Timing Belt Change Interval - 850 Turbo
Larry
based on only miles (one service manager at my dealer says change at 70,000
miles regardless of time) or miles and time (e.g. another of the service
managers at my dealer says change at 7 years if I have not driven 70k miles
yet) and various newsgroups say change at 50,000 miles and/or 5 years -
whichever comes first as there have been belt failures shortly after that
time. My owners manual says 70,000 miles or 7 years, whichever comes first.
Reason for this post: I have a 1996 850 turbo with about 33,000 miles and 6
years on the clock - should I have the timing belt and/or water pump
changed? How am I to know what to do? Who are the real experts here - any
Volvo technicians in this group have experience based advice?
And, at what time and/or mileage should I change the water pump? One of the
service managers at my dealer say the bearings (which would give a
catestrophic failure of timing belt and thus valve damage) almost never
fail - pump usually just leaks. Any opinions on this would also be
appreciated.
Michael Pardee
I am a believer in changing timing belts on interference engines (like
yours) when either the distance or time is reached. The cost of putting
it off can be just too high.
Absolutely change the water pump at the same time. One of our brothers
in this group was recently an exception to the "almost never fail" rule,
and with less than 100K miles on the engine paid $6000 when his water
pump let the timing belt go. It sounds like the Dirty Harry line, "Do
you feel lucky?"
Mike
ToonToys
Terry
89 740
"Michael Pardee" <mich...@cybertrails.com> wrote in message
news:3C041638...@cybertrails.com...
Michael Pardee
>
> So what is the interval on a 740 with a b230?
>
> Terry
I don't have the owner's manual handy, but the Haynes manual says 48K
miles / 4 years. Fortunately, if yours is a US model, it (and mine!) is
non-interference so the stakes aren't so high. European and Australian
models may be interference.
Mike
ToonToys
and has been dealer serviced by the previous owner. I took the cover
off,and it looks good(belt), what else should I look for? I see that the
water pump is recommended, how do I check it?
Thanks for all your help,. Terry
89 740
"Michael Pardee" <mich...@cybertrails.com> wrote in message
news:3C04225B...@cybertrails.com...
James Sweet
stuck on the side of the road, not a huge deal in most cases. To check
the pump, wiggle the shaft, if there's much play in it replace it.
Michael Pardee
>
> I would hope the U.S. and Canadian are the same, mine has 337,000 km on it
> and has been dealer serviced by the previous owner. I took the cover
> off,and it looks good(belt), what else should I look for? I see that the
> water pump is recommended, how do I check it?
>
> Thanks for all your help,. Terry
>
> 89 740
I believe the North American models are the same in that respect, but
I'll defer to the experts on that.
I let mine go way too long, and I saw hundreds of small cracks in the
outer surface of the belt where it went over the cam gear. When I took
it off, I could pick teeth off the belt with my thumbnail! If the
surface shows no sign of cracks, you are probably OK - but I wouldn't be
that bold with an interference engine.
If the water pump isn't misbehaving (wobbling, making noise or leaking),
there isn't much point disturbing it until it does or until the belt is
changed. On the B230, the pump is driven by an accessory belt, so it
won't even affect the timing belt if the shaft does fail. I don't know
why they made interference engines dependent on the water pump shaft
holding up... but I wasn't consulted ;-)
Mike
Mikael Freij
waterpump. the pistons WHILL HIT THE VALVES!!!!!!!
thise goes for al volvo cars starting with 960 model and on . cars with
B230-A-B-E-F-FT engies whont hawe anny cylhead
injuries when timing belt are broken.
Robert Dietz
with finding a way to minimize side load on the front bearing by reducing
the shaft length and reducing the manufacturing cost of the pumpfewer
materials).
Bob
"Michael Pardee" <mich...@cybertrails.com> wrote in message
news:3C0453B1...@cybertrails.com...
Peter Milnes
B204 and B234) states 50,000 miles replacement interval with check and tighten
10,000 miles later. For vehicles which do not reach 50,000 miles in four years
the belt should be changed every four years.
Cheers, Peter.
"Michael Pardee" <mich...@cybertrails.com> wrote in message
news:3C04225B...@cybertrails.com...
Mark A Sovereign
I all I have a UK 1994 850 will 164k on the clock. I have changed my cambelt
twice if memory serves me and the aux belt with it. The interval specs here
in the UK are 80k but I go for around 60k for a safe margin.
mark
auk voc rhd 850glt 2l 20v 164k.
"Peter Milnes" <Peter.K....@btinternet.com> wrote in message
news:9u3u7u$oos$1...@plutonium.btinternet.com...
Peter Milnes
Green Book which is Volvo official policy. When you have looked at the document
I would like an apology, but I know I will not get one. Did you check to see
where I was posting from before you replied?
Cheers, Peter.
"Mark A Sovereign" <&Mark*Sove...@btinternet.com> wrote in message
news:9u8n9t$lr7$1...@uranium.btinternet.com...
: Hi all,
: >
:
:
Peter Z. Lega
My 1995 books all say 70K but my dealer insisted volvo now says 50K
or 5 yrs. (whatever comes first).
I went through the same confusion.
The engine is a valve crusher, I'd invest in a 50K timing belt interval,
as well as synthetic lubes and tranny flushes. Cheap insurance.
Peter Milnes
50,000 mile replacement.
Cheers, Peter.
"Peter Z. Lega" <newsr...@tractor-internet.com> wrote in message
news:9ugsnu$fdq$1...@bob.news.rcn.net...
:
: My 1995 books all say 70K but my dealer insisted volvo now says 50K
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