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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Harold, I am not sure about the situation you describe, but I can tell you that after a 10 year chase to stop oil from getting into the coolant in my BN7 using multiple head gaskets and the Southern Carburetor drilling kit, etc., Hardblok did the job perfectly. Attached is an image of where my builder put it, rolling the block to place the product where he deduced the seepage came through. In this specific use, I do not think there was much change in heat transfer. Jim Wojcik, MN<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></a></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Healeys [mailto:healeys-bounces@autox.team.net] <b>On Behalf Of </b>Harold Manifold<br><b>Sent:</b> Sunday, November 19, 2017 12:50 PM<br><b>To:</b> healeys@autox.team.net<br><b>Subject:</b> [Healeys] Engine Block Filler for Healey Engine<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>I would like advise and comments about the pros and cons of partially filling the water jacket with engine block filler on a Healey 3000 engine. For those who have not aware of this process here is a website for one the products:</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'><a href="http://www.hardblok.com/">http://www.hardblok.com/</a></span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>The engine I have was sitting idle for 35 years without draining any of the coolant and I am concerned corrosion may have reduced the material thickness between the oil gallery and the water jacket. I am contemplating filling the block to just below the frost plugs primarily to reduce the chance engine oil under pressure can migrate through porous parts of the block and into the cooling water jacket.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Pros</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Second barrier between oil gallery and water jacket</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Stiffens the bottom of the piston sleeves</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Keeps cylinders walls from flexing</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Reduces blow by and piston wear</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Cons</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Reduces coolant volume</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Reduces contact area between piston sleeves and water jacket</span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Cannot be removed</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>There is no going back if I decide to do this and I am wondering if the risk is worth the reward.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Your comments are appreciated.</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial",sans-serif'>Harold</span><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></body></html>