Motor The motor suddenly started making a really loud noise ! Sounds like it will blow up. Pulled plug. How can fix?

Hello Shelley
The loud whining sound could result from an obstruction within the various parts of the machine, like the noizzle or suction pathway.Check the motor could be having a problem

You mention loud noises after installing the blower motor, I would check to see if the loud noises came from the fan not being properly installed or loose, possibly something interfering with the rotation. If you find that you probably can replace the fuse and reinstall everything as it should be.

You could just plug the blower motor in without installing it to test it. If it doesn't blow the fuse again, fix the obstruction/alignment and you should be good.

https://www.manualslib.com/manual/835377/Vanguard-Ohv-V-Twin.html

Remove both spark plugs and test each cylinder for compression. Just press your thumb over the spark plug hole and crank engine. A good cylinder will forcibly push your thumb away with a pfft sound. Likely you'll find one cylinder has no compression.

If you have a dead cylinder, remove the rocker arm cover and assess the damage. If you're lucky you'll find a push rod out of place with no other damage.

Bearings going bad on motor???

if it is a 4 wheel drive sounds like your rear axle may have been cooked do to low fluid bad bearing or both check fluid level nad look for any kind of metal specs in fluid .

sounds like rear end is coming apart
google wrangler forums and post there

the carbs sound like your speed problem.as for the oil it sounds like the oil pump has malfunctioned and that could be a very costly repair,not so much the pump but the damage to the motor
good luck

sounds as if you may be looking in the wrong spot. If different gearing is drastically changing the symptoms you may want to check the trans. or torque converter. sudden pop with engine rpm increase and lack of power sounds like possible band breakage in transmission or impellor breakage in torque converter.

http://geeksquad.fixya.com/ThreadView.aspx?prdid=40860&thid=810370
Really loud noise.
Posted by Theresa626 on July 20, 2008
The belt inside my Hoover broke and so we replaced it. But when we did, it now makes an extremely loud noise when turned on. We think it’s the roller to the vacuum because it doesn't make a noise when the roller is not in there. The roller sounds like its hitting something. However, we have pushed and pulled and done everything and all seems to be right. Everything is clicked in and the belt is on correctly and we've followed the manual. How can I fix this problem?
Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. It sounds to me that it is a bad brushroll and could need new bearings or a complete new brushroll depending on if id is metal word or plastic. Some brushrolls are rebuildable and some are not, you can check your owner’s manual to see if it is or is not; or it could be the start of a broken fan blade or bearing in the motor section. But that is the only thing that I can think of that might be wrong. Feel free to contact your local vacuum cleaner dealer in your area or you can also contact the Hoover website or cust serv phone # listed below. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. - 7 p.m. EST
Thanks, Don the Vac Man
Go Ahead. Use Us.

My Kenmore front-load washer starts to make the huge noise. The noise happens during the wash cycle, but is mild. During the spin cycle, the noise becomes really loud. It looks like the drum is getting loose and hitting other part of the machine.
I checked the drum, and I can sway the drum easily with my hand. So it looks some supporting structure is broken. I don't know if it is easy to open the washer to check what has been broken.