I am not mechanic and I do know exactly what do you mean writing about
machine shop, but I will explain what is going on:
I am not mechanic. My mechanic told me, there is no problem with getting
piston rings to FF 1.6. He deassembled engine and than he says "there is no
such piston rings on the market" :(. And now I am trying to find any, still
I think it is not needed to clean up cylinder bores, because everything is
fine, just rings has gone (it is only 100000 km milage). But - I am not
Do you have similar problems with piston rings supply in your country?
I'm wondering what you did to your poor engine to eat a set of piston rings
in 100'000km. Did the mechanic do a compression and leakdown test to verify
that it was the rings, and show you the results, or did he just say "your
rings are worn out"? Was the engine smoking? Did it smoke when you
decelerate? Usually the valve guides go before the piston rings, and that
will also cause a nice smoky mess. If the rings really are worn, then
chances are you have also worn the cylinder bores, to the point that there
is a nice ridge in the metal at the top. If you put new (square-edged and
full-sized) rings in there, they are going to hit that ridge and not be
happy. The cylinders should be machined before putting new rings in.
I haven't had to buy a set of rings since I rebuilt my Fiesta enginer over
15 years ago, so I can't really help you there, but I can't imagine they are
so difficult to find.
Right, for starters the bottom end of all the Zetec S and SE engines is non
dismantleable- individual parts are *not* available from Ford. That goes for
rings, rods, pistons and especially bearing shells. The block is cast with
main bearings entire, line bored to size and then snapped off with a machine
to form the main caps, which then drills and taps holes so they can be
bolted back on. Thus no two are the same. When the bottom end is worn out,
you're meant to replace it with a complete new unit.
However Mahle or Bepco (piston and ring suppliers) may be now marketing
parts. Any *good* engine rebuild shop should be able to tell you.
Good news - my mechanic has found the rings!
AFAIK Federal-Mogul Friedberg GmbH - Goetze in Burscheid produces such
piston rings for Ford, but Ford policy is to not distribute individual parts
Nevertheless it seems parts are available unofficial :) - mechanic told me
the rings are original...
No comments. Do you think it is good policy for Focus users? I think: not.
Next time I will think twice when considering buying Ford.
Thank all for help,
The availability of piston rings in the aftermarket should be a pretty low
priority when deciding on a new car. Maybe Ford doesn't want backyard
mechanics jamming in new rings only as a quick fix. You need to really be
hammering your car and neglecting maintenance to have that kind of wear
after 100k. My last two Corollas went more than 300'000km and still had
good compression, my VW was up to 250'000 and needed only top-end work, and
I know several Mondeo owners (Zetec motor) with no bottom-end wear. As far
as I recall, every long-term car in AutoBild (100'000km per test) has shown
unmeasurable cylinder wear at the end of the test (they tear the engine down
and measure with a micrometer).
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