Idea about how to find TDC- Do Not Use The Pencil Method
Today I attempted the pencil method of finding TDC for No. 1 cylinder.
Well, the pencil broke off and now I have to remove the head to get the broken pencil and wooden chips out.
But that is OK, since I was wanting to replace the push rod tubes and rear transaxle mounts anyway.
Today I ordered some stainless steel push rod tubes and some other parts from aircooled.net/.
Sleepy Joe
From: John Henry Apr 30 1997, 2:00 am
Pretty cool idea, but I think with the old way you can do the same thing. Pencil in the hole, rotate until the pencil ceases to move up at all, mark the pulley w/chalk. Then keep rotating and stop when the pencil begins to fall, mark again. TDC is in between the two marks (about 5-7 degrees apart). That's the way I have always done it. But I would agree that your method might be slightly more accurate as pinpointing a rotational position as the piston in it's maximum travel speed area is better than doing the "pencil not moving/perception" thing. All has to do with the perception of pencil movement as the piston moves along that sine wave. Harder to detect at the top of the rise. Good idea. John