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Cambelt Change Interval Hdi


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#1 shallishanti?

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Posted 15 February 2007 - 02:56 PM

What are the cambelt change intervals for the various HDi engines? Particularly interested in the Mk1 2.0.
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#2 proinnsias

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Posted 15 February 2007 - 03:40 PM

I can't comment on the HDi change interval - my manual's a few miles away !!

but

http://www.honestjoh...ndex.htm?t=7920

has an interesting formula :

Take a belt base life of 60,000 miles.

Now apply the following factors as multipliers:

Crank pulley teeth (half cam pulley number) 19t 0.7; 20t 0.9; 21t 1.0; 22t 1.05.

Next, apply the following factors as multipliers:

Fixed tensioner 1.0; Undamped sprung tensioner 0.8; 3/4 wide belt 0.75;
1 wide belt 1.0; Diesel engine 0.85.

As an example, the old Ford CVH 1.4 engine had 19 teeth on its crank pulley (0.7), a fixed tensioner (1.0), and a 3/4 wide belt (0.75).

Change interval becomes 60,000 x 0.7 x 1 x 0.75 = 31,500 miles.


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#3 shallishanti?

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Posted 15 February 2007 - 03:52 PM

Thanks (I think!). Sounds a bit complex and far fetched to me. Begs the question - how many teeth are on the pulley?

I'm trying to weigh up service costs wrt to buying cars at certain mileages.
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#4 old'uns

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Posted 15 February 2007 - 06:20 PM

Thanks (I think!). Sounds a bit complex and far fetched to me. Begs the question - how many teeth are on the pulley?

I'm trying to weigh up service costs wrt to buying cars at certain mileages.


had mine done @ 100k, told 60-70k safest option, but worst option is after belt breaks. if in doubt, change it
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#5 proinnsias

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Posted 15 February 2007 - 10:43 PM

had mine done @ 100k, told 60-70k safest option, but worst option is after belt breaks. if in doubt, change it


I just had a look in the service handbook from my C5 - HDi engines are at 100k miles for normal wear, or 80k for severe ...

Hope that gives you good news <_<
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#6 shallishanti?

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Posted 15 February 2007 - 11:26 PM

100k miles - wow that IS good news!!!

Many thanks - helps me no end.
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#7 shallishanti?

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Posted 24 February 2007 - 02:39 PM

Well I've taken the plunge and have purchased a 52 plate 2.0Hdi SX Estate. Pick it up on tuesday. It drives very nicely, full service history etc. Hopefully won't have to come back for too much advice!
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