<VV> Deves rings?

[Mark Durham]

Bob, I've used this procedure on hundreds of air cooled engines, many of
which I took apart again at overhaul 2000 hours later and never had any
scratches on the bearings or crank journals. The rings seat in faster when
cold and if you overheat the engine you glaze the barrels with burnt oil.

Regardless of which procedure you use, that first start rubs off the
tallest ridges of the cross hatch pattern in less than a minute, not enough
time to get oil temp up. after that, its simply fine tuning the wear in
pattern.  Besides, if you are using the correct viscosity oil that oil
bypass should not be a problem. plus, most of the wear in metal particles
are smaller than most filters can collect. Mark Durham.



Sent from my Windows Phone
------------------------------
From: BobHelt at aol.com
Sent: 3/29/2013 9:24
To: 62vair at gmail.com; bryan at skiblack.com; virtualvairs at corvair.org
Subject: Re: <VV> Deves rings?

  Bryan,
This may work to break in an engine, but I am greatly concerned that this
practice will not bring the oil temp up to a point where it will flow thru
the filter.  Not getting the oil to flow thru the filter means gobs of
metal particles circulating thru the engine. It would seem like this would
keep the filter bypass open and never allow the filter to work.
Regards,
Bob Helt

 In a message dated 3/28/2013 8:08:05 P.M. US Mountain Standard Time,
62vair at gmail.com writes:

. Also, if you do the initial break in cold by starting and
running at 1200 to 1500 rpm and rum for 3 min and shut off, let cool,
do it again, let it cool, then on the third start set timing and idle,
then go drive.