Nevin,
Although not a RB, I bought my 72B with early HS-4s, and no emissions
controls: there's no PCV valve, gulp valve, air pump, etc. The only
remnant of the emission control system is the adsorption canister, which is
still connected to the rocker cover by a hose. The oil filler has an
unvented cap, and the oil separator tube vents to atmosphere. When I got
the car last November, I was somewhat concerned by condensation under the
oil filler cap, which I thought could have been the result of having no
PCV. But now I think that the condensation was largely due to cool
(sometimes cold) temperatures here in Massachusetts, and not to the lack of
PCV as I suspected at first. Now that Spring has brought warmer temps,
there's no apparent condensation. Still running great -- Top-down & torquey!
Dave Sylvain
72B
At 03:39 AM 4/22/99 GMT, dresden@tiac.net wrote:
>When converting a rubber bumper to HS4's, what is done about the PCV
>arrangement? I don't have a PCV valve on my manifold, and am wondering if
>I'm better off just using a vented cap and plugging it up, or is there a
>definite running benefit to PCV, and does it just plug into the later B
>plumbing without causing any trouble?
>Also, what about the air pump and associated equipment? Disconnect, cap
>off, leave in place, or what?
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