Re: Are they nuts?The Roaming Boxhead wrote:
> "TOG@Toil" <totallydeadmailbox@yahoo.co.uk> writes:
>
>> On 13 Mar, 12:29, "Blattus Slafaly £ ¥ 0/00 :)"
>> <boobooililili...@roadrunner,com > wrote:
>>> I can't find an auto tech newsgroup. VW wants $800 to change a $36
>>> timing belt on the 1.9 Turbodiesel. Are they nuts? I guess i'll be doing
>>> that myself. Pushing 100k miles prolly should be changed. But a belt for
>>> timing? Why not a chain?
>
> Noise emissions, for starters. Chains do make noise, and with ever
> tightening noise emissions, a cambelt is an easy way to remove some
> mechanical noise. Not to mention that you can use them for other things
> as well like driving the waterpump etc.
>
>>> Seems like the weak link in this engine that
>>> would have no problem going 300k miles. Have to tear it apart for a
>>> stinking belt.
>
> You don't have to "tear it apart", you have to remove the cover over the
> belt and more or less stuff that's in the way of getting it out.
You don't have to tear it apart? Only remove the fender well and a motor
mount and the crank pulley to get the timing cover off, that's all. No
big deal.
>
> Oh, and while you're in there, I'd consider replacing the tensioner
> wheels and similar items.
>
>>> It IS an interference engine so when the belt breaks the
>>> pistons crush all the open valves.
>>
>> Most cars seem to use belts rather than chains. Quieter and cheaper.
>> Some are easier to change than others - on some Fiats and Alfa Romeos,
>> I think you have to remove the engine to change the belt, which is
>> daft.
>
> On some the workshop manual suggests that because of space issues. Most
> engine bays these days are so cramped that you've got to do weird and
> wonderful things just to access basic components (on some transverse
> sixes, you have to remove parts of the manifold to get at the read spark
> plugs). This is often because engine bays seem to get smaller in
> relation to engine size, plus all the anciliaries that you need these
> days for 'creature comforts'.
>
>> My Nissan uses a chain. So did my Saab. I don't know which other makes
>> do.
>
> Some BMWs (but not all), a lot of Mercedes engines, most of the US V8
> engines...
>
>> A mate has just had an incorrectly fitted (12,000 miles ago) belt snap
>> on his Renault Megane Scenic. He is Not Happy. I don't think there's a
>> problem with belts, generally, as long as they're changed religiously.
>
> That sounds more a problem with Thick Fit type mechanics than belts -
> problems with belts are usually because someone forgot to change it or
> fucked up the change.
>
> And it's not exactly unknown for chains to wear and/or snap either.
>
>> As for bikes, quite a few use belt drive for the cams.
>>
>> X-posted to ukrm, where there are several car nuts.
>
> *waves*
--
Blattus Slafaly ? 3 :) 7/8