changing alternator what else do i need?

[Martin_172]

changing the alternator on my 172 this week, so assuming i need a new belt, what about tensioner? just do the full lot?

 

[scotty2hotty81]

i would only change the aux belt/tensioner if its due, otherwise just change the alternator.

 

[keirravn]

manual tensioner no? it is on my cup anyway, id do the belt they cost fa from the factors anyway and worth doing whilst your at it, i cant think of anything else you might need

 

[sideways danny]

definitely a new belt, no question. If there's no record of the tensioner and idler being done in the last 20k/2 years then i'd change it

 

[jack_davey]

When you remove an old belt and refit it, that's normally when they decide to suddenly snap.
For the sake of the price of a belt I don't think it's worth the risk personally.

 

[Wests Renault]

We would always advise the belt kit to be replaced