Alternator Belt Tensioning

Fitting a new alternator or auxiliary belt, as it is sometimes known, may look like a simple and straight forward task. Off with the old and on with the new. But the automatic tensioner needs to have the correct amount of tension on it. Too little and it will squeal, over heat and get damaged. Too much and you could damage pulleys and bearings. This video shows how I tension my belts to the Goldilocks standard of just right. It took me some time to get this right but easy to do when you know how. Enjoy.

[@hardyspicer2163]

Thank you, very well explained, pictured and demonstrated.

[@sreviz]

Thanks for the precious video.

[@julianlangdon3456]

Thanks for that, was keen to see where that 'Locking Pin' location is, off to replace an Idler pulley now on my 1.4HDi (very similar layout)

[@mavicprotoe3959]

very helpfull mine was the cranksharft pully cost about 50 pounds and a mate fitted it for a some beers

[@sandydogy]

I get confused is this a non automatic tensioner? thanks Ian

[@cmathe17]

cool, cheers

[@LeMiira]

What's the size of Allen key?

[@MrBigsky13]

Couldn't hear you with the motor running, you were standing in front of the camera. There is no value to this video I think you should take it off. Sorry about that sir.

[@hardyspicer2163]

@MrBigsky13. Perhaps you could upload an even better one if you are so clever yourself sir. Thought not.