs sorting before anything else.
The centre rear sump bolt may just be catching the flywheel, causing the squeak. Back it off 1/4 turn, and try turning the engine by hand, see if the noise goes away.
Otherwise? Tight valve guides - doesn't look like it. Cam front bearing retaining bolt too long? Don't think it would sound like that.
Top fan pulley bearing running dry? Maybe. Unexpected item in the flywheel housing area? Maybe.
Un-lubricated areas anywhere in the crankcase or block? Unlikely, given your problem of excessive fluids in the sump.
You hear the rumble made by over-advance best if you blip the throttle a little.
Also, a loose flywheel shows up better with a "blip".
If you had a video of the engine with the throttle being snapped open a bit, it would make it easier to diagnose.
The squeaky noise is a big no-no. That needs sorting before anything else.
The centre rear sump bolt may just be catching the flywheel, causing the squeak. Back it off 1/4 turn, and try turning the engine by hand, see if the noise goes away.
Otherwise? Tight valve guides - doesn't look like it. Cam front bearing retaining bolt too long? Don't think it would sound like that.
Top fan pulley bearing running dry? Maybe. Unexpected item in the flywheel housing area? Maybe.
Un-lubricated areas anywhere in the crankcase or block? Unlikely, given your problem of excessive fluids in the sump.