<html><div>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 sealed 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 bolt needs to be removed to insert the dipstick.</div><div> </div><div>Pulling a significant vacuum 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 vacuum. Joe(B)<br><br>---------- Original Message ----------<br>From: Joe Alexander <joealexandervintage@gmail.com><br>To: Joe Boruch <jaboruch@netzero.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>This sounds probable. Perhaps more likely on some engines than others.</p><div> </div><div>I tried to imagine the conditions that would create this issue with a wet sleeve engine. Didn’t come with anything.</div><div> </div><div>It has been effective for us. It is reported to aid in Ring Sealing, too.<br><br><div id="AppleMailSignature" dir="ltr">Joe Alexander<div>4505 Donald Dr</div><div>Cedar Falls, IA 50613</div><div><a href="http://The-vintage-racer.com">The-vintage-racer.com</a></div><div><a href="http://Gasketinnovations.com">Gasketinnovations.com</a></div><div>Cell: 319.464.4711</div><div> </div></div><div dir="ltr"><br>On Dec 7, 2018, at 8:23 AM, Joe Boruch via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<br><br></div><blockquote><div dir="ltr"><div>I think that if it sucks oil into the hot exhaust it may ignite in the exhaust, 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 were 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) <br><br>---------- Original Message ----------<br>From: Brian Dennis <<a href="mailto:britracer89@yahoo.com">britracer89@yahoo.com</a>><br>To: <a href="mailto:william.tobin31@verizon.net">william.tobin31@verizon.net</a>, Joe Boruch <<a href="mailto:jaboruch@netzero.net">jaboruch@netzero.net</a>><br>Cc: <a href="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="ydp88a162f5yahoo-style-wrap" style="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="ydp65a7447dyahoo_quoted_5104419450" class="ydp65a7447dyahoo_quoted"><div style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 13px; color: #26282a;"><div>On Friday, December 7, 2018, 7:14:24 AM EST, Joe Boruch via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:</div><div> </div><div> </div><div><div id="ydp65a7447dyiv9430629662"><div>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 not allow it. Joe(B)<br><br></div></div></div></div></div></div></div></blockquote></div></html>
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