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<font size="2" face="Arial, Helvetica, sans-serif" color="black"><blockquote style="border-left: 2px solid blue; padding-left: 3px;">everybody else seems to be using 89.<br>
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<div> <font size="2">HaHa not everybody, rules say 87mm, there are still a few guys running them (and winning)...<br>
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<div><font size="2">Glen <br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Bob Kramer via Fot <fot@autox.team.net><br>
To: van.mulders.marcel <van.mulders.marcel@telenet.be><br>
Cc: fot <fot@autox.team.net><br>
Sent: Fri, Aug 31, 2018 11:26 pm<br>
Subject: Re: [Fot] 89MM piston question<br>
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<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>
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<div dir="ltr">Bob Kramer</div>
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<div class="aolmail_gmail_quote">On Fri, Aug 31, 2018 at 12:43 PM, <span dir="ltr"><<a target="_blank" rel="noopener noreferrer" href="mailto:van.mulders.marcel@telenet.be">van.mulders.marcel@telenet.be</a>></span> wrote:<br>
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<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>
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<div><b>Van: </b>"fot" <<a target="_blank" rel="noopener noreferrer" href="mailto:fot@autox.team.net">fot@autox.team.net</a>><br>
<b>Cc: </b>"fot" <<a target="_blank" rel="noopener noreferrer" href="mailto:fot@autox.team.net">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>
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<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>
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<div dir="ltr">Bob Kramer</div>
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<div class="aolmail_gmail_quote">On Tue, </div>
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