<font color='black' size='2' face='Arial, Helvetica, sans-serif'>Hi <font size="2">John: <br>
<br>
Great question.<br>
<br>
I recognized that that grinding off the the valve reliefs would be a potential issue. Here are some liner specs from the outside in. </font><br>
<font size="2"><font size="2">The total width of the liner is 4.105" (not including flat portion). </font></font><br>
<font size="2"><font size="2"><font size="2">The ID of the start of Flat is 3.920"</font></font><br>
The OD of the groove is at 3.862". </font><br>
<font size="2"><font size="2">The ID of the groove is 3.822"</font><br>
<br>
<br>
For a 87mm (3.425) bore this leaves 0.397" ( 3.822- 3.425) space from the edge of the bore circumference to the ID edge of the groove.<br>
<br>
For a 89mm bore (3.504") this leaves 0.318". (3.822-3.504)<br>
<br>
In my estimation this should leave enough space to make a reasonable relief for the valve. I suspect you could get pretty close the inner most portion of the ring groove and be safe. <br>
<br>
Don"t forget the larger the relief the closer the top ring gets to the point in the liner barrel where It could be at jeopardy for blow-by</font><font size="2"><font size="2">. Give or take top rings are .230" below the top of the piston</font> . Another concern is loss of CR as the volume removed from the liner has just been added to the combustion chamber total volume.<br>
<br>
Hope this helps.<br>
<br>
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<br>
<br>
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<div style="clear:both">MDunst<br>
Headgasket.com<br>
626.358.1616 T<br>
626.628.3777 F<br>
Triple R Munitions, Inc<br>
626.201.9471 T<br>
FFL 6,7 SOT 2<br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: John Styduhar <johnstydo@gmail.com><br>
To: Mordy Dunst <gasket.works@gte.net><br>
Cc: Triumph 'Friends of Triumph <fot@autox.team.net><br>
Sent: Sun, Mar 6, 2016 6:41 am<br>
Subject: Re: [Fot] Different Tr3/4 sleeve design<br>
<br>
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<div class="gmail_default" style="font-size:small">Hi Mordy, I like your design and the amount of material you have at the top of the liner in case you want to shorten the liners. I wonder if the wire groove would be interfered with after you cut the intake valve relief in the top of the liner. What sizes are you going to make?</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Sat, Mar 5, 2016 at 4:34 PM, Mordy Dunst <span dir="ltr"><<a target="_blank" href="mailto:gasket.works@gte.net">gasket.works@gte.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I've been thinking about the tr tractor motor sleeve/liner for a while -especially after a liner cracked during a race. <br>
Went to the drawing board (autcad) and put some of my thoughts in a digital cad format.
<div>The owner of LA sleeve cleaned up my drawing a bit and I am glad to see that the project is completed.</div>
<div><br>
</div>
<div>Some comments - some surprising.</div>
<div>1) each liner is about 200 gm lighter than stock. The liner is shortened to be the same Dimension as the depth of the pocket in the block. <br>
2) it is substantially stiffer than stock and holds machining tolerances much better.</div>
<div>3) the .040" groove is .035" deep to accept a .040" wire. (Square wire or round)</div>
<div>4) the wire groove on the surface may not need a wire -as the edges on either side in the groove impart an increased unit surface pressure on the gasket. The gasket will dimple into this recess and lock. </div>
<div>5) there is only a single flat on opposing liners. My understanding of having multiple flats was to rotate and hone the liners during engine/tractor rebuilds. </div>
<div>6) cooling efficiency not tested.</div>
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<div>MDunst<br>
<a target="_blank" href="http://headgasket.com">Headgasket.com</a><br>
<a target="_blank" href="tel:626.358.1616">626.358.1616</a> T<br>
<a target="_blank" href="tel:626.628.3777">626.628.3777</a> F<br>
Triple R Munitions, Inc<br>
<a target="_blank" href="tel:626.201.9471">626.201.9471</a> T<br>
FFL 6,7 SOT 2<br>
<br>
<br>
</div>
</div>
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