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Old 08-28-2005, 03:01   #1 (permalink)
Graham Dean
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850 T5: Possible sticking valve lifter

I'm (still) having trouble with starting my car requiring lots of turnover
(10-20 secs) at times.
It's been suggested that this may be due to a sticking tappet which keeps
the valve slightly
open at rest thus given no compression. If so, could this just be a single
valve? Would it
not at least attempt to fire on the remaining 4 cylinders?

What's solution - is there any additive I could use? Very thin synthetic
oil?
Head strip down?....

Any advice gratefully received!

Graham


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Old 08-28-2005, 08:01   #2 (permalink)
Niels Bengaard
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Re: 850 T5: Possible sticking valve lifter

> I'm (still) having trouble with starting my car requiring lots of turnover
> (10-20 secs) at times.
> It's been suggested that this may be due to a sticking tappet which keeps
> the valve slightly
> open at rest thus given no compression. If so, could this just be a single
> valve? Would it
> not at least attempt to fire on the remaining 4 cylinders?
>
> What's solution - is there any additive I could use? Very thin synthetic
> oil?
> Head strip down?....
>
> Any advice gratefully received!
>
> Graham


How about measuring the compresion ratio, that should indicate if you got a
problem with at sticky valve.


Niels


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Old 08-28-2005, 10:02   #3 (permalink)
Graham Dean
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Re: 850 T5: Possible sticking valve lifter


"Niels Bengaard" <bengaardFJERNDETTE@tdcadsl.dk> wrote in message
news:4311c387$0$742$edfadb0f@dread12.news.tele.dk...
>> I'm (still) having trouble with starting my car requiring lots of
>> turnover (10-20 secs) at times.
>> It's been suggested that this may be due to a sticking tappet which keeps
>> the valve slightly
>> open at rest thus given no compression. If so, could this just be a
>> single valve? Would it
>> not at least attempt to fire on the remaining 4 cylinders?
>>
>> What's solution - is there any additive I could use? Very thin synthetic
>> oil?
>> Head strip down?....
>>
>> Any advice gratefully received!
>>
>> Graham

>
> How about measuring the compresion ratio, that should indicate if you got
> a problem with at sticky valve.
>
>
> Niels
>


Yes, good idea.

Graham

Ps. Unless it starts doing it intermittingly then it's be a pain I guess -
but all I can do!


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