<div dir="ltr">I've always used 87 MM due to the rules but everybody else seems to be using 89. The procedures are the same so It'll be the same. I blew a head gasket last time out, compression into the cooling system and blew off the bottom hose. I guess it wasn't tight enough, and scuffed two pistons before I could shut it down. </div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Bob Kramer</div></div></div>
<br><div class="gmail_quote">On Fri, Aug 31, 2018 at 12:43 PM, <span dir="ltr"><<a href="mailto:van.mulders.marcel@telenet.be" target="_blank">van.mulders.marcel@telenet.be</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt;color:#000000"><div>Bob,</div><div>It is definitely necessary to make that modification to the liners. The relieve should correspond to the shape of the combustion chambers : about 4 mm wide on a 89mm engine.</div><div>Marcel</div><div><br></div><hr id="m_-391070137228553199zwchr"><div><b>Van: </b>"fot" <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>><br><b>Cc: </b>"fot" <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>><br><b>Verzonden: </b>Donderdag 30 augustus 2018 00:05:43<br><b>Onderwerp: </b>[Fot] 89MM piston question<br></div><br><div><div dir="ltr">Do the guys running the 89MM pistons and liners need to relieve the liners to clear the intake valve, or does the extra MM make the difference?<br><div class="gmail_extra"><br clear="all"><div><div class="m_-391070137228553199gmail_signature"><div dir="ltr">Bob Kramer</div></div></div>
<br><div class="gmail_quote">On Tue, </div></div></div>
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