[Spridgets] 995 Huffaker race engine question

[bmwwxman .]

Is the Huffaker built from the standard A series?  If so, there is no rear
main seal.  Instead they have a "Scroll" seal on the outside of the rear
main bearing.  There is a spiral groove on the rear of the crank shaft
which is supposed to *draw* the oil back into the engine.  However, if you
have too much crank case pressure the scroll seal can't overcome it and it
will weep oil which then collects in the bottom of the bell housing and
pours out onto your driveway.

Before you pull the engine again, check your crank case pressure.  On my
standard 1275 A series I had this problem....  I ended up drilling the side
of the block and installing a pressure relief hose into a small K&N
filter.  There are a couple of *fixes* for this including a kit that Mo$$
offers to replace the rear scroll seal with a better seal but it ain't
cheap.  Another method is a fix whereby you drill a channel into the scroll
and the rear main bearing cap and tighten up the tolerance but if you screw
that up you are out a rear main cap which is not replaceable because it is
line bored.   Don't ask.

Good luck with it.

Cheers!!
Jim

On Mon, Mar 30, 2015 at 9:53 AM, lotuspilot--- via Spridgets <
spridgets at autox.team.net> wrote:

> I was hoping it was just an internal pressure issue.  I may not be so
> lucky.  I guess that I can change that by pulling the engine and removing
> the flywheel.  I would love to try the straight cut gearbox somehow if
> possible.
>
> Any other ideas.
>
> Thanks a bunch,
>
> Mike
>
>
>
>   On Monday, March 30, 2015 10:23 AM, lotuspilot--- via Spridgets <
> spridgets at autox.team.net> wrote:
>
>
> Hi Guys and Gals,
>
> I just rebuilt a Huffaker race engine that had been stored away for
> decades.  I started it after the rebuild and all looked well after I
> discovered that I had the distributor drive gear in 180 out.  That took me
> a while to figure out until I replaced all of the plug wires 1 went to 4
> and 4 went to 1 and 3 to 2 and 2 to 3.
>
> Ok.  Here is my real question after running for about 20 minutes with
> varying engine speed, I noticed that about a quart and a half of oil
> decided it didn't wish to stay in the engine any longer and was being
> deposited on the driveway by way of the hole in the bottom of the
> transmission.  What happened here?  What should I check?
>
> By the way, the engine is running 11.5 :1 compression and all so high
> compression.  It sounded spectacular.  I am dying to drive it once I get
> you all to give me some idea of what may have happened.
>
> Thanks a bunch for all of your thoughts.
>
> Mike C
>
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-- 
Cheers!!
Jim Johnson
High Plains Youth Hockey <http://www.highplainsyouthhockey.org>
Dodge City Trail of Fame <http://www.DodgeCityTrailofFame.org>
Electronic Journal of Severe Storms Meteorology <http://www.EJSSM.org>

*"Tact is the ability to tell someone to go to hell in such a way that they
look forward to the trip."*

*Winston Churchill*
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