Randall,
Thanks for the info. The road draft tube is present. I'm not all that
concerned about exact originality - I would prefer simplicity.
Kurtis Jones
Russellville, AR
1963 TR4
>
>
> > Kurtis :
> >
> > I can't say if your engine should have any emission controls or not, but
> > even if it should, a '63 would have the connection from the valve cover
to
> > the air cleaners, not to the intake manifold. There was a special air
> > filter used, with a fitting in the center for the crankcase vent line.
> > (Last I checked, replacement type filters with this fitting were not
> > available, and original filters were quite expensive.)
> >
> > IMO you should check for the presence of a road draft tube. With the
> > 'breather' cap, you should also have the road draft tube. If the tube
is
> > not present, there will be a plug that you can pry out and fit a tube.
> > Don't know if new ones are available, but used ones are plentiful.
Unless
> > exact originality is important to you, I'd stick with the open system.
> The
> > early closed systems all had problems of one sort or another, IMO the
only
> > good alternative to an open system is a full PCV system with a filtered
> > fresh air intake for the crankcase, linked to the engine air intake so
> that
> > blowby is routed into the carbs when there is no manifold vacuum. (AFAIK
> no
> > wet liner engine was ever fitted with such a system by the factory.)
> >
> > Randall
> >
> > > -----Original Message-----
> > >
> > > Greetings...
> > >
> > > I have recently purchased an early 1963 TR4, and have an emissions
> system
> > > question. When I purchased the car, the PO indicated that the
> > > idle was set a
> > > little high (actually around 1300 RPM). When I tried to adjust it
down
> to
> > > normal, I quickly learned that the engine would not idle any
> > > lower. It didn't
> > > take me long to figure out that the problem was the unconnected
> > > hose leading
> > > from the top of the intake manifold. There is also a hose
> > > connection point on
> > > the top (not the side as I've seen on TR4s w/ emissions control). The
> oil
> > > filler cap is the open circuit breathing type, and there is no
> > > sign of a PCV
> > > valve. The car has the SU type H6 carburetors with the standard air
> > > cleaners.
> > >
> > > I simply plugged the intake manifold and valve cover holes with
> > > an appropriate
> > > sized bolt (they both had threaded inserts w/ a hose connection). The
> car
> > > seems to run fine now with a good idle.
> > >
> > > Base on all the information I can find, this car should not have
> > > an emissions
> > > control system. Does this sound right? Is there any way I can
> > > verify this?
> > > Also, does what I done to this point seem reasonable?
> > >
> > > Thanks in advance for any info/help!
> > >
> > > Kurtis Jones
> > > 1963 TR4
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