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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Jerry <o:p></o:p></p><p class=MsoNormal> The only information I have on the internals is from Bob Mannel’s book pg. 4-42<o:p></o:p></p><p class=MsoNormal>This the early style PCV valves which are serviceable.<o:p></o:p></p><p class=MsoNormal>The later style with the hose fitting are not serviceable so not sure of the internal components.<o:p></o:p></p><p class=MsoNormal>You would have to cut one open to see inside.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ron Fraser<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Tigers <tigers-bounces@autox.team.net> <b>On Behalf Of </b>Jerry Christopherson via Tigers<br><b>Sent:</b> Sunday, October 10, 2021 11:32 PM<br><b>To:</b> tigers@Autox.Team.Net<br><b>Subject:</b> [Tigers] PVC Valve<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'>All this discussion about PVC valves has brought to mind a question I have had for some time, and that is, what are the differences in all these valves on the INSIDE. They have all kinds of different external attachments, but what is <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'>different about say a 289, 302, 351, 352, etc, etc. on the inside. They all work with the vacuum of the engine, varying the volume of vacuum (air) going into the engine depending on engine rpm burning any blow by. Anybody have any actual specs on what is inside any of these?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'>Jerry Christopherson<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'>9473187<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'>TAC #58<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif'> <o:p></o:p></span></p></div></body></html>