740 2.3 Turbo estate

  • Thread starter Thread starter Edward Milan
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Edward Milan

I am getting a 97 reg with 68,000 miles.

I have no guarantee how often the oil has been changed previously, but
car is being purchase from a reliable source.

Would there be any advantage in giving it a good hard run on motorway
and then changing the engine oil and filter, or would it be better to
change the oil and filter first, then give a hard run and then again
change oil and filter.

Any recommended grades of oil for the procedure?

Jeff
 
Personally I would change oil, filter and coolant, then give it a good long
but easy run. Then change them again. You don't know what is in the oil
now, or if the filter is ok. I would also get new air and fuel filters.

Paul
 
Have owned an '87 740 turbo wagon (estate) since new and have always used
synthetic oil. If your car turns out to be in good shape, I would go with
sythetic oil to ensure that the turbo bearings continue to work without
problem. While the B-23 engine is really fine, turbo bearings seem to be
the item that can go, if not properly oiled.

Good luck, I hope your 740 turns out to be a trouble free as mine. It's a
simple car that seems to be well made.
 
Change it, drive it fast for an hour or two, then pour a liter/quart of ATF
in the oil, drive easy for 1/2 hour and have it changed while it's very
warm.

I used to stick my finger in the oil fill hole, and reach around--if there
was a 'lot' of gunk I would remove the valve cover and clean out as much
gunk, including digging out any gunk in the oil galleries that I could
reach, and if they were badly gunked up I would use a wire hanger and press
down in there to get as much gunk either pulled up (better) or pushed down
( danger will Robinson!) Pressing gunk down risks clogging up the gallery,
try not to do that if there is heavy gunk.

I seized a engine using 'motor flush' since then--mid 70's--I now use
transmission fluid to do the job--loosen up gunk--***BUT** in beat engines
the gunk in the bearings etc is critical--wash it away and you might have a
very noisy engine...

So my advice is do the finger test, also look on the dip stick--it should
not be much discolored along it's length--obviously there will be some, but
if it's all black where the dipstick is covered by oil you have a badly
maintained car--Most Volvos in the USA will pass these tests more or
less--my experience is from years of driving $200 American cars as a kid.
 
I would have thought that it was a 940 if it was '97 registration. Surely
you mean an '87 reg.

Cheers, Peter.
 
Many thanks for comments, It is a 940, and a replacement for current
940 2.0 which has a worn out no. 1 cylinder.
 
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