Whoops I meant 3.5's. That was stupid of me.

"Joe" > wrote in message
...
> I would have to agree that it's not really right (I'm an engineer too). I
> have a couple of 3.3's, and they're the same way. My dad has one, and his
> water pump locked up without warning and killed the timing belt. I don't
> recall ever seeing a locked up water pump before, so I think it was a
freak
> thing. Since the old 3.3's are freewheeling, it was fairly harmless. On a
> later model it would be the pits.
>
> I certainly understand what they're going through from my own experience.
> Still, I don't think the EPA has outlawed timing chains and gears, nor do
> they require oil pumps, water pumps, balance shafts and other belt-driven
> equipment to further entangle whatever's driving the camshaft.
>
> "Anthony" > wrote in message
> . ..
> > "Richard Ehrenberg" > wrote in
> > :
> >
> > > Actually, I know those engineers. Trust me, they didn't want a "crash"
> > > motor any more than you do. They were forced into it by the EPA. Those
> > > neat little valve clearance notches in the pistons proved to be a
> > > "reservoir" of hydrocarbons that are 'hidden' and won't burn. I.e.,
> > > smog. They had to go.
> > >
> > > But they tried their best. There IS enough clearance so that a belt
> > > that has jumped two teeth will NOT cause a crash. And even a one-tooth
> > > jump turns on the Czech engine light so you know something's amiss.
> > > And they REALLY broke their stones to get 100K belt life on the DOHC.
> > >
> > > I just did a belt on mine - not a hard job at all. But don't even
> > > think about it without the FSM and a torque wrench handy! I suggest
> > > replacing the hydraulic tensioner also, and carefully checking
> > > (feeling for roughness) the bearings in the tensioner and idler
> > > pullies.
> > >
> > > Rick Ehrenberg
> > >
> >
> > Rick,
> > The interference of the valves/pistons is not the concern. I fully
> > understand the impact of valve reliefs on emissions. My issue is with
> > running ancillary equipment from the timing belt. I realize it makes
> > packaging nice and compact, reduces parts in the engine assembly, etc,
> > but the combination of failure prone ancillary equipment in the timing
> > structure and an interference engine do not go well together.
> >
> >
> > --
> > Anthony
> >
> > You can't 'idiot proof' anything....every time you try, they just make
> > better idiots.
> >
> > Remove sp to reply via email
>
>