Let me try and keep this stupid question simple.
452 heads.
I did the following last week.
I used a quickly improvised piston stop made from a spark plug in an attempt to locate true TDC and see if my dampener markings were spot on.
The stop has no "play" in it though.
The method we use is to go a little past TDC and set the stop.
Then continue rotating the same direction and look for the piston to stop again before reaching TDC.
Then mark halfway between the two points. That is true TDC.
And even I've got a valve cover off to watch the valves.
When I did this I was able to turn the engine past where it should stop as I continued rotating and then further past TDC.
I'm going to try again tomorrow with more time and a better stop.
I'm sure there is nothing wrong with the engine.
My only question is it appears that on these heads the spark plug seems almost if not completely parallel with the top of the piston.
So I'm wondering if the stop isn't going back and forth in relation to the cylinder instead of up and down.
I have done this procedure with heads where the spark plug is more perpendicular to the top of the piston with no problems.
Does this head design make this method somewhat tricky?
Thanks and keep the faith.
452 heads.
I did the following last week.
I used a quickly improvised piston stop made from a spark plug in an attempt to locate true TDC and see if my dampener markings were spot on.
The stop has no "play" in it though.
The method we use is to go a little past TDC and set the stop.
Then continue rotating the same direction and look for the piston to stop again before reaching TDC.
Then mark halfway between the two points. That is true TDC.
And even I've got a valve cover off to watch the valves.
When I did this I was able to turn the engine past where it should stop as I continued rotating and then further past TDC.
I'm going to try again tomorrow with more time and a better stop.
I'm sure there is nothing wrong with the engine.
My only question is it appears that on these heads the spark plug seems almost if not completely parallel with the top of the piston.
So I'm wondering if the stop isn't going back and forth in relation to the cylinder instead of up and down.
I have done this procedure with heads where the spark plug is more perpendicular to the top of the piston with no problems.
Does this head design make this method somewhat tricky?
Thanks and keep the faith.