Folks,
I have never heard of a motor blowing a head gasket after being CCed with
ATF. I used it on my diesel two years ago without any problems (then again
it burns oil...). It is very accurate on small displacement engines, that
is why the motorcycle guys use it.
Yes, Bruce Johnson had some pretty neat tools that he brought with him every
year. I am not sure what happened to them, BUT you can make tools that can
be used for measuring your motor. Rick Yacoucci made a cool device to
measure his bore on the bike. It is a center plug head so it makes
measuring easy. He said that he would sell them, you might ask. We are all
for neat tools that make our (and your) job easier in impound.
The SCTA just purchased 2 new P&G pumps for the impound, we got a hell of a
deal at $1400 plus shipping, tax and etc. Wait, I do not think we budgeted
that much money for these.... Oh, just another financial problem to work
out...
Mike (who thought ATF was better to deal with than diesel oil) Manghelli
SCTA President
-----Original Message-----
From: Jim Bickford <jbickford@volcano.net>
To: Tom Neimeyer <3cbxs@ev1.net>; land-speed@autox.team.net
<land-speed@autox.team.net>
Date: Saturday, December 16, 2000 5:44 PM
Subject: Re: Verifying Displacement
>Tom,
>
>Bruce Johnston had a dial indicator that on engines with the spark
>plug hole centered in the cylinder bore, would measure the bore.
>
>It would go through a 12mm and maybe a 10mm spark plug hole.
>No need to use the ATF. When Bruce was killed a few years ago, I
>don't know if it went to the SCTA or not. Dan Warner may know if it
>is still available.
>
>If it has to be CC'd with oil I would have them use 2 stroke or a synthetic
>engine oil. The engine will purge that better than the ATF, especially on
>turbo motor, less mess.
>
>Jim
>----- Original Message -----
>From: "Tom Neimeyer" <3cbxs@ev1.net>
>To: <land-speed@autox.team.net>
>Sent: Saturday, December 16, 2000 2:06 PM
>Subject: Verifying Displacement
>
>
>> I have heard of the P&G pump and wonder why it was not used on our
>> motorcycle last year? Instead we got to fill it with automatic
>transmission
>> fluid. On the next run we blew the head gasket in that cylinder. We
>tried
>> to "wash", "blow" and clean out all the ATF. I have heard this is common
>> (blowing head gasket on cylinder checked with ATF) any thoughts about
>this?
>>
>> Regards, Tom
>>
>> ----- Original Message -----
>> From: "Jim Dincau" <jdincau@qnet.com>
>> To: "Chuck Rothfuss" <crothfuss@coastalnet.com>;
><land-speed@autox.team.net>
>> Sent: Saturday, December 16, 2000 2:38 PM
>> Subject: Re: Rotarys
>>
>>
>> > Chuck
>> > The P&G "pump" is a transparent cylinder with a free piston in it.
>It
>> > is plumbed to a spark plug hole, the intake and exhaust valves are
>> disabled
>> > and the engine turned over with the starter. Air going in and out of
the
>> > cylinder bumps an O ring to indicate maximum travel. Volume is directly
>> read
>> > by calibrations on the side of the cylinder. Several possibilities for
>> error
>> > exist, air temperature, piston and O-ring to wall friction in the
>> measuring
>> > cyl and rotational speed. Dan measures the cylinder temp and apples a
>> > correction factor but the other two are hard to keep constant. That is
>why
>> > for engines within 3% of the max or min they require direct
measurement.
>> > Hope that was helpful.
>> > Jim in Palmdale who at any minute has to give up the computer to his
>> > granddaughter
>> >
>> > ----- Original Message -----
>> > From: Chuck Rothfuss <crothfuss@coastalnet.com>
>> > To: <land-speed@autox.team.net>
>> > Sent: Saturday, December 16, 2000 10:13 AM
>> > Subject: Re: Rotarys
>> >
>> >
>> > > Dave, List,
>> > >
>> > > I've offered to provide pieces to be measured by ECTA officials,
>and
>> > have
>> > > explained repeatedly the futility, as Dave mentioned, of trying to
>alter
>> > the
>> > > factory dimensions. (making an expensive tear-down to measure one of
>my
>> > > engines unnecessary) All seems to rest with the SCTA rules commitee,
>as
>> > the
>> > > ECTA rules mirror what is established by the senior organization.
>> > >
>> > > I'm not familiar enough with the P&G ("pumping") equipment, that
is
>> now
>> > > apparently available on both coasts, to understand how testing is
>> > conducted.
>> > > Can someone shed some light on this, and the potential use of such
>> > equipment
>> > > on a rotary? Since we are comparing the breathing capability of
>engines
>> > > this certainly seems like a fair way to compare them.
>> > >
>> > > As a non-engineer I figure out most things by simply fumbling
>around
>> > and
>> > > experimenting with things til I get it right. (I call it "FUN") If I
>> have
>> > > to run down someone with "pumping" equipment and "pump" one of my
nice
>> > tight
>> > > 13B's I'd be happy to do that.
>> > >
>> > > Chuck Rothfuss
>> > > ECTA
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