<VV> oils for classic cars/ freshened engines

[Mark Durham]

Dan, I agree, you may never really know why something does not work!
But, I'm going to give the 15W50 a try in my motor. That is if I can
find it. My Wally's World quit carrying it. I'll have to try the local
Flaps.

If it goes askew, I'll let everyone know. But, I do not expect any
problems. The way I normally break in a air cooled motor is this.
1. Start and run at 1200-1400 rpm for 3 minutes. Shut off and let cool
to ambient temp.
2. Start and run for 3-5 minutes in the same RPM range, then let it
idle down and adjust mixture, balance and idle. Set timing. Shut off
and let cool off.
3. Go drive it for a half hour or so, make several accelerations to
help seat the rings. receck idle, timing and mixture. The rings should
be initially seated at this time.
Mark Durham



On Sat, Jun 4, 2011 at 1:48 PM,  <djtcz at comcast.net> wrote:
>
> ----- Original Message -----
> From: Mark Durham < 62vair at gmail.com >
> Subject: Re: <VV> New Oils for Classic cars
>
> Eric, too bad on the truck but a nice try. :):)
>
> Thanks for your expereince with the Mobil 1 15W50 oil. I'm about ready
> to start my Corvair Engine I just overhauled, and its been a quandry
> on which oil to install for the first runs.I can certainly see the
> benefits of a slippery synthetic, it can only help preserve the cam
> and lifter faces, but, how long did it take the engines to stabilize
> oil use with break in with the synthetic? I know there are certain car
> manufacturers that send out their cars with Mobil 1 in them from the
> first mile, so I'm not biased one way or the other. I used to use a
> 15W50 semi-synthetic in aircraft piston engines for breakin with no
> trouble.
>
> Regards
>
> Mark Durham
>
>
> ============================================
>
>
> I believe the engines that come with synthetic from the OEM, and modern engines in general, have finer, plateaued surface finishes and rounder, straighter bores than a machine shop is likely to create. However. I'd be surprised if chrome or moly faced rings could not still be "seated" with synthetic, if treated to many occasional short burst of heavy throttle very early in life.
>
>
> I also believe that some of the stories of rings that didn't seat are really the result of fresh rings that scuffed due to inadequate cylinder bore cleaning or even gross gas washing at birth.
>
>
> Dan T
>  _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are the property
> of the writer, please attribute properly. For help, mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America, http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs
>  _______________________________________________
>