Sean0coyle

Hi guys,

hoping someone can help here. I have a 2010 E350 Few nights ago as I was driving home the car shredded the belt, today I have changed the belt the top pulley and the tensioner.

When starting the car again the belt is smoking everything seems to be running fine just a lot of smoke and the smell of burning rubber. I can’t see exactly where the cause is coming from

Hoping someone can help

thanks

pb39374

can you take a video? The belt is either rubbing against something or one of the other pulleys were damaged. I just recently changed the upper and lower pulleys plus the belt and tensioner. Luckily everything was smoother afterwards.

mtnman82

+1 - one of the components the belt drives or idler pulleys is locked up or it's rubbing somewhere for some reason.

kajtek1

The slipping belt will get frozen pulley hot, so infrared thermometer will pinpoint it in few seconds.

cetialpha5

Could be one of the other components like the alternator or compressor. You should have checked for play when you had the belt off. Normally you'd replace both pulleys and the tensioner when doing the belt. Last time my alternator went out, it burned up, but it was a burnt electrical smell not rubber. You may have also missed a washer when replacing the pulleys.

Sean0coyle

Can take a video later on. I am going to strip the car again and turn the crank and see if it is rubbing anywhere, then take off the belt and see if anything is not working

Sean0coyle

Yes will check this evening when i get back to it. Going to check all pulleys and components (water pump etc...)

Sean0coyle

Video file coming in too large, any suggestions how to attached the Video?? Smoke is coming from under the oil filter you can see on the Passenger side (UK Spec), I believe these to be AC & Water pump?

nota_amg

More than likely, if you shreadded the old belt, there is part of that old belt somewhere in one or more of the pulleys. Take the new belt off, make sure it's not damaged, then get a good light a mirror and find all the old belt pieces and remove them.

Sean0coyle

Checked earlier that was exactly the problem, parts of the old belt were stuck in behind the water tank all removed now and car going 100% thanks

nota_amg

Sweet, glad I could help!