Shane Bastick Well-Known Member Joined Jan 11, 2011 Messages 3,744 Feb 10, 2017 #1 Just rebuilding A CMB VAC 45, what is the stock head clearance, the .1mm shim or the .2mm shim thanks Shane
Just rebuilding A CMB VAC 45, what is the stock head clearance, the .1mm shim or the .2mm shim thanks Shane
timothy johnson Well-Known Member Supporting Member Joined Jul 9, 2011 Messages 1,794 Feb 11, 2017 #2 Shane from the 2012 CMB VAC 45 Spec sheet " Squish Clearance 0.012" / 0.3mm// Squish Width 0.167"/4.2mm and Squish Area 69.80%" It does not list what head shims are used. Most boater's running high nitro, 50% + are running .008 " HC
Shane from the 2012 CMB VAC 45 Spec sheet " Squish Clearance 0.012" / 0.3mm// Squish Width 0.167"/4.2mm and Squish Area 69.80%" It does not list what head shims are used. Most boater's running high nitro, 50% + are running .008 " HC
Terry Keeley Well-Known Member Supporting Member Joined Jul 24, 2002 Messages 7,133 Feb 11, 2017 #3 You can't just put shims in and call it good, you havta measure the clearance either by mic/solder, plastigauge or one of the dial gauge adapters. https://www.intlwaters.com/gallery/displayimage.php?album=70&pid=17627#top_display_media Last edited by a moderator: Feb 11, 2017
You can't just put shims in and call it good, you havta measure the clearance either by mic/solder, plastigauge or one of the dial gauge adapters. https://www.intlwaters.com/gallery/displayimage.php?album=70&pid=17627#top_display_media