Kurtis:
The PO of my '74 TR6 had removed the PCV when converting to Weber carbs.
The end result is that the internal pressure of the engine would push oil
out of every available escape route. I rigged up a 70 TR6 Pcv setup and
solved this.
You might be facing a similar situation if you try to run your TR4 without
the PCV system.
Paul
on 10/5/01 7:25 PM, Kurtis at kurtisj@cox-internet.com wrote:
> 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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