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Pulling a vacuum on the crankcase can be very effective at getting rings=
to seal, but for the vacuum to be helpful, all engine openings need to =
be well sealed. No breathers, dipstick o-ringed or sealed, oil filler s=
ealed tight, etc. I have threaded the dipstick hole and keep it sealed =
with a bolt. Checking the oil takes a few minutes longer, since the bol=
t needs to be removed to insert the dipstick. Pulling a significant vacu=
um is one of the advantages of a dry sump oil system. The dry sump pump=
can pull so much vacuum that a vacuum break is needed to limit the vacu=
um. Joe(B)
---------- Original Message ----------
From: Joe Alexander <joealexandervintage@gmail.com>
To: Joe Boruch <jaboruch@netzero.net>
Cc: britracer89@yahoo.com, fot@autox.team.net
Subject: Re: [Fot] exhaust PCV
Date: Fri, 7 Dec 2018 10:04:41 -0600
This sounds probable. Perhaps more likely on some engines than others.
I tried to imagine the conditions that would create this issue with a w=
et sleeve engine. Didn=E2€™t come with anything. It has been =
effective for us. It is reported to aid in Ring Sealing, too.
Joe Alexander4505 Donald DrCedar Falls, IA 50613The-vintage-racer.comGas=
ketinnovations.comCell: 319.464.4711 =
On Dec 7, 2018, at 8:23 AM, Joe Boruch via Fot <fot@autox.team.net> wrot=
e:
I think that if it sucks oil into the hot exhaust it may ignite in the e=
xhaust, smoke extensively, and if the oil makes it thru the exhaust, oil=
the track. Most rules are written in blood, so I suspect that there we=
re incidents, so it was banned. The rule has existed ever since I have =
been in the SCCA, so I don't have any specific history. Joe(B) =
---------- Original Message ----------
From: Brian Dennis <britracer89@yahoo.com>
To: william.tobin31@verizon.net, Joe Boruch <jaboruch@netzero.net>
Cc: fot@autox.team.net
Subject: Re: [Fot] exhaust PCV
Date: Fri, 7 Dec 2018 13:51:53 +0000 (UTC)
=
Anyone know why it would not be allowed? On Friday, December 7, 2018, 7=
:14:24 AM EST, Joe Boruch via Fot <fot@autox.team.net> wrote: Be aware =
that the some sanctioning bodies do not allow the use of the exhaust to =
be connected to the crankcase for ventilation purposes. The SCCA does n=
ot allow it. Joe(B)
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<html><div>Pulling a vacuum on the crankcase can be very effective at ge=
tting rings to seal, but for the vacuum to be helpful, all engine openin=
gs need to be well sealed. No breathers, dipstick o-ringed or seal=
ed, oil filler sealed tight, etc. I have threaded the dipstick hol=
e and keep it sealed with a bolt. Checking the oil takes a few min=
utes longer, since the bolt needs to be removed to insert the dipstick.<=
/div><div> </div><div>Pulling a significant vacuum is one of the ad=
vantages of a dry sump oil system. The dry sump pump can pull so m=
uch vacuum that a vacuum break is needed to limit the vacuum. Joe(=
B)<br><br>---------- Original Message ----------<br>From: Joe Alexander =
<joealexandervintage@gmail.com><br>To: Joe Boruch <jaboruch@net=
zero.net><br>Cc: britracer89@yahoo.com, fot@autox.team.net<br>Subject=
: Re: [Fot] exhaust PCV<br>Date: Fri, 7 Dec 2018 10:04:41 -0600<br><br>T=
his sounds probable. Perhaps more likely on some engines than others.</p=
><div> </div><div>I tried to imagine the conditions that would crea=
te this issue with a wet sleeve engine. Didn’t come w=
ith anything.</div><div> </div><div>It has been effective for us. I=
t is reported to aid in Ring Sealing, too.<br><br><div id=3D"AppleMailSi=
gnature" dir=3D"ltr">Joe Alexander<div>4505 Donald Dr</div><div>Cedar Fa=
lls, IA 50613</div><div><a href=3D"http://The-vintage-racer.com";>The-vin=
tage-racer.com</a></div><div><a href=3D"http://Gasketinnovations.com";>Ga=
sketinnovations.com</a></div><div>Cell: 319.464.4711</div><div>&nb=
sp;</div></div><div dir=3D"ltr"><br>On Dec 7, 2018, at 8:23 AM, Joe Boru=
ch via Fot <<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net<=
/a>> wrote:<br><br></div><blockquote><div dir=3D"ltr"><div>I think th=
at if it sucks oil into the hot exhaust it may ignite in the exhaust, sm=
oke extensively, and if the oil makes it thru the exhaust, oil the track=
. Most rules are written in blood, so I suspect that there were in=
cidents, so it was banned. The rule has existed ever since I have =
been in the SCCA, so I don't have any specific history. Joe(B)&nbs=
p;<br><br>---------- Original Message ----------<br>From: Brian Dennis &=
lt;<a href=3D"mailto:britracer89@yahoo.com";>britracer89@yahoo.com</a>>=
;<br>To: <a href=3D"mailto:william.tobin31@verizon.net";>william.tobin31@=
verizon.net</a>, Joe Boruch <<a href=3D"mailto:jaboruch@netzero.net";>=
jaboruch@netzero.net</a>><br>Cc: <a href=3D"mailto:fot@autox.team.net=
">fot@autox.team.net</a><br>Subject: Re: [Fot] exhaust PCV<br>Date: Fri,=
7 Dec 2018 13:51:53 +0000 (UTC)<br><br><p> </p><div class=3D"ydp88=
a162f5yahoo-style-wrap" style=3D"font-family: Helvetica Neue, Helvetica,=
Arial, sans-serif; font-size: 16px;"><div> </div><div>Anyone know =
why it would not be allowed?</div><div> </div></div><div id=3D"ydp6=
5a7447dyahoo_quoted_5104419450" class=3D"ydp65a7447dyahoo_quoted"><div s=
tyle=3D"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; fon=
t-size: 13px; color: #26282a;"><div>On Friday, December 7, 2018, 7:14:24=
AM EST, Joe Boruch via Fot <<a href=3D"mailto:fot@autox.team.net";>fo=
t@autox.team.net</a>> wrote:</div><div> </div><div> </div><=
div><div id=3D"ydp65a7447dyiv9430629662"><div>Be aware that the some san=
ctioning bodies do not allow the use of the exhaust to be connected to t=
he crankcase for ventilation purposes. The SCCA does not allow it.=
Joe(B)<br><br></div></div></div></div></div></div></div></blockqu=
ote></div></html>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
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