Cawood

when changing the cambelt, whats the tensioner

i guessing its something to do with adjust the tension of them cambelt? involved with setting it up?

do you always replace these when doing the cambelts? do they have to be replaced everytime?

i dont understand it fully, can anyone shed a bit of light?

cheers and yes i know im stupid

cossie4i+

iTrader: (15)

You don't have to replace the tensioner

Steve.

Daveyboy

but its advisable to.....

Rolls

iTrader: (2)

Yeah, for the sake of 30 quid for a new tensioner and bolt i would replace it too

mark_24v_wiring

iTrader: (1)

You do if its a zetec engine its storngly advised to change tensioner and idle pullys

So i guess it would depend on what engine were talking about

Cawood

cheers lads but more trying to find out what it does n stuff rather than should i replace it or not (im replacing it anyway)

just wondered, just trying to understand what it does and why it should be replaced?

bud-weis

basically it's there to keep the cam belt at the correct tension, it bolts to the cylinder head and then once the cam belt is fitted it is adjusted outwards against the belt to increase the tension.

it needs replacing because it runs on a bearing and there's a fair bit of stress on them, the bearings wear with age and can basically break or loose tension fucking your cam belt/head/engine.

Cawood

bang on, cheers martin. i understand that

RichieST

iTrader: (2)

i've heard of more cars with tensioner failure than cambelt failiure, so yes, you would be stupid not to change the tensioner and any idler pulleys when doing the cambelt just for the sake of a few extra quid

Deleted by Request

....all you need to do is spin the tensioner if it runs nice and smooth and silent its ok..if not replace.