Re: engine slows when advance timing
You are thinking camshaft, which would be 180 degrees out. You have to rotate the crankshaft one whole revolution to get the #4 cylinder to fire and the #1 to be where the exhaust valve is closing and the intake is opening.
The dimple is usually in the correct place. The only reasons it would not be is if the camshaft gear was not made correctly or not installed correctly or a B front timing gear cover was used. You did the right thing by checking to see that the piston was at the top when the pin slipped into the dimple.
Some people have reported issues with the NuRex timing tool. It may have to do with the type of top plate used or the type of points used. I like to see the point just open when turning the cam counter clockwise. I have the NuRex tool for setting the points gap and that works great.
Check the position of the rotor as Paul suggested in post #13.
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Last edited by nkaminar; 04-14-2024 at 05:59 PM.
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