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Re: [oletrucks] 55 road draft tube ?'s

To: oletrucks@autox.team.net
Subject: Re: [oletrucks] 55 road draft tube ?'s
From: MarkNoakes@aol.com
Date: Fri, 5 May 2000 07:12:56 EDT

Since I'm sure that your setup looked as stock as possible, is there any way 
that you could post pictures?


Mark Noakes
58/56 Suburban
Knoxville, TN

In a message dated 05/05/2000 6:14:47 AM, Advdesign1@aol.com writes:

<< >  Is there anything desirable (other than eliminating the road tube) about
>  PCV?

Very desirable.  As you burn fuel, water vapor is produced that finds its way 
to oil.  Same with gasoline  when choke is on.   sulfur in gas burns and some 
SO2 also dissolvs in the moisture in oil forming acid.This gobbles up 
bearings.  What we need is a little fan inside the engine to blow out the 
vapors.  PCV valve does the trick.  The early PCV system was adveritsed in 
the 1950s for door to door delivery trucks that never got up to speed for 
draft tube to work properly.  At speed, the air currents under the engine 
help suck air and vapor contaminants out of the engine.  Replacement air 
comes in the top vents or vented oil filler cap.  Good system.  Burning the 
contaminants does not hurt engine, but I think you need a richer carb jet if 
you retrofit.  I put one on my 1946 2 ton snow plow that never gets above 5 
mph.  Engine is more comefortable with choke pulled slightly out.
Bob ADler >>

oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

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