what do i do with the flame trap, and what is a anti drain back valve??? is
that something to do with the air cleaner element?


"AJS" <asaunders82 (AT) hotmail (DOT) com> wrote

"snoopy42" <snoopybris (AT) gmail (DOT) com> wrote

It's in the oil filter. Helps keep residual oil in the filter to stop the
engine running dry for the initial second or two.
Flame trap is a small plastic part with holes in it for the crankcase
vapours to pass through. The idea being that if there is a fire ball in the
crankcase venting system it will break the fire front up and extinguish the
fire there by stopping a blown seal or two and a fire. It is a "dirty" part
and when it gets blocked you get high sump pressure which can cause a number
of issues. Including blowing the rear engine seals. It's a cheap part and
can normally be kept clean with a small amount of maintenance. I bought
several years ago and have only used two of them. IF it get's really dirty
or messed up replace it. Also replace at the first sigh the plastic is
ageing. It IS a bastard to get to it as it's right under the manifold. Once
you get the hang of it you will be fine. There are a few good Volvo web
forums which you should look at for more detailed information.
http://brickboard.com/ is one BUT there are a few very arrogant and idiotic
people. If you run across one don't be turned off of them. Not everyone who
claims to know something does. FYI I'm not talking about anyone who posts in
here You should also consider buying a decent manual if you wish to
maintain your own car.


AJS

Here's some quick info on flametrap maintainance:


--







http://freevision.org/michael/index.html

There really needs to be a weekly FAQ posted here about the flame

trap. On early nonturbo (the turbo doesn't have one) fours, it is

located between the third and fourth branches of the intake manifold, a

bit below the manifold. On '88 and later models, it is located in about

the same place, but is a bit higher - a little above the manifold. It's

a plastic "Y" or "T" - like junction, containing a plastic screen (I

believe the turbo has the junction only). While the screen can be

cleaned and reused, it is much easier to replace the whole unit - it's

cheap. The two large hoses that connect to the trap just need a quick

look to be sure they aren't blocked with gunk, while the small vacuum

hose (that runs from the small (and fragile) plastic nipple on the trap

to a small brass nipple on the intake manifold) should be replaced, or

at least checked carefully for free airflow. The brass nipple should be

unscrewed from the manifold, cleaned out, and replaced. The job takes

from 45 to 90 minutes the first time, but should be much easier and

quicker once you've done it once.

--







"Against ignorance, the Dogs themselves contend in vain."

i shall have a look on the weekend, thanksssss



"Michael Cerkowski" <mjc1 (AT) albany (DOT) net> wrote


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