I posted earlier about occasional smoke from my 86 740 turbo. Peter
posted the following advice:
From: Peter K L Milnes - view profile
Date: Mon, May 8 2006 5:43 pm
Not yet ratedRating:
Reply | Reply to Author | Forward | Print | Individual Message | Show
original | Report Abuse | Find messages by this author
I would be inclined to give the inlet tract a thorough cleanout
turbo hoses and intercooler if fitted. The Positive Crankcase
system could also do with a thorough clean (no filter in "Y" piece on
cars). I would guess at a bit too much oil residue slopping around in
turbo hosing/intercooler. The cleaning exercises should be done
All the best, Peter.
700/900/90 Register Keeper,
Volvo Owners Club (UK).
So I had the work done, and the smoke seems to have dissappeared.
Thanks for that. But shortly after, I did a 3 hour drive, and near the
end, the oil light started flashing. The dipstick showed I was down
2-3 litres! I refilled it, and it seemed to stay up for a week or so of
light use. Then another 2.5 hour drive this w/e, and it's down 1.5
litres. Also, when checking the oil after coming off the highway,
there was light smoke coming from the dipstick hole, and the oil cap
when I removed it.
The car did not use any oil between changes before the PCV work. The
shop said keep an eye on it, but offered no thoughts on whether they
are connected. Anyone else know if the PCV work could have lead to
some kind of leak or increased consumption? Oh yeah, about the same
time, I also had a new (used) catalytic converter installed to replace
a rattling one.