Hi folks, The manual says "tension with a lever-type torque wrench to 20Nm"
Is that right ? It sounds like bugger all.
Steve
Timing Belt tension on a 200Tdi
Nov 13, 2005
Last reply: 5 years ago
9 Replies
Its not too far off what my workshop manual says for the 2.5 diesel (29 to 23 Nm) - so its feasably correct.
Yes, I got that idea from the manual too, just the tension seems awfully low.
Steve
On or around Sun, 13 Nov 2005 20:14:24 +0000, Steve enlightened us thusly:
nah, 's right. that's th eload on the tensioner, it's quite tight enough. It's not the fixings.
On Sun, 13 Nov 2005 21:16:53 +0000, Steve wrote (in article ):
You're not measuring the actual tension in the belt, though, you're measuring the torque that results on the idler pulley, and the laws of geometry mean that this is (likely to be) much lower than the actual belt tension.
Nick.
Besides which and despite popular folklaw, it is not an elastic band.
Huw
On or around Mon, 14 Nov 2005 13:10:43 -0000, "Huw" enlightened us thusly:
very true. The amount of stretch is minimal indeed.
Which is just as well, as setting the timing with a stretchy belt could represent something of a challenge.......... ;-)
Richard
If you are replacing the timing belt you need to double tension it, i.e. tension correctly once, rotate engine by hand for a couple of revs, and repeat tensioning. I think there is a good description on difflock website (for 300tdi, but very similar).
Pieter
19/20 nm is spot on with a flexi torque wrench Steve. 45 nm for the fixing bolt with a snap torque wrench Regards Def. Ken.
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