"Free-wheeling" = non-interference.
Just about every V8, including the LA-block 273/318/340/360 that
Chrysler used for years, was NON free-wheeling. If the plastic-tipped
teeth on the timing gear went bad, or the timing chain itself let go,
you got a mandatory valve job thrown into the repair. The piston would
bump the valves and bend them. This never happened to me once out of
about a dozen cars I had with the 273/318/340/360, and some of them ran
up over 200,000 miles; but it has happened to others, generally on cars
which were poorly maintained, had a LOT of miles on them, or which had
been overheated. There's a lot less risk involved than with ignoring
service intervals on the current crop of engines with timing belts,
unless they're free-wheeling (Chrysler 2.2 and 2.5 as in the K-Cars, were).
> Please, what is a "free wheeling valve train". Interference
> or non?
> Thank you,
> Seamus J.
> > > Does subject car have timing belt or chain?
> > > Is it an interference engine requiring scheduled service
> to prevent
> > > destruction?
> > > Thank you,
> > > Seamus J. Wilson
> > >
> > >
> > These engines do not have provisions for a free wheeling
> valve train.
> > And yes it uses a chain
> > Glenn Beasley
> > Chrysler Tech
The 3.3 is a non-interferance engine because it uses a timing chain
unlike the 3.0 which uses a belt.BUT what most people dont know is
that if the valve train and piston meet just right it will bend a
valve/s though it is chain driven but it is very very very rare.So you
have nothing to worry about.I have only seen two cases in roughly 15
years that this happened,one was a ford and the other was a chrysler
product,the chains had broke on both.
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