95 854T Valve Train Noise on Startup

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Espressopithecus (Java Man) - 02 Jul 2006 17:57 GMT

Car has 144k Km, always dealer serviced at recommended intervals, oil
changed every 8000 Km or less. On cold start (even in warm weather) the
valve train clatters loudly for ~ 2-3 seconds on startup. Noise
completely disappears after than, and doesn't recur until next cold
startup. No other symptoms -- runs smooth and quiet, ample power. Low
oil consumption -- uses ~ 1/2 litre between oil changes.

I plan to keep the car for ~ 2 more years. Should I do something about
this clattering, or is it normal for Volvo hydraulic lifters?

Rick

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Nick - 02 Jul 2006 18:42 GMT

> Car has 144k Km, always dealer serviced at recommended intervals, oil
> changed every 8000 Km or less. On cold start (even in warm weather) the
[quoted text clipped - 7 lines]
>
> Rick

Have you changed the oil / filter recently ?

Some filters lack a non-return valve which allows the filter to drain out
and takes a few seconds to re-fill, before the oil pressure is restored ?

Nick

new-to-me V70 diesel ( with a cheap crap Fram oil filter I have just been
told to get changed by my regular mechanic)

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Espressopithecus (Java Man) - 02 Jul 2006 18:57 GMT

> > Car has 144k Km, always dealer serviced at recommended intervals, oil
> > changed every 8000 Km or less. On cold start (even in warm weather) the
[quoted text clipped - 9 lines]
>
> Have you changed the oil / filter recently ?

No, but it's due within the month.

> Some filters lack a non-return valve which allows the filter to drain out
> and takes a few seconds to re-fill, before the oil pressure is restored ?

The dealer uses only Volvo parts -- I assume it has either a Volvo
filter or one that is Volvo-approved.

Rick

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Michael Cerkowski - 02 Jul 2006 20:00 GMT

> Car has 144k Km, always dealer serviced at recommended intervals, oil
> changed every 8000 Km or less. On cold start (even in warm weather) the
[quoted text clipped - 7 lines]
>
> Rick

The earlier years of this model had trouble with lifters that failed
at relatively low mileage. The lubrication passages in the head were
too small, and there was probably a design problem with the lifters
themselves. If you're lucky, a switch to synthetic oil - with the risks
of oil leaks developing that this entails - will solve the lifter
problem.
If not, you may be looking at new lifters, down the road. And no, I
don't
know exactly what the design fix was. Maybe someone else here does.

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Niels Bengaard - 02 Jul 2006 21:02 GMT

> The earlier years of this model had trouble with lifters that failed
> at relatively low mileage. The lubrication passages in the head were
> too small, and there was probably a design problem with the lifters
> themselves. If you're lucky, a switch to synthetic oil - with the risks
> of oil leaks developing that this entails - will solve the lifter
> problem.

On an engine like that you always use synthetic oil.

Niels

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John Horner - 03 Jul 2006 19:15 GMT

> Car has 144k Km, always dealer serviced at recommended intervals, oil
> changed every 8000 Km or less. On cold start (even in warm weather) the
[quoted text clipped - 7 lines]
>
> Rick

Very common and not something I would not worry about. I assume that
your dealer is using Volvo oil filters and the correct weight and
quality of oil, so that isn't likely an issue.

John

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