I pulled #1 plug. Didn't change anything by reducing some compression- still bump against something internal to the engine at the same spot every time. Tried CCW rotation and get same 1/8 to 1/4 crankshaft rotation & then hit hard against something internal. How much rotation would account for...
Happy to try anything, but I was able to turn the engine prior with the socket & pull bar thru several revolutions prior to starting the removal of the crank pulley and later the old timing belt to line everything up- & that was with the spark plugs in.
Concerned @ hitting a valve, so that is why I stopped while rotating. Unsure if I am coming up on compression stroke, but all s.plugs are in. Removed tensioner pin properly, so it did not jump a tooth. Are valve clearances timed so close that being off by 1 or 2 teeth would put me into...
2007 V8 2UZ engine. Was very careful. Ensured new belt matched up with all marks after tension roller back engaged. Started hand rotating clockwise & I bump against some serious engine interference @ 1/8 to 1/4 1st revolution. I stopped. Reversed back to TDC. tried again slowly & hit hard stop...