xsara TD cam belt tension

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tom c2
Posts: 3
Joined: 02 Dec 2005, 10:17

xsara TD cam belt tension

Unread post by tom c2 »

:lol: just changed my xsara's cam belt and water pump.is it possible to over tension the cam belt using the method suggested in the haynes manual, ie refit the belt,let the tensioner take up the tension, lock it back up,turn the engine over twice,let the tensioner take up the tension again,
lock up the tensioner again, job done :?:
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ralph
Posts: 266
Joined: 14 Jul 2003, 15:46
x 2

Unread post by ralph »

Seems you've got the post-cambelt change worries - I'm a fellow sufferer :-k.
All you can do is check the cambelt tension along its longest run - from camshaft pulley to injection pump pulley will do. When twisted by hand, can the belt be turned 90degrees - no more, no less?
If yes, the tension will be right.
2000 Clio 1.2 8-valve
Couple of Merc 190s
2009 petrol Focus
1998 Xsara TD, 293K - gone but not forgotten.
205s, 405, ZXs all loved and crushed.
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AndersDK
Posts: 6060
Joined: 21 Feb 2003, 04:56
x 1

Unread post by AndersDK »

Tom -

Using that method you should never be able to over-tighten the belt. Enjoy your car and clear your thougts :D
Anders (DK) - '90 BX16Image
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Dave Burns
Posts: 1915
Joined: 14 May 2001, 05:30
x 2

Unread post by Dave Burns »

No it can't be over tensioned using the spring loaded tensioner, it can however be under tensioned which is probably worse.

Two ways this can happen, 1, the plunger in front of the spring can go rusty making it stick in its bore, giving a false setting, and 2 the most common method of getting it wrong I suspect, letting the engine roll backwards by even the slightest amount before releasing the tensioner again, this can transfer some slack to the front run of the belt which will not be romeved by the tensioner.


Dave
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