Posted by Terry in Bozrah on Thursday, December 29, 2005 at 11:07PM :
Found this on the P15/D24 site.
Had need to find TDC on number 4 cylinder and remembered someone mentioned a whistle being used. Don't have a whistle, but made up a simple fitting from an old sparkplug housing, attached clear tubing and ran it into a jar of water. Bubbles came out on compression, stopped at TDC and started sucking up water immediately after TDC. I worked the crank back and forth slightly a couple times to get accurately centered. Easy to see the water level position inside the small tubing.
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