<VV> Thanks to all, weight of oil bath oil, lower shrouds

[RoboMan91324 at aol.com]

Stephen,
 
Here is my opinion on your two questions.
 
1.)  It doesn't matter what oil you use.  The way  the oil bath filter works 
is when the dirty air flows across the surface of the  oil, any particles that 
come in contact with the sticky oil will stay there and  the air that flows 
to the regular air filter has that much less "stuff" to clog  it.  A heavier 
weight oil will not increase the filtering capability.   Use the cheapest oil 
possible.  Why waste money?  I have heard that  some folks use waste oil from 
their oil changes in the oil bath filter.   The reasoning behind this is that 
the oil filter has kept particulate matter out  of the used oil.  The reason for 
changing the old oil is because the  molecule chains have broken down and the 
lubrication capability has been  reduced.  However, it is still plenty sticky 
enough to pick up particles  from the air.  However, you can get cheapo oil 
for 50 or 60 cents a quart  on sale so it is not a big deal to use the new 
stuff.
 
2.)  I agree that 212 degrees F is not high enough to  boil off the water, 
etc. from the engine.  You may also be shortening the  life of your exhaust 
system.  Unfortunately, it is likely that your engine  oil would not get much 
hotter in 15 minutes even with the replaced shrouds but  you may want to give it a 
try.  Do you periodically drive long distance or  is the short drive the vast 
majority of the Corvair's use?  Does the oil  temperature increase 
significantly on these longer trips?  Is your oil  temperature gauge accurate?  You may 
want to consider taking a longer route  home from work or wherever you drive 
to heat the engine up to an acceptable  level.
 
Good luck,
 
Doc
'60 Corvette; '61 Rampside; '62 Rampside; '64 Spyder coupe;  '65 Greenbrier; 
'66 Corsa turbo coupe; '67 Nova SS; '68 Camaro  ragtop
~~~~~~~~~~~
In a message dated 6/24/2008 6:31:18 P.M. Pacific Daylight Time,  
virtualvairs-request at corvair.org writes:

Message:  6
Date: Tue, 24 Jun 2008 17:01:06 -0500
From: Stephen Upham  <contactsmu at sbcglobal.net>
Subject: <VV> Thanks to all, weight  of oil bath oil, lower shrouds
To: Virtual  Vairs  <virtualvairs at corvair.org>
Message-ID:  <2A5BD32C-131D-452A-A9F7-AD4CD7083916 at sbcglobal.net>
Content-Type:  text/plain;    charset=US-ASCII;    delsp=yes;   format=flowed

First, I want to thank  everyone who chimed in on the low mpg /   
carburetor balancing -  Unisync / ignition advance thread(s).  I STILL  
haven't been  able to get to actually do anything on it yet (wife,  
three year old  son, and month old daughter needing more attention),  
but I do have  nine pages of advice / procedures on the subjects to  
take  to  the garage along with my Basics book, the '65 service  
manual, and my  dad's old Unisync to use to confirm the adjustment.  I  
plan to  try to do the balancing either tonight or in the next couple  
of  days.  I WILL take careful observations and let everyone know what   
I find out.
I was wondering something though, what  weight oil should go in  
the oil bath filter (currently has 30W -  thought I read somewhere -  
90W was recommended) and would THAT have  any effect on the gas mileage?
And, would putting the  lower shrouds back on (and improving the  
door operation per the  article in the Nov. 2007 Communique) improve  
mileage as it would  take a shorter time to warm up?  I'm getting VERY  
cool running  temperatures (often not getting the oil to 212 degrees  
on drives of  less than 15-20 miles - another concern due to the water  
in the oil  not dissipating and forming acids) even though it's summer  
weather  (HOT) here in Dallas, Tx.

You guys are teaching me a lot - thanks  again,

Stephen Upham
Corvaireum II

Mid prod. #18732 -1965  Monza Hardtop 110, Sierra Tan, Saddle








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