Your right about the restriction. My oversite,Good call,I do put a
restricter in the fitting.
Skip......At 03:29 PM 7/1/97 -0500, Todd Mullins wrote:
>David Moore wrote:
>
>> > Does anyone know where to fing alloy valve covers that have the smog
>> > fitting on the back?
>
>Skip Kelsey writes back:
>
>> I dont think that there are any. I drill a hole in the back and install a
>> 90 degree aircraft type bulkhead fitting. The hose slips right on. You can
>> get them in brass. They look very good.
>
>Hmmm.
>
>Unless y'all are talking about something totally different, the smog
>fitting on the back of the valve cover pulls fuel vapors from the carbon
>canister, through the block, and to the carbs via PCV. On the stock
>valve covers, this fitting has a very small inlet hole, and the workshop
>manuals make a big deal of this restricted inlet. I guess you don't
>want too many gas fumes running around your crankcase at once, so they
>meter it with the restriction, but as I said, that's just a guess.
>
>Any other thoughts?
>
>--
>
>Todd Mullins
>Todd.Mullins@nrlssc.navy.mil On the lovely Mississippi (USA) Coast
>
>'74 MGB Tourer with stock valve cover and carbon canister
>
>Atheist #685 "Whatever, baby."
>
>
|